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August 2,1999
These release notes for Cisco 2600 series support Cisco IOS Release 11.3 T, up to and including Release 11.3(11)T. These release notes are updated as needed to accommodated to describe new features, memory requirements, hardware support, software platform deferrals, and changes to the microcode or modem code and related documents.
For a list of the software caveats that apply to Release 11.3 T, refer to Caveats for Cisco IOS Release 11.3 T document that accompanies these release notes. This caveats document is updated for every maintenance release and is located on Cisco Connection Online (CCO) and the Documentation CD-ROM. For more information, refer to the "Caveats" section of this document.
Use these release notes in conjunction with the Release Notes for Cisco IOS Release 11.3 located on Cisco Connection Online (CCO) and the Documentation CD-ROM. Because Release 11.3 T is based on Release 11.3, all features and caveats in Release 11.3 are also in Release 11.3 T.
These release notes discuss the following topics:
This section provides information about the Cisco 2600 series routers and Early Deployment Releases (ED) for the Cisco 2600 series routers.
Cisco Systems extends enterprise-class versatility, integration, and power to branch offices with the Cisco 2600 series modular access router family. The Cisco 2600 series routers are cost-effective, modular access routers designed to enable customers to easily adopt future technologies and scale to accommodate network expansion, thereby protecting the customer's investment. The Cisco 2600 series shares modular interfaces with the Cisco 1600, 1700, and 3600 series, providing a cost-effective solution to meet today's branch office needs for applications such as:
The Cisco 2600 series modular architecture provides the versatility needed to adapt to changes in network technology as new services and applications become available. Driven by a powerful RISC processor, the Cisco 2600 series supports the advanced Quality of Service (QoS), security, and network integration features required in today's evolving enterprise networks.
This release notes is based on the Cisco 2600 for Cisco IOS Release 11.310)T. Release 11.3 T is an Early Deployment (ED) release, delivering fixes to software caveats and support for new Cisco hardware. The following table briefly describes some of the ED releases now and soon to be available for the Cisco 2600 series.
| ED Release | Maintenance Release | Additional Software Features | Additional Hardware Features | Additional Feature Sets | Availability |
|---|---|---|---|---|---|
Release 11.3 T | 8 | N/A | N/A | N/A | Now |
Release 12.0 XD | 2 | N/A | ISDN BRI Voice over IP network module |
| Now |
Release 12.0 XC | 2 | N/A |
|
| Now |
Release 12.0 T | 2 | 3DES w/IPSec Encription | Data Compression Advanced Integration Module |
| Now |
Cisco IOS Release 12.0T | 1 | N/A | N/A |
| Now |
This section describes the system requirements for Release 11.3(11)T and includes the following sections:
Table 2 describes the memory requirements of the Cisco IOS feature sets for the Cisco 2600 series for Release 11.3(11)T. All "Plus" feature sets include voice network support.
| Feature Set | Image Name | Required Flash Memory | Required DRAM Memory | Runs From | Feature Status | |
|---|---|---|---|---|---|---|
| IP Standard Feature Set | IP | c2600-i-mz | 4 MB | 16 MB | RAM | Added in Release 11.3(3)T |
IP Plus | c2600-is-mz | 8 MB | 24 MB | RAM | Added in Release 11.3(3)T | |
IP Plus 40 | c2600-is40-mz | 8 MB | 24 MB | RAM | Encryption image added in Release 11.3(3)T | |
IP Plus 56 | c2600-is56-mz | 8 MB | 24 MB | RAM | Encryption image added in Release 11.3(3)T | |
IP Plus IPsec 56 | c2600-is56i-mz | 8 MB | 24 MB | RAM | Encryption image added in Release 11.3(3)T | |
| IP/IPX/AT/DEC Standard Feature Set | IP/IPX/AT/DEC | c2600-d-mz | 8 MB | 20 MB | RAM | Added in Release 11.3(3)T |
IP/IPX/AT/DEC Plus | c2600-ds-mz | 8 MB | 24 MB | RAM | Added in Release 11.3(3)T | |
| Enterprise Standard Feature Set | Enterprise Plus | c2600-js-mz | 8 MB | 24 MB | RAM | Added in Release 11.3(3)T |
Enterprise Plus IPsec | c2600-js56i-mz | 8 MB | 32 MB | RAM | Added in Release 11.3(3)T | |
| Enterprise/APPN Standard Feature Set | Enterprise/APPN Plus | c2600-ajs-mz | 8 MB | 32 MB | RAM | Added in Release 11.3(3)T |
Enterprise/APPN Plus IPsec 56 | c2600-ajs56i-mz | 16 MB | 32 MB | RAM | Encryption image added in Release 11.3(3)T | |
| Remote Access Server Feature Set | Remote Access Server | c2600-c-mz | 4 MB | 16 MB | RAM | Added in Release 11.3(3)T |
Cisco IOS Release 11.3(11)T supports the Cisco 2600 series routers:
Table 3 lists the interfaces supported by the Cisco 2600 series.
