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Release Notes for Cisco 1000 Series Routers for Cisco IOS Release 11.2 P

Release Notes for Cisco 1000 Series Routers for Cisco IOS Release 11.2 P

July 17, 2000

Note   You can find the most current Cisco IOS documentation on Cisco Connection Online (CCO ). These electronic documents may contain updates and modifications made after the hardcopy documents were printed.

These release notes for the Cisco 1000 series routers describe the enhancements provided in Cisco IOS Release 11.2 P. These release notes are updated as needed.

For a list of the software caveats that apply to Cisco IOS Release 11.2 P , see Caveats for Cisco IOS Release  11.2 P that accompanies these release notes. The caveats document is updated for every maintenance release and is located on Cisco Connection Online (CCO)  and the Documentation CD-ROM.

Use these release notes with Cross-Platfor m Release Notes for Cisco  IOS Release 11.2 on CCO  and the Documentation CD-ROM.

Contents

These release notes describe the following topics:

System Requirements

This section describes the system requirements for Cisco IOS Release 11.2 P :

Memory Requirements


Table 1: Memory Requirements for the Cisco 1000 Series
Platforms Image Name Software Image Recommended Flash Memory Recommended DRAM Memory Runs from
Cisco 1003 and Cisco 1004

IP

c1000-y-mz

2/4 MB optional Flash

81 MB RAM

RAM

IP Plus2

c1000-bnsy-mz

2/4 MB optional Flash

8 MB RAM

RAM

IP Plus 40

c1000-bnsy40-mz

2/4 MB optional Flash

8 MB RAM

RAM

IP Plus 56

c1000-bnsy56-mz

2/4 MB optional Flash

8 MB RAM

RAM

IP/IPX

c1000-ny-mz

2/4 MB optional Flash

8 MB RAM

RAM

IP/AT

c1000-by-mz

2/4 MB optional Flash

8 MB RAM

RAM

IP/IPX/AT

c1000-bny-mz

2/4 MB optional Flash

8 MB RAM

RAM

IP/IPX/AT Plus

c1000-bnsy-mz

4 MB Flash3

8 MB RAM

RAM

IP/IPX/AT Plus 40

c1000-bnsy40-mz

4 MB Flash3

8 MB RAM

RAM

IP/IPX/AT Plus 56

c1000-bnsy56-mz

4 MB Flash3

8 MB RAM

RAM

Cisco 1005

IP

c1005-y-mz

2/4 MB optional Flash

81 MB RAM

RAM

IP Plus4

c1005-bnsy-mz

4 MB Flash3

8 MB RAM

RAM

IP Plus 40

c1005-bnsy40-mz

4 MB Flash3

8 MB RAM

RAM

IP Plus 56

c1005-bnsy56-mz

4 MB Flash3

8 MB RAM

RAM

IP/IPX

c1005-ny-mz

2/4 MB optional Flash

8 MB RAM

RAM

IP/AT

c1005-by-mz

2/4 MB optional Flash

81 MB RAM

RAM

IP/IPX/AT

c1005-bny-mz

2/4 MB optional Flash

8 MB RAM

RAM

IP/IPX/AT Plus

c1005-bnsy-mz

4 MB Flash3

8 MB RAM

RAM

IP/IPX/AT Plus 40

c1005-bnsy40-mz

4 MB Flash3

8 MB RAM

RAM

IP/IPX/AT Plus 56

c1005-bnsy56-mz

4 MB Flash3

8 MB RAM

RAM

IP/OSPF/PIM

c1005-y2-mz

2/4 MB optional Flash

8 MB RAM

RAM

IP/Async

c1005-qy-mz

2/4 MB optional Flash

81 MB RAM

RAM

IP/IPX/Async

c1005-nqy-mz

2/4 MB optional Flash

8 MB RAM

RAM

1Only 4 MB DRAM is required for Releases 11.2(1) through 11.2(6).
2Plus for the Cisco 1003 and Cisco 1004 includes OSPF, PIM, SMRP, NLSP, ATIP, AppleTalk AURP, RSVP, and NAT.
3Only 2 MB of Flash memory is required for Releases 11.2(1) through 11.2(6).
4Plus for the Cisco 1005 includes OSPF, PIM, NLSP, SMRP, AppleTalk IP, AppleTalk AURP, Frame Relay SVC, RSVP, and NAT.

Hardware Supported

Cisco IOS Release 11.2 P supports the Cisco 1000 series routers:

For detailed descriptions of the new hardware features, see "New and Changed Information" section.


Table 2: Supported Interfaces for the Cisco 1000 Series
Interface, Network Module, or Data Rate Product Description Platforms Supported
LAN Interfaces

Ethernet (10BaseT)

Cisco 1000 series

Data Rates

56/64/128 kbps

Cisco 1000 series

1.544/2.048 Mbps

Cisco 1005 only

WAN Interfaces

EIA/TIA-232

Cisco 1005 only

EIA/TIA-449

Cisco 1005 only

EIA-530

Cisco 1005 only

X.21

Cisco 1005 only

V.35

Cisco 1005 only

ISDN BRI

Cisco 1003 and Cisco 1004

Determining the Software Release

To determine the version of Cisco IOS software running on your Cisco 1000 series router, log in to the router and enter the show version EXEC command:

    router> show version
Cisco Internetwork Operating System Software 
IOS (tm) 11.2 P Software (C1000-BNSY-MZ), Version 11.2(23)P, RELEASE SOFTWARE

Upgrading to a New Software Release

For general information about upgrading to a new software release, see Cisco  IOS Upgrade Ordering Instructions located at:

http://www. cisco.com/warp/ public/cc/cisco/ mkt/ios/prodlit /957_pp.htm

Feature Set Tables

The Cisco IOS software is packaged in feature sets consisting of software images--depending on the platform. Each feature set contains a specific set of Cisco IOS features.

Cisco IOS Release 11.2 P supports the same feature sets as Cisco IOS Release 11.2, but Release 11.2 P can include new features supported by the Cisco 1000 series routers.

Caution Cisco IOS images with strong encryption (including, but not limited to 168-bit (3DES) data encryption feature sets) are subject to United States government export controls and have limited distribution. Strong encryption images to be installed outside the United States are likely to require an export license. Customer orders may be denied or subject to delay due to United States government regulations. When applicable, purchaser/user must obtain local import and use authorizations for all encryption strengths. Please contact your sales representative or distributor for more information, or send an e-mail to export@cisco.com.

Table 3 and Table 4 list the features and feature sets supported by the Cisco 1000 series in Cisco IOS Release 11.2 P. Both use the following conventions:

Note   These feature set tables only contain a selected list of features. These tables are not cumulative-- nor do they list all the features in each image.


Table 3: Feature List by Feature Set for the Cisco 1000 Series, Part 1
Feature Set
 Feature IP Routing1 IP/IPX Routing1 IP/AppleTalk Routing1 IP/IPX/AppleTalk Routing
 LAN Support

AppleTalk 1 and 22

-

-

Basic

Basic

GRE

Basic

Basic

Basic

Basic

Integrated routing and bridging (IRB)3

Basic

Basic

Basic

Basic

IP

Basic

Basic

Basic

Basic

Novell IPX4

-

Basic

-

Basic

Transparent and translational bridging5

Basic

Basic

Basic

Basic

 WAN Services6

Dialer profiles

Basic

Basic

Basic

Basic

Frame Relay (Cisco 1005 only)

Basic

Basic

Basic

Basic

Frame Relay SVC Support (DTE) (Cisco 1005 only)

Plus

Plus

Plus

Plus

Frame Relay traffic shaping
(Cisco 1005 only)

Basic

Basic

Basic

Basic

HDLC

Basic

Basic

Basic

Basic

ISDN (Cisco 1003 and Cisco 1004)7

Basic

Basic

Basic

Basic

PPP

Basic

Basic

Basic

Basic

SMDS (Cisco 1005 only)

Basic

Basic

Basic

Basic

Switched 56 (Cisco 1005 only)

Basic

Basic

Basic

Basic

X.25

Basic

Basic

Basic

Basic

SLIP (Cisco 1005 only)

Basic

Basic

-

-

 WAN Optimization

Bandwidth-on-demand
(Cisco 1003 and Cisco 1004)

Basic

Basic

Basic

Basic

Custom and priority queuing

Basic

Basic

Basic

Basic

Dial backup

Basic

Basic

Basic

Basic

Dial-on-demand8

Basic

Basic

Basic

Basic

Header9 and link compression10
(Cisco 1003 and Cisco 1004)

Basic

Basic

Basic

Basic

Payload compression (Cisco 1005 only)

Basic

Basic

Basic

Basic

Snapshot routing11

Basic

Basic

Basic

Basic

Weighted fair queuing

Basic

Basic

Basic

Basic

 IP Routing

Enhanced IGRP

Basic

Basic

Basic

Basic

Enhanced IGRP Optimizations

Basic

Basic

Basic

Basic

IGRP

Basic

Basic

Basic

Basic

Network Address Translation Table (NAT)

Plus

Plus

Plus

Plus

On Demand Routing (ODR)

Basic

Basic

Basic

Basic

OSPF

Plus

Plus

Plus

Plus

OSPF Not-So-Stubby-Areas (NSSA)

Plus

Plus

Plus

Plus

OSPF On Demand Circuit (RFC 1793)

Plus

Plus

Plus

Plus

PIM

Plus

Plus

Plus

Plus

RIP

Basic

Basic

Basic

Basic

RIP Version 2

Basic

Basic

Basic

Basic

 Other Routing

AURP

-

-

Plus

Plus

IPX RIP

-

Basic

-

Basic

NLSP

Plus

Plus

Plus

Plus

SMRP

Plus

Plus

Plus

Plus

RTMP

-

-

Basic

Basic

 Multimedia and Quality of Service

Random Early Detection (RED)

Plus

Plus

Plus

Plus

Resource Reservation Protocol (RSVP)

Plus

Plus

Plus

Plus

 Management

ClickStart

Basic

Basic

Basic

Basic

HTTP Server

Basic

Basic

Basic

Basic

SNMP

Basic

Basic

Basic

Basic

Telnet

Basic

Basic

Basic

Basic

 Security

Access lists

Basic

Basic

Basic

Basic

Access security

Basic

Basic

Basic

Basic

Extended access lists

Basic

Basic

Basic

Basic

Lock and key

Basic

Basic

Basic

Basic

Router authentication and network layer encryption (40-bit or export controlled 56-bit DES)

Encrypt

Encrypt

Encrypt

Encrypt

TACACS+12

Basic

Basic

Basic

Basic

1The IP, IP/IPX, and IP/AppleTalk feature sets are not available with Plus, Plus 40, or Plus 56 feature set options in Cisco IOS Release 11.2.
2Includes AppleTalk load balancing.
3IRB supports IP, IPX, and AppleTalk; it is supported for transparent bridging, but not for SRB; it is supported on all media-type interfaces except X.25 and ISDN bridged interfaces; and IRB and concurrent routing and bridging (CRB) cannot operate at the same time.
4The Novell IPX feature includes display SAP by name, IPX Access Control List violation logging, and plain-English IPX access lists.
5Transparent and translational bridging is fast switched. This enhancement is on by default, but can be disabled.
6Cisco 1005 "WAN Services" offers three feature set options: Option 1 includes HDLC, PPP, SDMS, and Frame Relay, but not X.25, and is available on all feature sets; Option 2 includes X.25 only, and is available with the IP/IPX, IP/AppleTalk, and IP/IPX/AppleTalk feature sets; and Option 3 includes Async, PPP, and SLIP and is available with the IP and IP/IPX features sets.
7ISDN support includes calling line identification (CLI/ANI), ISDN subaddressing, and applicable WAN optimization features.
8Dial-on-demand is available for the Cisco 1005 with "WAN Services" option only. See footnote 7.
9IPX header compression (RFC 1553) is available in the feature sets that support IPX.
10X.25 and Frame Relay payload compression. Payload compression is available for the Cisco 1005.
11Snapshot routing is not included for the Cisco 1005.
12TACACS+ Single Connection and TACACS+ SENDAUTH enhancements are supported.