| Interface, Network Module, or Data Rate1 | In2 | Platforms Supported | |
|---|---|---|---|
| LAN Interfaces | 1- or 2-port Ethernet (10BaseT) |
| Cisco 2610, Cisco 2611, Cisco 2612 |
1-port Token Ring (RJ-45) |
| Cisco 2612, Cisco 2613 | |
| LAN Network Modules | 4-port Ethernet |
| All Cisco 2600 series platforms |
1-port Ethernet |
| All Cisco 2600 series platforms | |
1-port ATM-25 RJ-45 interface |
| All Cisco 2600 series platforms | |
| Serial Network Modules | 16- or 32-port Asynchronous | (2) | All Cisco 2600 series platforms |
4- or 8-port Asynchronous/ Synchronous Serial low speed (128 kbps max) | (2) | All Cisco 2600 series platforms | |
| Dial, ISDN and Channelized Serial Network Modules | 1- or 2-port Channelized T1/ISDN PRI | (4) | All Cisco 2600 series platforms |
1- or 2-port Channelized T1/ISDN PRI with CSU | (4) | All Cisco 2600 series platforms | |
1- or 2-port Channelized E1/ISDN PRI balanced | (4) | All Cisco 2600 series platforms | |
1- or 2-port Channelized E1/ISDN PRI unbalanced | (4) | All Cisco 2600 series platforms | |
4-or 8-port ISDN BRI S/T interface | (4) | All Cisco 2600 series platforms | |
4- or 8-port ISDN BRI U (NT1) interface | (4) | All Cisco 2600 series platforms | |
8 or 16 Analog Modems | (4) | All Cisco 2600 series platforms | |
| Voice/Fax Network Modules | 1 or 2 Voice/Fax Interface Card Slots | (2) | All Cisco 2600 series platforms |
| WAN Interface Cards and Voice Interface Cards | 1-port ISDN BRI S/T interface (requires external NT1) |
| All Cisco 2600 series platforms |
1-port BRI U |
| All Cisco 2600 series platforms | |
1-port 56/64-kbps DSU/CSU |
| All Cisco 2600 series platforms | |
1- or 2-port T1/Fractional T1 with DSU/CSU |
| All Cisco 2600 series platforms | |
1-port High-Speed Serial (up to 2.048 Mbps) |
| All Cisco 2600 series platforms | |
2-port Dual High-speed Serial (up to 2.048 Mbps; Asynchronous/ Synchronous support) |
| All Cisco 2600 series platforms | |
2-port Asynchronous/ Synchronous (up to 128 kbps) |
| All Cisco 2600 series platforms | |
2-port FXS Voice/Fax interface card for Voice/Fax network module3 |
| All Cisco 2600 series platforms with Voice/Fax network module | |
2-port FXO Voice/Fax interface card for Voice/Fax network module3 |
| All Cisco 2600 series platforms with Voice/Fax network module | |
2-port E&M Voice/Fax interface card for Voice/Fax network module 3 |
| All Cisco 2600 series platforms with Voice/Fax network module | |
| Advanced Integration Modules | Data Compression AIM (up to 8.192 Mbps) | (6) | All Cisco 2600 series platforms, requires Cisco IOS version 12.0(2)T or higher. |
To determine the version of Cisco IOS software currently running on the Cisco 2600 series router, log into the router and use the show version EXEC command. The following is sample output from the show version command. The version number is indicated on the second line as shown below:
Cisco Internetwork Operating System Software IOS (tm) 2600 Software (C2600-JS-L), Version 11.3(11)T, RELEASE SOFTWARE
Additional command output lines include more information, such as processor revision numbers, memory amounts, hardware IDs, and partition information.
For generic information on upgrading to a new software release, refer to the Cisco IOS Software Release Upgrade Paths and Packaging Simplification product bulletin located on CCO at:
Service & Support: Product Bulletins. Scroll to Software. Under Cisco IOS 11.3, click Cisco IOS Software Release 11.3 Upgrade Paths (#703: 12/97) .
The latest version of analog modem firmware for the Cisco 2600 series allows support of the internal analog modems in a wide range of countries. Firmware version 1.0.1 extends support internationally starting with Release 11.3(5)T and later releases.
To access Cisco 2600 firmware documentation on CCO, follow this path:
Service & Support: Documentation Home Page: Access Servers and Access Routers: Modular Access Routers: Cisco 2600 Series Routers: Analog Modem Firmware
To access Cisco 2600 firmware documentation on the Documentation CD-ROM, follow this path:
Cisco Product Documentation: Access Servers and Access Routers: Modular Access Routers: Cisco 2600 Series Routers: Analog Modem Firmware
Cisco IOS software is packaged in feature sets (also called software images) depending on the platform. Each feature set contains a specific set of Cisco IOS features. The following section lists the feature set matrix and the features supported by each feature set.
The feature set matrix shows the feature set organization and lists which feature sets are available on the Cisco 2600 series for Release 11.3 T. Table 4 lists the Cisco IOS software features available for the Cisco 2600 series in Cisco IOS Release 11.3 T.
Release 11.3(11)T supports the same feature sets as Release 11.3(7), but it might also have new features, or new features not supported by the Cisco 2600 series. Table 4 lists the feature set name, the feature set matrix term, the software image name, and the supported platforms.