Table 4: Feature List by Feature Set for the Cisco 1000 Series, Part 2
Feature Set
 Feature IP/OSPF/PIM Routing1 IP/Async1 IP/IPX/Async1
 LAN Support

AppleTalk 1 and 2

-

-

-

GRE

Basic

Basic

Basic

Integrated routing and bridging (IRB)2

Basic

Basic

Basic

IP

Basic

Basic

Basic

Novell IPX3

-

-

Basic

Transparent and translational bridging4

Basic

Basic

Basic

 WAN Services5

Async

-

Basic

Basic

Dialer profiles

Basic

Basic

Basic

Frame Relay

Basic

-

-

Frame Relay traffic shaping

Basic

-

-

HDLC

Basic

-

-

PPP6

Basic

Basic

Basic

SMDS

Basic

-

-

Switched 56

Basic

-

-

X.257

Basic

-

-

SLIP

-

Basic

Basic

 WAN Optimization

Custom and priority queuing

Basic

Basic

Basic

Dial-on-demand8

Basic

Basic

Basic

Header9, link and payload compression 10

Basic

Basic

Basic

Snapshot routing11

Basic

Basic

Basic

Weighted fair queuing

Basic

Basic

Basic

 IP Routing

Enhanced IGRP

Basic

Basic

Basic

Enhanced IGRP Optimizations

Basic

Basic

Basic

IGRP

Basic

Basic

Basic

On Demand Routing (ODR)

Basic

Basic

Basic

OSPF

Basic

-

-

OSPF Not-So-Stubby-Areas (NSSA)

Basic

-

-

OSPF On Demand Circuit (RFC 1793)

Basic

-

-

PIM

Basic

-

-

RIP

Basic

Basic

Basic

RIP Version 2

Basic

Basic

Basic

 Other Routing

IPX RIP

-

-

Basic

 Management

ClickStart

Basic

Basic

Basic

HTTP Server

Basic

Basic

Basic

SNMP

Basic

Basic

Basic

Telnet

Basic

Basic

Basic

 Security

Access lists

Basic

Basic

Basic

Access security

Basic

Basic

Basic

Extended access lists

Basic

Basic

Basic

Kerberos V client support

-

-

-

Lock and key

Basic

Basic

Basic

TACACS+12

Basic

Basic

Basic

1These feature sets are not available with the Plus, Plus 40, or Plus 56 feature set options in Cisco IOS Release 11.2.
2IRB supports IP, IPX, and AppleTalk; it is supported for transparent bridging, but not for SRB; it is supported on all media-type interfaces except X.25 and ISDN bridged interfaces; and IRB and concurrent routing and bridging (CRB) cannot operate at the same time.
3The Novell IPX feature includes display SAP by name, IPX Access Control List violation logging, and plain-English IPX access lists.
4Transparent and translational bridging is fast switched. This enhancement is on by default, but can be disabled.
5Cisco 1005 "WAN Services" offers three feature set options: Option 1 includes HDLC, PPP, SDMS, and Frame Relay, but not X.25, and is available on all feature sets; Option 2 includes X.25 only, and is available with the IP/IPX, IP/AppleTalk, and IP/IPX/AppleTalk feature sets; and Option 3 includes async, PPP, and SLIP and is available with the IP, IP/IPX features sets.
6PPP includes support for LAN protocols supported by the feature set, address negotiation, PAP and CHAP authentication, Multilink PPP, and PPP compression.
7X.25 is available for the Cisco 1005 only and is available by itself in "WAN Services" Option 2 for the following feature sets: IP/IPX, IP/AppleTalk, and IP/IPX/AppleTalk.
8Dial-on-demand is available for the Cisco 1005 with "WAN Services" option only. See footnote 5 above.
9IPX header compression (RFC 1553) is available in the feature sets that support IPX.
10X.25 and Frame Relay payload compression.
11Snapshot routing is not included for the Cisco 1005.
12TACACS+ Single Connection and TACACS+ SENDAUTH enhancements are supported.

New and Changed Information

The following sections list the new hardware and software features supported by the Cisco 1000 series routers for Release 11.2 P .

New Software Features in Cisco IOS Release 11.2(1)

The following new software features are supported by the Cisco 1000 series routers for Release 11.2(1) and later. They are divided into the following categories:

Routing Protocols

This section describes routing protocol features that are new in the initial release of Cisco IOS Release 11.2.

IP Protocol and Feature Enhancements

The following new IP protocol software features are available:

A stub router is the peripheral router in a hub-and-spoke network topology. Stub routers commonly have a WAN connection to the hub router and a small number of LAN network segments (stub networks) that are connected directly to the stub router. To provide full connectivity, the hub routers can be statically configured to recognize that a particular stub network is reachable via a specified access router. However, if there are multiple hub routers, many stub networks, or asynchronous connections between hubs and spokes, the overhead required to statically configure knowledge of the stub networks on the hub routers becomes too great.
ODR simplifies installation of IP stub networks in which the hub routers dynamically maintain routes to the stub networks. This is accomplished without requiring the configuration of an IP routing protocol at the stub routers. With ODR, the stub advertises IP prefixes corresponding to the IP networks that are configured on its directly connected interfaces. Because ODR advertises IP prefixes, rather than IP network numbers, ODR is able to carry Variable Length Subnet Mask (VLSM) information.
Once ODR is enabled on a hub router, the router begins installing stub network routes in the IP forwarding table. The hub router can also be configured to redistribute these routes into any configured dynamic IP routing protocols. IP does not need to be configured on the stub router. With ODR, a router is automatically considered to be a stub when no IP routing protocols have been configured on it.
The routing protocol that ODR generates is propagated between routers using Cisco Discovery Protocol (CDP). Thus, ODR is partially controlled by the configuration of CDP. Specifically,
It is recommended that IP filtering be used to limit the network prefixes that the hub router permits to be learned dynamically through ODR. If the interface has multiple logical IP networks configured (via the IP secondary command), only the primary IP network is advertised through ODR.

Open Shortest Path First (OSPF) Enhancements

The following features have been added to Cisco OSPF software:

The feature allows the consolidation on a single routing protocol and the benefits of the OSPF routing protocol across the entire network, without incurring excess connection costs.
If the router is part of a point-to-point topology, only one end of the demand circuit needs to be configured for OSPF On-Demand Circuit operation. In point-to-multipoint topologies, all appropriate routers must be configured with OSPF On-Demand Circuit. All routers in an area must support this feature--that is, be running Cisco IOS Software Release 11.2 or greater.
OSPF Not-So-Stubby-Areas (NSSA) defines a more flexible, hybrid method, whereby stub areas can import external OSPF routes in a limited fashion, so that OSPF can be extended across the stub to backbone connection.
NSSA enables OSPF to be extended across a stub area to backbone area connection to become logically part of the same network.

Border Gateway Protocol version 4 (BGP4) Enhancements

The following features have been added to Cisco BGP4 software:

Network Address Translation

Network Address Translation (NAT) provides a mechanism for a privately addressed network to access registered networks, such as the Internet, without requiring a registered subnet address. This eliminates the need for host renumbering and allows the same IP address range to be used in multiple intranets.

With NAT, the privately addressed network (designated as "inside") continues to use its existing private or obsolete addresses. These addresses are converted into legal addresses before packets are forwarded onto the registered network (designated as "outside"). The translation function is compatible with standard routing; the feature is required only on the router connecting the inside network to the outside domain.

Translations can be static or dynamic. A static address translation establishes a one-to-one mapping between the inside network and the outside domain. Dynamic address translations are defined by describing the local addresses to be translated and the pool of addresses from which to allocate outside addresses. Allocation is done in numeric order and multiple pools of contiguous address blocks can be defined.

NAT Benefits:

Because the addressing scheme on the inside network might conflict with registered addresses already assigned within the Internet, NAT can support a separate address pool for overlapping networks and translate as appropriate.

Applications that use raw IP addresses as a part of their protocol exchanges are incompatible with NAT. Typically, these are less common applications that do not use fully qualified domain names.

Named IP Access Control List

The Named IP Access Control List (ACL) feature gives network managers the option of using names for their access control lists. Named IP ACL function similarly to their numbered counter-parts, except that they use names instead of numbers. This feature also includes a new configuration mode, which supports addition and deletion of single lines in a multiline access control list.

This feature eliminates some of the confusion associated with maintaining long access control lists. Meaningful names can be assigned, making it easier to remember which service is controlled by which access control list. Moreover, this feature removes the limit of 100 extended and 99 standard access control lists, so that additional IP access control lists can be configured.

The new configuration feature allows a network manager to edit access control lists, rather than re-creating the entire list. Currently, only packet and route filters can use Named IP ACL. Also, named IP ACLs are not backward-compatible with earlier releases of Cisco IOS software. Named IP ACLs are not currently supported with Distributed Fast Switching.

Multimedia and Quality of Service

The following features have been added to Cisco multimedia and quality of service software:

RSVP requires both a network implementation and a client implementation. Applications need to be RSVP-enabled to take advantage of RSVP functionality. Currently, Precept provides an implementation of RSVP for Windows-based PCs. Companies such as Sun and Silicon Graphics have demonstrated RSVP on their platforms. Several application developers are planning to take advantage of RSVP in their applications.
RED is enabled on a per-interface basis. It "throttles back" lower-priority traffic first, allowing higher-priority traffic (as designated by an RSVP reservation or the IP precedence value) to continue unabated. RED works with RSVP to maintain end-to-end quality of service during peak traffic loads. Congestion is avoided by selectively dropping traffic during peak load periods. This is performed in a manner designed to damp out waves of sessions going through TCP slow start.
Existing networks can be upgraded to better handle RSVP and priority traffic. Additionally, RED can be used in existing networks to manage congestion more effectively on higher-speed links where fair queuing is expensive.
Exercise caution when enabling RED on interfaces that support multiprotocol traffic (in addition to TCP/IP), such as IPX or AppleTalk. RED is not designed for use with these protocols and could have deleterious affects. RED is a queuing technique; it cannot be used on the same interface as other queuing techniques, such as Standard Queuing, Custom Queuing, Priority Queuing, or Fair Queuing.
Topologies that have high-speed links feeding into lower-speed links--such as a central site to a remote or branch sites--often experience bottlenecks at the remote end because of the speed mismatch. Generic Traffic Shaping helps eliminate the bottleneck situation by throttling back traffic volume at the source end.
Routers can be configured to transmit at a lower bit rate than the interface bit rate. Service providers or large enterprises can use the feature to partition, for example, T1 or T3 links into smaller channels to match service ordered by customers.
Generic Traffic Shaping implements a Weighted Fair Queuing (WFQ) on an interface or subinterface to allow the desired level of traffic flow. The feature consumes router memory and CPU resources, so it must be used judiciously to regulate critical traffic flows while not degrading overall router performance.
Multiprotocol Routing

The following enhancement has been made to Cisco multiprotocol routing:

These enhancements are particularly applicable in networking environments having many low-speed links (typically in hub-and-spoke topologies); in Non-Broadcast-Multiple-Access (NBMA) wide-area networks such as Frame Relay, ATM, or X.25 backbones; and in highly redundant, dense router-router peering configurations. It should be noted that the basic Enhanced IGRP routing algorithm that exhibits very fast convergence and guaranteed loop-free paths has not changed, so there are no backwards compatibility issues with earlier versions of Cisco IOS software.
Switching Features

The following feature has been added to Cisco switching software:

The ability to route and bridge the same protocol on multiple independent sets of interfaces of the same Cisco IOS software-based router makes it possible to route between these routed and the bridged domains within that router. IRB provides a scalable mechanism for integration of Layer 2 and Layer 3 domains within the same device.
Integrated routing and bridging provides:
Note that:

Desktop Protocols

This section describes the desktop protocol features that are new in the initial release of Cisco IOS Release 11.2.

AppleTalk Features

The following feature has been added to Cisco AppleTalk software:

Novell Features

The following features have been added to Cisco Novell software:

This feature allows logging of:
Matching packets and logging-enabled ACLs are sent at the process level. Router logging facilities use the IP protocol.