| Feature Set | Feature Set Matrix Term | Software Image | Platforms | |
|---|---|---|---|---|
| IP Standard Feature Sets | IP | Basic1 | c2600-i-mz | All Cisco 2600 series platforms |
IP Plus | Basic, Plus2 | c2600-is-mz | All Cisco 2600 series platforms | |
IP Plus 40 | Plus, Plus 403 | c2600-is40-mz | All Cisco 2600 series platforms | |
IP Plus 56 | Plus, Plus 564 | c2600-is56-mz | All Cisco 2600 series platforms | |
IP Plus IPsec 56 | Plus, Plus IPsec 565 | c2600-is56i-mz | All Cisco 2600 series platforms | |
| IP/IPX/AppleTalk/DEC Standard Feature Sets | IP/IPX/AppleTalk/DEC | Basic | c2600-d-mz | All Cisco 2600 series platforms |
IP/IPX/AppleTalk/DEC Plus | Basic, Plus | c2600-ds-mz | All Cisco 2600 series platforms | |
| Enterprise Standard Feature Sets | Enterprise Plus | Plus | c2600-js-mz | All Cisco 2600 series platforms |
Enterprise Plus IPsec 56 | Plus, Plus IPsec 56 | c2600-j56i-mz | All Cisco 2600 series platforms | |
| Enterprise/APPN Standard Feature Set | Enterprise/APPN Plus | Plus | c2600-ajs-mz | All Cisco 2600 series platforms |
Enterprise/APPN Plus IPsec 56 | Plus | c2600-asj56i-mz | All Cisco 2600 series platforms | |
Remote Access Server | Basic | c2600-c-mz | All Cisco 2600 series platforms | |
 | Caution Cisco IOS images with strong encryption (including, but not limited to, 56-bit data encryption feature sets) are subject to U.S. government export controls, and have a limited distribution. Images to be installed outside the U.S. require an export license. Customer orders might be denied or subject to delay due to U.S. government regulations. Contact your sales representative or distributor for more information, or send e-mail to export@cisco.com. |
Table 5 lists the features and feature sets supported by the Cisco IOS Release 11.3 T for the Cisco 2600. This table uses the following conventions to identify features:
| Feature | In1 | Feature Set | Feature Set | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| IP | IP Plus | IP Plus 40 | IP Plus 56 | IP Plus IPSEC 56 | IP/ IPX/ AT/ DEC | IP/ IPX/ AT/ DEC Plus | Enter- prise Plus | Enter- prise Plus IPSEC 56 | Enter- prise/ APPN Plus | Enter- prise/ APPN Plus IPSEC 56 | Remote Access Server | ||
| IBM Support | |||||||||||||
APPN High-Performance Routing |
| No | No | No | No | No | No | No | No | No | Yes | No | No |
APPN MIB Enhancements |
| No | No | No | No | No | No | No | No | No | Yes | No | No |
APPN Modularity Enhancements |
| No | No | No | No | No | No | No | No | No | Yes | No | No |
APPN over Ethernet LAN Emulation |
| No | No | No | No | No | No | No | No | No | Yes | No | No |
APPN Scalability Enhancements |
| No | No | No | No | No | No | No | No | No | Yes | No | No |
BAN for SNA Frame Relay support |
| No | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | Yes | No |
Bisync Enhancements, include:
|
| No | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | Yes | No |
Caching and filtering |
| No | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | Yes | No |
Cisco MultiPath Channel (CMPC) |
| No | No | No | No | No | No | No | No | No | No | No | No |
DLSw+ Enhancements, include:
|
| No | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | Yes | No |
Downstream PU concentration (DSPU) |
| No | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | Yes |
|
Frame Relay SNA support (RFC 1490) |
| No | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | Yes | No |
FRAS Enhancements, include:
|
| No | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | Yes | No |
IBU Modularity Enhancements |
| Yes | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | Yes | No |
Native Client Interface Architecture (NCIA) Server |
| No | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | Yes | No |
NetView Native Service Point |
| No | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | Yes | No |
Polled asynch (ADT, ADPLEX) |
| No | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | Yes | No |
QLLC |
| No | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | Yes | No |
Response Time Reporter (RTR) |
| No | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | Yes |
|
RFC 1795 |
| No | No | No | No | No | No | No | No | No | No | No | No |
RSRB |
| No | No | No | No | No | No | No | No | No | No | No | No |
SDLC integration |
| No | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | Yes | No |
SDLC transport (STUN) |
| No | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | Yes | No |
SDLC-to-LAN conversion (SDLLC) |
| No | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | Yes | No |
SNA and NetBIOS WAN optimization via local acknowledgment |
| No | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | Yes | No |
SRB/RSRB |
| No | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | Yes | No |
SRT |
| No | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | Yes | No |
TG/COS |
| No | No | No | No | No | No | No | Yes | Yes | Yes | Yes | No |
TN3270 |
| No | No | No | No | No | No | No | Yes | Yes | Yes | Yes | Yes |
TN3270 LU Nailing |
| No | No | No | No | No | No | No | No | No | No | No | No |
TN3270 Server Enhancements |
| No | No | No | No | No | No | No | No | No | No | No | No |
Token Ring LANE |
| No | No | No | No | No | No | No | No | No | No | No | No |
Tunneling of Asynchronous Security Protocols |
| Yes | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | Yes | No |
| Internet | |||||||||||||
DRP Server Agent |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No |
DRP Server Agent Enhancements | (2) | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No |
| IP Routing | |||||||||||||
BGP |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No |
BGP4 |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No |
Easy IP (Phase 1) |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
EGP |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No |
Enhanced IGRP |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Enhanced IGRP Optimizations |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
ES-IS |
| No | No | No | No | No | No | No | Yes | Yes | Yes | Yes | No |
Hot Standby Router Protocol (HSRP) over ISL in Virtual LAN Configurations |
| No | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No |
IP Enhanced IGRP Route Authentication |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
IP Type of Service and Precedence for GRE Tunnels | (4) | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
IS-IS |
| No | No | No | No | No | No | No | Yes | Yes | Yes | Yes | No |
Multiple group Hot Standby Router Protocol (M-HSRP) | _ | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Named IP Access Control List |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No |
Network Address Translation (NAT) |
| No | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | Yes | No |
NHRP |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No |
On Demand Routing (ODR) |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
OSPF |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No |
OSPF Not-So-Stubby-Areas (NSSA) |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No |
OSPF On Demand Circuit (RFC 1793) |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No |
PIM |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Policy-based routing |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
RIP |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
RIP Version 2 |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
TCP Enhancements, include:
|
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes |
| LAN Support | |||||||||||||
Apollo Domain |
| No | No | No | No | No | No | No | Yes | Yes | Yes | Yes | No |
AppleTalk 1 and 21 |
| No | No | No | No | No | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
AppleTalk Access List Enhancements |
| No | No | No | No | No | Yes | Yes | Yes | Yes | Yes | Yes | No |
Banyan VINES |
| No | No | No | No | No | No | No | Yes | Yes | Yes | Yes | No |
Concurrent routing and bridging |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No |
DECnet Accounting |
| No | No | No | No | No | Yes | Yes | Yes | Yes | Yes | Yes | No |
DECnet IV |
| No | No | No | No | No | Yes | Yes | Yes | Yes | Yes | Yes | No |
DECnet V |
| No | No | No | No | No | No | No | Yes | Yes | Yes | Yes | No |
GRE |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Integrated routing and bridging (IRB) |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
IP |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
IPX Named Access Lists |
| No | No | No | No | No | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
IPX SAP-after-RIP |
| No | No | No | No | No | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
LAN extension host |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No |
Multiring |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
NLSP Enhancements |
| No | No | No | No | No | No | No | Yes | Yes | Yes | Yes | No |
NLSP Multicast Support |
| No | No | No | No | No | Yes | Yes | Yes | Yes | Yes | Yes | No |
Novell IPX |
| No | No | No | No | No | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
OSI |
| No | No | No | No | No | No | No | Yes | Yes | Yes | Yes | No |
Source-route bridging |
| No | No | No | No | No | No | No | No | No | No | No | No |
Transparent and translational bridging |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No |
Transparent bridging |
| No | No | No | No | No | No | No | No | No | No | No | No |
VLANs (ISL and IEEE 802.10) Cisco 4500 only |
| No | No | No | No | No | No | No | No | No | No | No | No |
XNS |
| No | No | No | No | No | No | No | Yes | Yes | Yes | Yes | No |
| Management | |||||||||||||
AutoInstall |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Automatic modem configuration |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Cisco Call History MIB Command-Line Interface |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Cisco IOS Internationalization |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Entity MIB (Phase I) |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
HTTP Server |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
RMON events and alarms |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
RMON full (Cisco 2500 only) |
| No | No | No | No | No | No | No | No | No | No | No | No |
SNMP |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
SNMP Inform Requests | (1) | No | No | No | No | No | No | No | Yes | Yes | Yes | Yes | No |
SNMPv2C |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Telnet |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Virtual Profiles |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
VPDN MIB and Syslog Facility | (2) | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Multimedia and Quality of Service | |||||||||||||
Generic traffic shaping |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
IP Multicast Load Splitting across Equal-Cost Paths |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No | Yes | No | Yes |
IP Multicast over ATM Point-to-Multipoint Virtual Circuits |
| No | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | Yes | No |
IP Multicast over Token Ring LANs |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
PIM Version 2 | (2) | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Random Early Detection (RED) |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No |
Resource Reservation Protocol (RSVP) |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No |
RTP Header Compression |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Stub IP Multicast Routing |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Voice over IP | (2) | No | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | Yes | No |
| Other Routing | |||||||||||||
AURP |
| No | No | No | No | No | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
IPX RIP |
| No | No | No | No | No | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
NLSP |
| No | No | No | No | No | Yes | Yes | Yes | Yes | Yes | Yes | No |
RTMP |
| No | No | No | No | No | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
SMRP |
| No | No | No | No | No | Yes | Yes | Yes | Yes | Yes | Yes | No |
SRTP |
| No | No | No | No | No | No | No | Yes | Yes | Yes | Yes | No |
| Protocol Translation | |||||||||||||
LAT |
| No | No | No | No | No | No | No | Yes | Yes | Yes | Yes | Yes |
PPP7 |
| No | No | No | No | No | No | No | Yes | Yes | Yes | Yes | Yes |
Rlogin |
| No | No | No | No | No | No | No | Yes | Yes | Yes | Yes | Yes |
Telnet |
| No | No | No | No | No | No | No | Yes | Yes | Yes | Yes | Yes |
TN3270 |
| No | No | No | No | No | No | No | Yes | Yes | Yes | Yes | Yes |
X.25 |
| No | No | No | No | No | No | No | Yes | Yes | Yes | Yes | Yes |
| Remote Node | |||||||||||||
ARAP 1.0/2.0 |
| No | No | No | No | No | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Asynchronous master interfaces |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
ATCP |
| No | No | No | No | No | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
CPPP |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
CSLIP |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
DHCP |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
IP pooling |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
IPX and ARAP on virtual asynch interfaces |
| No | No | No | No | No | No | No | Yes | Yes | Yes | Yes | Yes |
IPXCP |
| No | No | No | No | No | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
MacIP |
| No | No | No | No | No | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
NASI |
| No | No | No | No | No | No | No | Yes | Yes | Yes | Yes | No |
NetBEUI over PPP |
| No | No | No | No | No | No | No | Yes | Yes | Yes | Yes | No |
PPP |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
SLIP |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Security | |||||||||||||
Access lists |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Access security |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Authenticating ACLs Featurette |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No |
Automated Double Authentication | (3) | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Certificate Authority Interoperability | (3) | No | No | No | No | Yes | No | No | No | Yes | No | Yes | No |
Encrypted Kerberized Telnet |
| No | No | No | No | No | No | No | No | Yes | No | Yes | No |
Extended access lists |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
HTTP Security |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Internet Key Exchange Security Protocol | (3) | Yes | Yes | No | No | No | Yes | Yes | No | Yes | Yes | Yes | Yes |
Kerberized login |
| No | No | No | No | No | No | No | Yes | Yes | Yes | Yes | No |
Kerberos V client support |
| No | No | No | No | No | No | No | Yes | Yes | Yes | Yes | No |
Lock and key |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
MAC security for hubs |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No |
MD5 routing authentication |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
MS-CHAP Support | (3) | No | No | No | No | No | No | No | Yes | Yes | Yes | Yes | No |
Named Method Lists for AAA Authorization & Accounting | (3) | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Network layer encryption (export controlled 40-bit and 56-bit DES) |
| No | No | Yes | Yes | Yes | No | No | No | Yes | No | Yes | No |
Per-User Configuration |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Reflexive Access Lists |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Router authentication |
| No | No | Yes | Yes | Yes | No | No | No | Yes | No | Yes | No |
Subblock (Phase I) |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
TACACS+ |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
TCP Intercept |
| No | No | No | No | No | No | No | Yes | Yes | Yes | Yes | No |
Vendor-Proprietary RADIUS Attributes | (3) | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Switching | |||||||||||||
AppleTalk Routing over ISL and IEEE 802.10 in Virtual LANs |