Wide-Area Networking Features

This section describes the wide-area networking features that are new in the initial release of Cisco IOS Release 11.2:

ISDN/DDR Enhancements

The following features have been added to Cisco ISDN and DDR software:

MMP is based on the concept of a stack group--a group of routers or access servers that operate as a group when receiving MLP calls. Any member of the stack group can answer any call into the single access number applied to all WAN interfaces. Typically, the access number corresponds to a telco hunt group. Cross-platform aggregation is performed via tunneling between members of a stack group using the Level 2 Forwarding (L2F) protocol, a draft IETF standard.
MMP is flexible and scalable. Because the L2F protocol is IP based, members of a stack group can be connected over many types of LAN or WAN media. stack group size can be increased by increasing the bandwidth available to the L2F protocol--for example, by moving from shared to switched Ethernet.
With Multichassis Multilink PPP:
Service providers who wish to offer private dial-up network services can use VPDN to provide a single telephone number for all their client organizations. A customer can use dial-up access to a local point of presence where the access server identifies the customer by PPP username. The PPP username is also used to establish a home gateway destination. When the home gateway is identified, the access server builds a secure tunnel across the service provider backbone to the customer home gateway. The PPP session is also transported to this home gateway, where local security measures can ensure the person is allowed access to the network behind the home gateway. Of special interest to service providers is the independence of VPDN from WAN technology. Because L2F is TCP/IP-based, it can be used over any type of service provider backbone network.
Each dialer profile uses an Interface Descriptor Block (IDB) distinct from the IDB of the physical interface used to place or receive calls. When a call is established, both IDBs are bound together so that traffic can flow. As a result, dialer profiles use more IDBs than normal DDR. This initial release of dialer profiles does not support Frame Relay, X.25, or Link Access Procedure Balance (LAPB) encapsulation on DDR links or Snapshot Routing capabilities.
A large installed base of early Combinet product users cannot upgrade to later software releases that support interoperability standards such as PPP. With CPP support, these users can integrate their existing product base into new Cisco IOS software-based internetworks.
CPP does not provide many of the functions available in the Cisco implementation of the PPP standards. These functions include address negotiation and support for protocols like AppleTalk. Where possible, Cisco recommends that customers migrate to software that supports PPP.
Frame Relay Enhancements

The following features have been added to Cisco Frame Relay software:

Frame Relay SVCs offer cost savings via usage-based pricing instead of fixed pricing for a PVC connection, dynamic modification of network topologies with any-to-any connectivity, dynamic network bandwidth allocation or bandwidth-on-demand for large data transfers such as FTP traffic, backup for PVC backbones, and conservation of resources in private networks.
To use Frame Relay SVCs, Frame Relay SVC must be supported by the Frame Relay switches used in the network. Also, a Physical Local Loop Connection, such as a leased or dedicated line, must exist between the router (DTE) and the local Frame Relay switch.
The Frame Relay protocol defines several parameters that are useful for managing network traffic congestion. These include Committed Information Rate (CIR), Forward/Backward Explicit Congestion Notification (FECN/BECN), and Discard Eligibility (DE) bit. Cisco already provides support for FECN for DECnet and OSI, BECN for Systems Network Architecture (SNA) traffic using direct LLC2 encapsulation via RFC 1490, and DE bit support. The Frame Relay Traffic Shaping feature builds upon this support by providing the following three capabilities:
Frame Relay Traffic Shaping:
The three capabilities of the Traffic Shaping for Frame Relay feature require the router to buffer packets to control traffic flow and compute data rate tables. Because of this router memory and CPU utilization, these features must be used judiciously to regulate critical traffic flows while not degrading overall Frame Relay performance.

Security Features

This section describes the security features that are new in the initial release of Cisco IOS Release 11.2.

New Features
This feature can be used to build multiprotocol Virtual Private Networks (VPNs), using encrypted Generic Routing Encapsulation (GRE) tunnels. It can also be used to deploy secure telecommuting services, intranet privacy, and virtual collaborative or community-of-interest networks.
All components of this feature are subject to U.S. Department of Commerce export regulations. Encryption is currently IP only, though it does support multiprotocol GRE tunnels. This feature is most appropriately deployed in a relatively small number of routers, with a logically flat or star-shaped encryption topology. Load-sharing of the encryption/decryption function is not supported. Without a Certification Authority (CA), the one-time authentication effort increases exponentially with the number of routers. Router authentication requires the network administrator to compare the hashes produced by the routers once during initial configuration. This version of encryption is not IPSEC compliant.
TACACS+ Enhancements

The following features have been added to Cisco Terminal Access Controller Access Control System (TACACS)+ software:

Single Connection is an optimization whereby the network access server maintains a single TCP connection to one or more TACACS+ daemons. The connection is maintained in an open state for as long as possible, instead of being opened and closed each time a session is negotiated. It is expected that Single Connection yields performance improvements on a suitably constructed daemon.
Currently, only the CiscoSecure daemon V1.0.1 supports Single Connection. The network access server must be explicitly configured to support a Single Connection daemon. Configuring Single Connection for a daemon that does not support this feature generates errors when TACACS+ is used.
The network access server can support both SENDAUTH and SENDPASS simultaneously. It detects if the daemon is able to support SENDAUTH and, if not, uses SENDPASS instead. This negotiation is virtually transparent to the user, with the exception that the down-rev daemon can log the initial SENDAUTH packet as unrecognized. SENDAUTH functionality requires support from the daemon, as well as from the network access server.

Network Management

This section describes the network management features that are new in the initial release of Cisco IOS Release 11.2.

New Features
MIBs Supported

The following MIB support has been added:

Important Notes

The following sections contain important notes about Cisco IOS Release 11.2 P that can apply to the Cisco 1000 series routers.

Traffic Shaping over Frame Relay

Traffic shaping over Frame Relay is available only in Release 11.2(8) and above. Refer to software defect ID CSCdi60734 and CSCdi 88662.

LAN Extension

The LAN extension interface does not function correctly in Release 11.2(1). The behavior is that the LAN extension NCP negotiates and sets the LAN extension interface state to "up" and the show controller lex number command displays the message "No inventory message received from LAN Extender." Turning on the LAN extension RCMD debugging shows that every remote command is being rejected with the message "LEX-RCMD: encapsulation failure." There is no workaround. Refer to software defect ID CSCdi66478. This defect is fixed in software Release 11.2(2) and above.

Changes to LANE Commands

The commands lane auto-config-atm-address, lane fixed-config-atm-address, and lane config-atm-address have been changed. Previously, the effect of these commands depended on whether they were used on a major interface or on a subinterface. In Release 11.2(1) and later releases, the optional config keyword indicates that the command causes the configuration server to listen on the designated address. If the keyword is not used, the command causes the other LANE clients and servers on the interface to use the designated address to locate the configuration server. Refer to the Wide-Area Networking Command Reference publication for more information about these commands.