| No | No | No | No | No | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
CLNS and DECnet Fast Switching over PPP |
| No | No | No | No | No | No | No | Yes | Yes | Yes | Yes | Yes |
DECnet/VINES/XNS over ISL, includes:
|
| No | No | No | No | No | No | No | Yes | Yes | Yes | Yes | No |
Fast-Switched Policy Routing |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
IPX Routing over ISL Virtual LANs |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No |
VIP Distributed Switching Support for IP Encapsulated in ISL |
| No | No | No | No | No | No | No | No | No | No | No | No |
| Terminal Services | |||||||||||||
LAT |
| No | No | No | No | No | No | No | Yes | Yes | Yes | Yes | Yes |
Rlogin |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Telnet |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
TN3270 |
| No | No | No | No | No | No | No | Yes | Yes | Yes | Yes | Yes |
Virtual Templates for Protocol Translation |
| No | No | No | No | No | No | No | Yes | Yes | Yes | Yes | Yes |
X.25 PAD |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Xremote |
| No | No | No | No | No | No | No | Yes | Yes | Yes | Yes | Yes |
| WAN Optimization | |||||||||||||
ATM MIB Enhancements |
| No | No | No | No | No | No | No | No | No | No | No | No |
ATM PVC Management | (2) | No | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | Yes | No |
Bandwidth-on-demand |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Custom and priority queuing |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Dial backup |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Dial-on-demand |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Header, link and payload compression |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
PAD Enhancements |
| No | No | No | No | No | No | No | Yes | Yes | Yes | Yes | Yes |
PAD Subaddressing |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Snapshot routing |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Weighted fair queuing |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| WAN Services | |||||||||||||
Always On/Dynamic ISDN | (3) | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
ATM LAN emulation: DECnet routing and Banyan VINES support |
| No | No | No | No | No | No | Yes | Yes | Yes | Yes | Yes | No |
ATM LAN emulation: Hot Standby Router Protocol (HSRP) and Simple Server Redundancy Protocol (SSRP) |
| No | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | Yes | No |
ATM LAN emulation: Rate queues for SVC per subinterface |
| No | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | Yes | No |
ATM LAN emulation: UNI 3.1 signaling for ATM |
| No | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | Yes | No |
Bandwidth Allocation Control Protocol (BACP) |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No |
Combinet Packet Protocol (CPP) |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Dialer profiles |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Dialer Watch | (2) | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Enhanced Local Management Interface (ELMI) |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Frame Relay |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Frame Relay Enhancements |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Frame Relay MIB Extensions |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Frame Relay Router ForeSight |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Frame Relay SVC Support (DTE) |
| No | No | No | No | No | No | No | Yes | Yes | Yes | Yes | No |
Frame Relay traffic shaping |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Half bridge/half router for CPP and PPP |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
HDLC |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
IPXWAN 2.0 |
| No | No | No | No | No | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
ISDN |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No |
ISDN Advice of Charge |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
ISDN Caller ID Callback |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No | No |
ISDN Multiple Switch Type | (3) | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
ISDN NFAS |
| No | No | No | No | No | No | No | No | No | No | No | No |
Layer 2 Forwarding---Fast Switching |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No |
Leased-Line ISDN at 128 kbps |
| Yes | Yes | No | No | No | Yes | Yes | Yes | No | Yes | No | No |
Microsoft Point-to-Point Compression | (3) | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
MS Callback | (2) | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Multichassis Multilink PPP (MMP) |
| No | Yes | No | No | No | No | No | Yes | Yes | Yes | Yes | Yes |
National ISDN Switch Types for BRI and PRI (NI2) | (3) | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
PPP |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
PPP over ATM |
| No | No | No | No | No | No | No | No | No | No | No | No |
SMDS |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Stacking Home Gateway Featurette |
| No | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | Yes | Yes |
Switched 56 |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Telnet Extensions for Dialout |
| No | No | No | No | No | No | No | No | No | No | No | Yes |
Virtual Private Dial-up Network (VPDN) |
| No | No | No | No | No | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
X.25 on ISDN B-Channel |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No | Yes |
X.25 on ISDN D-Channel |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No | Yes |
X.25 Protocol Engine |
| Yes | Yes | No | No | No | Yes | Yes | Yes | No | Yes | No | Yes |
X.25 Switching between PVCs and SVCs |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No | Yes |
X.25 |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
X.28 Emulation |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No | Yes |
The following sections list the new features supported by the Cisco 2600 series in Cisco IOS Release 11.3 T.
For additional information about features listed in this section, connect to www.cisco.com and browse to the following:
Service & Support: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 11.3: Cisco IOS 11.3T New Features
To find feature information on the Documentation CD-ROM, follow this path:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 11.3: Cisco IOS 11.3T New Features
There are no new features in the Cisco 2600 series routers for Cisco IOS Release 11.3(11)T.
There are no new features in the Cisco 2600 series routers for Cisco IOS Release 11.3(10)T.
There are no new features in the Cisco 2600 series routers for Cisco IOS Release 11.3(9)T.
There are no new features in the Cisco 2600 series routers for Cisco IOS Release 11.3(8)T.
There are no new features in the Cisco 2600 series routers for Cisco IOS Release 11.3(7)T.
There are no new features in the Cisco 2600 series routers for Cisco IOS Release 11.3(6)T.
There are no new features in the Cisco 2600 series routers for Cisco IOS Release 11.3(5)T.
The following software enhancement was introduced in Release 11.3(4)T and is available for the Cisco 2600 series routers.
Prior to the IP Type of Service and Precedence for GRE Tunnels feature, at generic route encapsulation-based tunnel endpoints, the Type of Service (TOS) bits (including precedence bits) were not copied to the tunnel or GRE IP header that encapsulates the inner packet. Instead, those bits were set to zero. This was not a problem unless the intermediate routers between two tunnel endpoints honored TOS or precedence bits, in which case those settings were ignored.
With the advent of virtual private network (VPN) and QoS applications, you should copy the TOS bits when the router encapsulates the packets using GRE. Thus, intermediate routers between tunnel endpoints can take advantage of the QoS features such as weighted fair queuing (WFQ) and weighted random early detection (WRED).
The following software enhancements were introduced in Release 11.3(3)T and are available for the Cisco 2600 series routers.
In earlier Cisco IOS releases, only named authentication method lists were supported under Cisco's authentication, authorization, and accounting (AAA) network security services. With Cisco IOS Release 11.3(3)T, AAA has been extended to support both authorization and accounting named method lists. Named Method Lists for Authorization and Accounting function the same way as those for authentication: they allow you to define different methods for authorization and accounting and apply those methods a on a per-interface or per-line basis.
Always On/Dynamic ISDN (AO/DI) is an on-demand service that is designed to optimize the use of an existing Integrated Services Digital Network (ISDN) signaling channel (D channel) to transport X.25 traffic. The X.25 D channel call is placed from the subscriber to the packet data service provider. The use of PPP allows protocols to be encapsulated within the X.25 logical circuit carried by the D channel. The bearer channels (B channels) use the Multilink Protocol without the standard Q.922 and X.25 encapsulations, and invoke additional bandwidth as needed. Optionally, the Bandwidth Allocation Control Protocol (BACP) and the Bandwidth Allocation Protocol (BAP) can be used to negotiate bandwidth allocation as required.
The Automated Double Authentication feature enhances the existing double authentication feature. Previously, with the existing double authentication feature, a second level of user authentication is achieved when the user Telnets to the network access server or router and enters a username and password. Now, with automated double authentication, the user does not have to Telnet anywhere but instead responds to a dialog box that requests a username and password or PIN.
Certification Authority (CA) Interoperability is provided in support of the IP Security (IPSec) standard. CA interoperability permits Cisco IOS devices and CAs to communicate so that your
Cisco IOS device can obtain and use digital certificates from the CA. Although IPSec can be implemented in your network without the use of a CA, using a CA provides manageability and scalability for IPSec.
The Internet Key Exchange Security (IKE) Protocol is a key management protocol used in conjunction with the IPSec standard. IPSec is an IP security feature that provides robust authentication and encryption of IP packets. IPSec can be configured without IKE, but IKE enhances IPSec by providing additional features, flexibility, and ease of configuration for the IPSec standard. IKE is a hybrid protocol that implements the Oakley key exchange and Skeme key exchange inside the ISAKMP framework. (ISAKMP, Oakley, and Skeme are security standards implemented by IKE.)
Microsoft Challenge Handshake Authentication Protocol (MS-CHAP) is the Microsoft version of CHAP and is an extension to RFC 1994. Like the standard version of CHAP, MS-CHAP is used for PPP authentication; in this case, authentication occurs between a PC using Microsoft Windows NT or Microsoft Windows 95 and a Cisco router or access server acting as a network access server (NAS).
MS-CHAP differs from the standard CHAP as follows:
Depending on the security protocols you have implemented, PPP authentication using MS-CHAP can be used with or without authentication, authorization and accounting (AAA) security services. If you have enabled AAA, PPP authentication using MS-CHAP can be used in conjunction with both TACACS+ and RADIUS.
Microsoft Point-to-Point Compression (MPPC) is a scheme used to compress Point-to-Point Protocol (PPP) packets between Cisco and Microsoft client devices. The MPPC algorithm is designed to optimize bandwidth utilization in order to support multiple simultaneous connections. The MPPC algorithm uses a Lempel-Ziv (LZ) based algorithm with a continuous history buffer, called a dictionary.
The Multiple ISDN Switch Types feature allows for configuring more than one ISDN switch type per router. An ISDN switch type can be applied on a per interface basis, thus extending the existing global ISDN switch-type command to the interface level. This allows Basic Rate Interfaces (BRI) and Primary Rate Interfaces (PRI) to run simultaneously on platforms that support both interface types.
National ISDN Switch Types for Basic Rate and Primary Rate Interfaces (NI2) introduce changes to ISDN switch types for Primary Rate Interfaces (PRIs) and Basic Rate Interfaces (BRIs) as follows:
By default, DLSw+ terminates the RIF for Token Ring, terminates the LLC for all media types and forwards data only across a WAN with DLSw+ and TCP/IP headers. The RIF is a field in source-route bridged frames that indicates the SRB path the frame should take when traversing a Token Ring network. In the case of an explorer packet, the RIF is a field of the source-route bridged frame that indicates the SRB path that the SRB explorer has traversed so far. The RIF is limited to seven hop counts by the IBM standards. Because DLSw+ terminates the RIF at the virtual ring, the network's scalability increases because the hop count of the packet starts over, and the packet can traverse seven additional hops. Also, RIF termination simplifies network design because ring numbers no longer have to be unique throughout an entire enterprise. Some environments, however, do not function properly if the RIF is terminated. For that reason, DLSw+ now supports the RIF Passthru in DLSw+ feature, in which the entire source-route bridged path appears in the RIF.
In Cisco IOS Release 11.3(3)T, Cisco IOS software introduces support for Additional Vendor-Proprietary RADIUS Attributes. Remote Authentication Dial-In User Server (RADIUS) is an access server authentication, authorization, and accounting protocol originally developed by Livingston, Inc. An Internet Engineering Task Force (IETF) draft standard for RADIUS specifies a method for communicating vendor-proprietary information between the network access server and the RADIUS.
The Virtual Private Dialup Network (VPDN) Management Information Base (MIB) feature is intended to support all the tables and objects defined in the Cisco VPDN Management MIB for VPDN user sessions. VPDN system-wide information is available. This includes active VPDN tunnels, active user sessions in active VPDN tunnels, and failure history information, per username.
The VPDN syslog facility provides generic logging output for VPDN information, such as Layer 2 Forwarding Protocol (L2F). The syslog messages are generated to inform authentication or authorization errors, resource issues, and timeout events.
Cisco IOS Release 11.3(2)XA1 is the first release for the Cisco 2600 series routers. This software release includes many new software features, which are briefly described in this section.