Enabling IPX Routing

The Token Ring interface is reset whenever IPX routing is enabled on that interface.

Using LAN Emulation (LANE)

Note the following information regarding the LAN Emulation (LANE) feature in Cisco IOS Release 11.2:

Forwarding of Locally Sourced AppleTalk Packets

Our 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 Inside AppleTalk publication. 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.

Some 40-Bit Encryption Images Are Unavailable

Cisco is conducting an internal review of the build and distribution processes associated with its 40-bit Cisco IOS cryptographic products. So that we can provide you with seamless access to Cisco IOS 40-bit encryption capability, Cisco provides access to the most current 40-bit encryption images, beginning with 11.2 (12), 11.2(12)P, and 11.3(2). The following 40-bit encryption images are indefinitely unavailable: 11.2(1) - 11.2(11.2), 1.2(2)P - 11.2(11.1)P, 11.2(1)F - 11.2(4)F, 11.3(1).

This review is not related to any new or previously unreported bugs. The information gathered in the review is used to implement new automated development, and order processing applications.

Release 11.2(7a) Fixes Caveats CSCdj24132 and CSCdj21944

Cisco IOS software releases 11.2(7) and 11.2(7)P were deferred due to two severe defects. It was determined that these caveats were significant enough to merit a software rebuild. The rebuild includes the caveat fixes and is renumbered to 11.2(7a).

These defects are bugs CSCdj24132 and CSCdj21944 and are described as follows:

A router might also crash if the clear interface bri command is issued. This problem only affects net3, vn2/vn3, and ts013 switch types. [CSCdj24132]
The following are indicators that can be used to determine if the AS5200 is encountering this problem:
%SYS-2-MALLOCFAIL: Memory allocation of 1056 bytes failed from 0x2214E776, pool Processor, alignment 0
-Process= "Net Periodic", ipl= 0, pid= 34
-Traceback= 2214D3E0 2214E542 2214E77E 2214BEC6 2214C12A 22159466 2215E86E 22140BDE 2213B688 2213B6E0
[CSCdj21944]

Release 11.2(7a) and all subsequent releases of Cisco IOS software include the fix for these caveats.

Release 11.2(10a) Fixes Caveats CSCdj58676 and CSCdj60533

Cisco IOS software releases 11.2(10) and 11.2(10)P were deferred due to two severe defects. It was determined that these caveats were significant enough to merit a software rebuild. The rebuild includes the caveat fixes and is renumbered to 11.2(10a).

These defects are bugs CSCdj58676 and CSCdj60533 and are described as follows:

The nature of the defect is that it only occurs after a dynamic event. If redistribution is manually configured, EIGRP initially reflects correct information in the topology table. However, after any sort of dynamic event, the topology table becomes invalid, and routing updates sent are inaccurate. [CSCdj58676]
Note   The code changes committed by CSCdj58676 resolved some issues but created the symptoms reported in CSCdj65737. The code changes for CSCdj58676 were only committed to releases 11.2(10a), 11.2(10a)BC and 11.2(10a)P; therefore, they are the only ones affected by CSCdj65737. See the section "Release 11.2(11) Reintroduces Caveat CSCdj28874" for more information related to CSCdj58676 and CSCdj65737.

Release 11.2(11) Reintroduces Caveat CSCdj28874

CSCdj65737 was introduced by code changes associated with CSCdj58676. The issue is that routes are not being redistributed into EIGRP from other routing protocols if both protocols are routing for the same major network.

The code changes for CSCdj58676 were only applied to 11.2(10a), 11.2(10a)BC and 11.2(10a)P releases; therefore, those releases are the only ones impacted by CSCdj65737. The fix to CSCdj65737 is to back out the code changes committed by CSCdj58676 and CSCdj28874. That change has the effect of reintroducing the behavior reported by CSCdj28874, which is described as follows:

If the interface connecting that network goes down, only one of the two entries are removed from the topology table. The entry learned via redistribution remains in the topology table and is advertised, even though it is no longer valid. [CSCdj28874]

The code back-outs of CSCdj65737 and reintroduction of CSCdj28874 appears in the following releases:

All defect resolution information pertaining to CSCdj58676 is superseded by the details relating to CSCdj65737.

The symptoms of CSCdj28874 can be avoided by not using the redistributed connected command and instead specifying the individual networks to be redistributed into Enhanced IGRP.

Release 11.2(12a) Fixes Caveat CSCdj52309

Cisco IOS software Release 11.2(12) installed in Cisco 7500 router products was deferred due to a catastrophic defect. It was determined that this defect was significant enough to merit a software rebuild. The rebuild includes the caveat fix and is renumbered to Cisco IOS Release 11.2(12a).

The caveat is CSCdj52309 and is described as follows:

Tunneling is being used as an abbreviation in this context to refer to a specific fast-switch to process-level code path traversed by Translational (TLB), Source Route (SRB), Remote Source Route Bridging (RSRB), and Data Link Switching (DLSw).
When the packet tunneling logic on RSP or RSM-equipped systems causes datagrams to be copied from SRAM to DRAM, an arithmetic error results in more bytes being copied than is remembered for cleanup processing. Reuses of the tunneling logic, in certain rare combinations of timing, packet-sizes, and buffer-usages, might result in those unaccounted bytes causing several anomalous system behaviors including packet errors.
This software defect is exposed to all RSP and RSM images in the following Cisco IOS software releases: 11.2, 11.2 P, 11.2 BC, 11.3, 11.3 T.
Solution: To eliminate the problems mentioned in the preceding section, we strongly recommend that you download and install one of the following Cisco IOS software release updates: 11.2(12a), 11.2(12a)P, 11.3(2a), 11.3(2a)T
Workarounds: There are two possible workarounds. CSCdj33812 provides a configuration command to avoid the software defect. This workaround is available in the following Cisco IOS Releases: 11.2(11.5), 11.2(11.5)P, 11.2(11.5)BC, 11.3(2.1), and 11.3(2.1)T. If you are using an earlier release, use the second workaround.
Other considerations: Cisco IOS Releases 10.3, 11.0, and 11.1 Major and ED releases are not exposed to CSCdj52309. Though these releases share the same arithmetic problem, the tunneling software is different, and there is no known or predicted combination of timing, packet-sizes, and buffer-usages which results in the same or different anomalous behaviors associated with the Cisco IOS Releases 11.2, 11.2 P, 11.2 BC, 11.3 and 11.3 P. Cisco is using CSCdj52309 to repair the arithmetic problem in Releases 10.3, 11.0, and 11.1; however, no special images are being created because the anomalous behaviors are not present in those releases.
[CSCdj52309]

Release 11.2(12a) and all subsequent releases of Cisco IOS software include the fix for this caveat.