The Enhanced ATM VC Configuration and Management feature set includes new and enhanced capabilities that allow you to create and manage ATM PVCs and SVCs with more ease and improved integrity. This feature set includes the following five subfeatures:
Dialer Watch is a backup feature that integrates dial backup with routing capabilities. Prior dial backup implementations used the following conditions to trigger backup:
Prior backup implementations might not have supplied optimum performance on some networks, such as those using Frame Relay multipoint subinterfaces or Frame Relay connections that do not support end-to-end PVC status. Dialer Watch provides reliable connectivity without relying solely on defining interesting traffic to trigger outgoing calls at the central router.
Dialer Watch uses the convergence times and characteristics of dynamic routing protocols. Integrating backup and routing features enables Dialer Watch to monitor every deleted route. By configuring a set of watched routes that define the primary interface, you are able to monitor and track the status of the primary interface as watched routes are added and deleted.
The Director Response Protocol (DRP) Server Agent enhancements are as follows:
The MS Callback feature provides client-server callback services for Microsoft Windows 95 and Microsoft Windows NT clients. MS Callback supports the Microsoft Callback Control Protocol (MSCB). MSCB is Microsoft's proprietary protocol that is used by Windows 95 and Windows NT clients. MS Callback supports negotiated PPP Link Control Protocol (LCP) extensions initiated and agreed upon by the Microsoft client. MS Callback is added to existing PPP Callback functionality. Therefore, if you configure your Cisco access server to perform PPP Callback using Cisco IOS Release 11.3(2)XA1 or later, MS Callback is automatically available.
MS Callback supports AAA security models using a local database or AAA server. MSCB uses LCP callback options with suboption type 6. The Cisco MS Callback feature supports clients with a user-specified callback number and server specified (preconfigured) callback number. MS Callback does not affect non-Microsoft machines that implement standard PPP LCP extensions as described in RFC 1570. In this scenario, MS Callback is transparent.
Protocol-Independent Multicast (PIM) Version 2 includes the following improvements over PIM Version 1:
PIM Version 1, together with the Auto-RP feature, can perform the same tasks as the PIM Version 2 BSR. However, Auto-RP is a standalone protocol, separate from PIM Version 1, and Cisco proprietary. PIM Version 2 is a standards track protocol in the Internet Engineering Task Force (IETF).
The SNMP Inform Requests feature allows routers to send inform requests to SNMP managers. Routers can send notifications to SNMP managers when particular events occur. For example, an agent router might send a message to a manager when the agent router experiences an error condition.
SNMP notifications can be sent as traps or inform requests. Traps are unreliable because the receiver does not send any acknowledgment when it receives a trap. The sender cannot determine if the trap was received. However, an SNMP manager that receives an inform request acknowledges the message with an SNMP response PDU. If the manager does not receive an inform request, it does not send a response. If the sender never receives a response, the inform request can be sent again. Thus, informs are more likely to reach their intended destination.
Voice-over IP enables a Cisco 2600 series router to carry live voice traffic (for example, telephone calls and faxes) over an IP network.
This feature provides the following benefits:
The following important notes apply to Cisco IOS Release 11.3 T.
The Token Ring interface is reset whenever IPX routing is enabled on that interface.
The Cisco implementation of AppleTalk does not forward packets with local-source and destination network addresses. This behavior does not conform to the definition of AppleTalk in the Apple Computer publication Inside AppleTalk. However, this behavior is designed to prevent any possible corruption of the AppleTalk Address Resolution Protocol (AARP) table in any AppleTalk node that is performing MAC-address gleaning.
As of Release 11.3(2)XA1, the command bridge group multicast-source is no longer available. This command was removed to comply with the source-route-transparent (SRT) bridging implementation.
Due to a production problem, many source-route bridging commands were omitted from the printed version of the Cisco IOS Software Command Summary (78-4746-XX). For complete documentation of all source-route bridging commands, refer to the Bridging and IBM Networking Command Reference (78-4743-XX). You can also obtain the most current documentation on CCO and the Documentation CD-ROM.
A new authorization feature was added in Release 11.3(1) that allows for separate configuration and authorization of Multilink PPP. This can cause MLP authorization to fail in TACACS+ servers that do not include the relevant authorization permissions in the configuration. For TACACS+, the following attribute-value (AV) pair should be added for all users who are allowed to negotiate Multilink PPP:
service = ppp protocol = multilink {
For information about configuring VPDN, access the Cisco Documentation CD-ROM. Using a web browser, follow this path:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 11.3: Cisco IOS 11.3 Configuration Guides, Command References: Dial Solutions Configuration Guide: Virtual Private Dialup Networks
To access the VPDN command reference, follow this path:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 11.3: Cisco IOS 11.3 Configuration Guides, Command References: Dial Solutions Command Reference: Virtual Private Dialup Networks: Virtual Private Dialup Network Commands
Cisco is conducting an internal review of the build and distribution processes associated with its 40-bit Cisco IOS cryptographic products. To provide seamless access to Cisco IOS 40-bit encryption capability, Cisco will provide access to the most current 40-bit encryption images, beginning with Cisco IOS Release 11.2 (12), 11.2(12)P, and 11.3(2). The following 40-bit encryption images will be indefinitely unavailable:
This review is not related to any new or previously unreported caveats. The information gathered in the review will be used to implement new automated development and order-processing applications.
For a list of software caveats that apply to 11.3 T, refer to Caveats for Cisco IOS Release 11.3 T document that accompanies these release notes. This document lists severity 1 and 2 caveats for 11.3 T. Severity 1 caveats are the most serious caveats; severity 2 caveats are less serious. Caveats describe unexpected behavior or defects in Cisco IOS software releases. The caveats document is also located on CCO and the Documentation CD-ROM.
Because Release 11.3 T is based on Release 11.3 all caveats in Release 11.3 are also in Release 11.3 T.
If you have an account with CCO, you can use Bug Navigator II to find caveats of any severity for any release. Bug Navigator II is at http://www.cisco.com/support/bugtools, or from CCO, select Service & Support: Online Technical Support: Software Bug Toolkit II.
The following sections describe the documentation available for the Cisco 2600 series. Typically, these documents consist of hardware installation guides, software installation guides, Cisco IOS configuration and command references, system error messages, and other documents, which are updates to Cisco IOS documentation. Documentation is available as printed manuals or electronic documents, except for feature modules, which are only available online.
The most up-to-date documentation can be found on the Web at Cisco Connection Online (CCO) and the Documentation CD-ROM. These electronic documents may contain updates and modifications made after the hardcopy documents were printed.
Use these release notes with the documents listed in the following sections:
The following documents are specific to Release 11.3 T. They are located on CCO and the Documentation CD-ROM:
Feature modules describe new features supported by Release 11.3 T and are an update to the Cisco IOS documentation set. They consist of a brief overview of the feature, benefits, configuration tasks, and a command reference. As updates, the feature modules are available online only. The feature module information is included in the next printing of the Cisco IOS documentation set.
To reach the feature modules on CCO, follow this path:
Service & Support: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 11.3: Cisco IOS 11.3T New Features
To reach the feature modules on the Documentation CD-ROM, follow this path:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 11.3: Cisco IOS 11.3 T New Features
The documents listed below are available for the Cisco 2600. These documents are also available online at Cisco Connection Online (CCO) and on the Documentation CD-ROM.
To access Cisco 2600 documentation on CCO, follow this path:
Service & Support: Documentation Home Page: Access Servers and Access Routers: Modular Access Routers: Cisco 2600 Series Routers
To reach Cisco 2600 documentation on the Documentation CD-ROM, follow this path:
Cisco Product Documentation: Access Servers and Access Routers: Modular Access Routers: Cisco 2600 Series Routers
The Cisco IOS software documentation set consists of the Cisco IOS configuration guides, Cisco IOS command references, and several other supporting documents. These documents are shipped with your order in electronic form on the Documentation CD-ROM, unless you specifically ordered the printed versions.
Each module in the Cisco IOS documentation set consists of two books: a configuration guide and a corresponding command reference. Chapters in a configuration guide describe protocols, configuration tasks, Cisco IOS software functionality, and comprehensive configuration examples. Chapters in a command reference provide complete command syntax information. Each configuration guide can be used in conjunction with its corresponding command reference.
On CCO and the Documentation CD-ROM, two master hot-linked documents provide information for the Cisco IOS software documentation set: configuration guides and command references.
To reach these documents on CCO, follow this path:
Service & Support: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 11.3: Cisco IOS Release 11.3 Configuration Guides, Command References
To reach these documents on the Documentation CD-ROM, follow this path:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 11.3: Cisco IOS Release 11.3 Configuration Guides, Command References
Table 6 describes the contents of the Cisco IOS Release 11.3 software documentation set. The document set is available in electronic form and also in printed form upon request.
To reach the Cisco IOS documentation set on CCO, follow this path:
Service & Support: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 11.3: Cisco IOS 11.3 Configuration Guides, Command References
To reach the Cisco IOS documentation set on the Documentation CD-ROM, follow this path:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 11.3: Cisco IOS 11.3 Configuration Guides, Command References
.
| Books | Chapter Topics |
|---|---|
| Configuration Fundamentals Overview |
| IP Addressing |
| AppleTalk |
| Apollo Domain |
| ATM |
| AAA Security Services |
| Interface Configurations |
| Dial-In Port Setup |
| Switching Paths for IP Networks |
| Transparent Bridging |
| Voice over IP |
| Classification |
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For service and support for a product purchased from a reseller, contact the reseller. Resellers offer a wide variety of Cisco service and support programs, which are described in the section "Service and Support" in the information packet shipped with your product.
For service and support for a product purchased directly from Cisco, use CCO.
The following URL contains links and helpful tips on configuring your Cisco products: http://www.cisco.com/kobayashi/serv_tips.shtml. This URL is subject to change without notice. If it changes, point your browser to CCO and click on this path:
Products & Technologies: Products: Technical Tips
Cisco Connection Online (CCO) is Cisco Systems' primary, real-time support channel. Maintenance customers and partners can self-register on CCO to obtain additional information and services.
Available 24 hours a day, 7 days a week, CCO provides a wealth of standard and value-added services to Cisco's customers and business partners. CCO services include product information, product documentation, software updates, release notes, technical tips, the Bug Navigator, configuration notes, brochures, descriptions of service offerings, and download access to public and authorized files.
CCO serves a wide variety of users through two interfaces that are updated and enhanced simultaneously: a character-based version and a multimedia version that resides on the World Wide Web (WWW). The character-based CCO supports Zmodem, Kermit, Xmodem, FTP, and Internet e-mail, and it is excellent for quick access to information over lower bandwidths. The WWW version of CCO provides richly formatted documents with photographs, figures, graphics, and video, as well as hyperlinks to related information.
You can access CCO in the following ways:
For a copy of CCO's Frequently Asked Questions (FAQ), contact cco - help@cisco.com. For additional information, contact cco - team@cisco.com.
Cisco documentation and additional literature are available in a CD-ROM package, which ships with your product. The Documentation CD-ROM, a member of the Cisco Connection Family, is updated monthly. Therefore, it might be more current than printed documentation. To order additional copies of the Documentation CD-ROM, contact your local sales representative or call customer service. The CD-ROM package is available as a single package or as an annual subscription. You can also access Cisco documentation on the World Wide Web at http://www.cisco.com, http://www-china.cisco.com, or http://www-europe.cisco.com.
If you are reading Cisco product documentation on the World Wide Web, you can submit comments electronically. Click Feedback in the toolbar and select Documentation. After you complete the form, click Submit to send it to Cisco. We appreciate your comments.
Posted: Wed Jul 28 15:29:37 PDT 1999
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