Release 11.2(15a) and 11.2(15a) P

After the release of Cisco IOS Release 11.2(15) and 11.2(15) P, a serious defect (caveat CSCdk33475) was identified that impacts Enhanced IGRP for Cisco IOS Releases 11.2(14.1) through 11.2(15.2) and Releases 11.2(14.1) P through 11.2(15.2) P. It was determined that this defect was significant enough to merit a software rebuild. The rebuild includes the caveat fix and is renumbered to 11.2(15a) and 11.2(15a) P.

Caveat CSCdk33475 causes a router to fail after the command show ip eigrp events is issued. While this show command is not required for normal operation, it is used often enough by TAC personnel and customers to cause major havoc to customers who are running images with this defect.

Release 11.2(15a) and 11.2(15a) P and all subsequent releases of Cisco IOS software, including Release 11.2(16) and 11.2(16) P, include the fix for this caveat.

Cisco IOS Release 11.2 Switches to Long-Cycle Maintenance Releases

Beginning with Cisco IOS Release 11.2(15) and 11.2(15) P, all subsequent 11.2 and 11.2 P releases switch to Long-Cycle Maintenance Releases. A new 11.2 and 11.2 P maintenance release is scheduled to be available every thirteen weeks during the Long-Cycle Maintenance Release period. Interim builds will be available approximately every three weeks.

Caveats

Caveats describe unexpected behavior in Cisco IOS software releases. Severity 1 caveats are the most serious caveats; severity 2 caveats are less serious.

For information on caveats in Cisco IOS Release 11.2 P, see Caveats for Cisco  IOS Release  .

All caveats in Cisco IOS Release 11.2 are also in Cisco IOS Release 11.2 P.

For information on caveats in Cisco IOS Release 11.2, see the caveats sections in Cross-Platform Release Notes for Cisco  IOS Release 11.2, which list severity 1 and 2 caveats.

Note   If you have an account with CCO, you can use Bug Navigator II to find caveats of any severity for any release. To reach Bug Navigator II, go to CCO and press Login. Then go to Software Center: Cisco IOS Software: Cisco Bugtool Navigator II. Another option is to go to http://www.cisco.com/support/bugtools.

Related Documentation

The following sections describe the documentation available for the Cisco 1000 series routers. These documents consist of hardware and software installation guides, Cisco IOS configuration and command references, system error messages, feature modules, and other documents.

Documentation is available as printed manuals or electronic documents, except for feature modules, which are available online on CCO  and the Documentation CD-ROM.

Use these release notes with these documents:

Release-Specific Documents

The following documents are specific to Cisco IOS Release 11.2 and are located on CCO  and the Documentation CD-ROM:

On CCO  at:
Technical Documents: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 11.2: Product Specific Release Notes for Cisco IOS Release 11.2: Cross-Platform Release Notes for Cisco IOS Release 11.2
On the Documentation CD-ROM at:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 11.2: Product Specific Release Notes for Cisco IOS Release 11.2: Cross-Platform Release Notes for Cisco IOS Release 11.2
Technical Documents
See the caveats sections in Cross-Platform Release Notes for Cisco  IOS Release 11.2 and the entire Caveats for Cisco  IOS Release  11.2 P document, which contain caveats applicable to all platforms for all maintenance releases of Cisco IOS Release 11.2 and Release 11.2 P.
On CCO  at:
Technical Documents: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 11.2: Product Specific Release Notes for Cisco IOS Release 11.2
On the Documentation CD-ROM at:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 11.2: Product Specific Release Notes for Cisco IOS Release 11.2

Platform-Specific Documents

These individual and groups of documents are available for the Cisco 1000 series routers on CCO  and the Documentation CD-ROM:

On CCO  at:
Technical Documents: Documentation Home Page: Cisco Product Documentation: Access Servers and Routers: Fixed Configuration Access Routers: Cisco 1000 series
On the Documentation CD-ROM at:
Cisco Product Documentation: Access Servers and Routers: Fixed Configuration Access Routers: Cisco 1000 series

Feature Modules

Feature modules describe new features supported by Cisco IOS Release 11.2 P and are updates to the Cisco IOS documentation set. A feature module consists of a brief overview of the feature, benefits, configuration tasks, and a command reference. As updates, the feature modules are available online only. Feature module information is incorporated in the next printing of the Cisco IOS documentation set.

On CCO  at:

Technical Documents: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 11.2: Feature Guide for Cisco IOS Release 11.2 P

On the Documentation CD-ROM at:

Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 11.2: Feature Guide for Cisco IOS Release 11.2 P

Cisco IOS Software Documentation Set

The Cisco IOS software documentation set consists of the Cisco IOS configuration guides, Cisco IOS command references, and several other supporting documents that are shipped with your order in electronic form on the Documentation CD-ROM--unless you specifically ordered the printed versions.

Documentation Modules

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 contain comprehensive configuration examples. Chapters in a command reference provide complete command syntax information. Use each configuration guide 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.

On CCO  at:

Technical Documents: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 11.2: Cisco IOS Release 11.2 Configuration Guides/Command References

On the Documentation CD-ROM at:

Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 11.2: Cisco IOS Release 11.2 Configuration Guides/Command References

Cisco IOS Release 11.2 Documentation Set

Table 5 describes the contents of the Cisco IOS Release 11.2 software documentation set, which is available in electronic form and in printed form ordered.

Note   You can find the most current Cisco IOS documentation on CCO  and the Documentation CD-ROM. These electronic documents may contain updates and modifications made after the hard-copy documents were printed.

On CCO  at:

Technical Documents: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 11.2

On the Documentation CD-ROM at:

Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 11.2


Table 5: Cisco IOS Release 11.2 Documentation Set
Books Chapter Topics

  • Configuration Fundamentals Configuration Guide

  • Configuration Fundamentals Command Reference

Access Server and Router Product Overview

User Interface

System Images and Configuration Files

Using ClickStart, AutoInstall, and Setup

Interfaces

System Management

  • Security Configuration Guide

  • Security Command Reference

Network Access Security

Terminal Access Security

Accounting and Billing

Traffic Filters

Controlling Router Access

Network Data Encryption with Router Authentication

  • Access Services Configuration Guide

  • Access Services Command Reference

Terminal Lines and Modem Support

Network Connections

AppleTalk Remote Access

SLIP and PPP

XRemote

LAT

Telnet

TN3270

Protocol Translation

Configuring Modem Support and Chat Scripts

X.3 PAD

Regular Expressions

  • Wide-Area Networking Configuration Guide

  • Wide-Area Networking Command Reference

ATM

Dial-on-Demand Routing (DDR)

Frame Relay

ISDN

LANE

PPP for Wide-Area Networking

SMDS

X.25 and LAPB

  • Network Protocols Configuration Guide, Part 1

  • Network Protocols Command Reference, Part 1

IP

IP Routing

  • Network Protocols Configuration Guide, Part 2

  • Network Protocols Command Reference, Part 2

AppleTalk

Novell IPX

  • Network Protocols Configuration Guide, Part 3

  • Network Protocols Command Reference, Part 3

Apollo Domain

Banyan VINES

DECnet

ISO CLNS

XNS

  • Bridging and IBM Networking Configuration Guide

  • Bridging and IBM Networking Command Reference

Transparent Bridging

Source-Route Bridging

Remote Source-Route Bridging

DLSw+

STUN and BSTUN

LLC2 and SDLC

IBM Network Media Translation

DSPU and SNA Service Point Support

SNA Frame Relay Access Support

APPN

NCIA Client/Server Topologies

IBM Channel Attach

  • Cisco IOS Software Command Summary

  • Access Services Quick Configuration Guide

  • System Error Messages

  • Debug Command Reference

  • Cisco Management Information Base (MIB) User Quick Reference
Note   Cisco Management Information Base (MIB) User Quick Reference is no longer published. If you have an account with CCO, you can find the current list of MIBs supported by Cisco. To reach the Cisco Network Management Toolkit, go to CC, press Login, and click to Software Center: Network Mgmt Products: Cisco Network Management Toolkit: Cisco MIB.

Obtaining Documentation

World Wide Web

You can access the most current Cisco documentation on the World Wide Web at http://www.cisco.com, http://www-china.cisco.com, or http://www-europe.cisco.com.

Documentation CD-ROM

Cisco documentation and additional literature are available in a CD-ROM package, which ships with your product. The Documentation CD-ROM is updated monthly. Therefore, it is probably more current than printed documentation. The CD-ROM package is available as a single unit or as an annual subscription.

Ordering Documentation

Registered CCO users can order the Documentation CD-ROM and other Cisco Product documentation through our online Subscription Services at http://www.cisco.com/cgi-bin/subcat/kaojump.cgi.

Nonregistered CCO users can order documentation through a local account representative by calling Cisco's corporate headquarters (California, USA) at 408 526-4000 or, in North America, call 800 553-NETS (6387).

Obtaining Technical Assistance

Cisco provides Cisco Connection Online (CCO)  as a starting point for all technical assistance. Warranty or maintenance contract customers can use the Technical Assistance Center. All customers can submit technical feedback on Cisco documentation using the web, e-mail, a self-addressed stamped response card included in many printed documents, or by sending mail to Cisco.

Cisco Connection Online

Cisco continues to revolutionize how business is done on the Internet. Cisco Connection Online is the foundation of a suite of interactive, networked services that provides immediate, open access to Cisco information and resources at anytime, from anywhere in the world. This highly integrated Internet application is a powerful, easy-to-use tool for doing business with Cisco.

CCO's broad range of features and services helps customers and partners to streamline business processes and improve productivity. Through CCO, you will find information about Cisco and our networking solutions, services, and programs. In addition, you can resolve technical issues with online support services, download and test software packages, and order Cisco learning materials and merchandise. Valuable online skill assessment, training, and certification programs are also available.

Customers and partners can self-register on CCO to obtain additional personalized information and services. Registered users may order products, check on the status of an order and view benefits specific to their relationships with Cisco.

You can access CCO  in the following ways:

You can e-mail questions about using CCO to cco-team@cisco.com.

Technical Assistance Center

The Cisco Technical Assistance Center (TAC) is available to warranty or maintenance contract customers who need technical assistance with a Cisco product that is under warranty or covered by a maintenance contract.

To display the TAC web site that includes links to technical support information and software upgrades and for requesting TAC support, use www.cisco.com/techsupport.

To contact by e-mail, use one of the following:

Language

E-mail Address

 English


 tac@cisco.com


 Hanzi (Chinese)


 chinese-tac@cisco.com


 Kanji (Japanese)


 japan-tac@cisco.com


 Hangul (Korean)


 korea-tac@cisco.com


 Spanish


 tac@cisco.com


 Thai


 thai-tac@cisco.com

In North America, TAC can be reached at 800 553-2447 or 408 526-7209. For other telephone numbers and TAC e-mail addresses worldwide, consult the following web site: http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml.

Software Configuration Tips on the Cisco Technical Assistance Center Home Page

If you have a CCO log-in account, you can access the following URL, which contains links and tips on configuring your Cisco products:

http://www.cisco.com/kobayashi/technotes/serv_tips.shtml

This URL is subject to change without notice. If it changes, point your Web browser to CCO, press Login, and click on this path: Technical Assistance Center: Technical Tips.

The following sections are provided from the Technical Tips page:

Documentation Feedback

If you are reading Cisco product documentation on the World Wide Web, you can submit technical comments electronically. Click Feedback in the toolbar and select Documentation. After you complete the form, click Submit to send it to Cisco.

You can e-mail your comments to bug-doc@cisco.com.

To submit your comments by mail, for your convenience many documents contain a response card behind the front cover. Otherwise, you can mail your comments to the following address:

Cisco Systems, Inc.
Document Resource Connection
170 West Tasman Drive
San Jose, CA 95134-9883

We appreciate and value your comments.





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Posted: Mon Aug 7 20:55:13 PDT 2000
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