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These release notes describe new features and significant software components for the Cisco 827 and Cisco 827-4V Routers that support Cisco IOS Release 12.1 T, up to and including Release 12.1(1)XB. These release notes are updated as needed to describe new memory requirements, new features, new hardware support, software platform deferrals, microcode or modem code changes, related document changes, and any other important changes. Use these release notes with the C ross-Platform Release Notes for Cisco IOS Release 12.1 located on CCO and the Documentation CD-ROM.
For a list of the software caveats that apply to Release 12.1(1)XB, refer to the section "Caveats" and to the online Caveats for Cisco IOS Release 12.1 T document. The caveats document is updated for every 12.1 T maintenance release and is located on Cisco Connection Online (CCO) and the Documentation CD-ROM.
These release notes discuss the following topics:
This section describes the system requirements for Release 12.1(1)XB and includes the following sections:
This section describes the memory requirements for the Cisco IOS feature sets supported by Cisco IOS Release 12.1(1)XB on the Cisco 827 and Cisco 827-4V Routers.
| Platforms | Image Name | Image | Recommended Flash Memory1 | Recommended DRAM Memory | Runs From |
|---|---|---|---|---|---|
Cisco 827 | IP | c827-y6-mz | 12 MB | 16 MB | RAM |
Cisco 827-4V | IP Voice Plus | c827v-y6-mz | 12 MB | 24 MB | RAM |
Cisco 827-4V | IP/IPX Voice Plus | c827v-nsy6-mz | 12 MB | 24 MB | RAM |
Cisco IOS Release 12.1(1)XB supports the following Cisco 800 series routers:
For detailed descriptions of new hardware features, see New and Changed Information.
| Router | Ethernet Ports | ADSL Ports | Telephone Ports | Console Ports |
|---|---|---|---|---|
Cisco 827 | One 10BaseT (RJ-45) | RJ-45 | - | RJ-45 |
Cisco 827-4V | One 10BaseT (RJ-45) | RJ-45 | Four (RJ-11) | RJ-45 |
The Cisco 827 and Cisco 827-4V Routers provide the following key hardware features:
To determine the version of Cisco IOS software currently running on your Cisco 800 series router, log in to the router and enter the show version EXEC command. The following sample output from the show version command indicates the version number on the second output line:
router> show version Cisco Internetwork Operating System Software IOS (tm) 800 Software (c827-y6-mz), Version 12.1(1)XB, RELEASE SOFTWARE
Additional command output lines include more information, such as processor revision numbers, memory amounts, hardware IDs, and partition information.
For information about upgrading to a new software release, refer to the Cisco IOS Upgrade Ordering Instructions product bulletin located at the following URL: http://www.cisco.com/warp/public/cc/cisco/mkt/ios/prodlit/957_pp.htm.
Alternatively, the Cisco IOS Software page on CCO has a variety of information, including upgrade information, organized by release. If you have a CCO account and log in, you can go directly to: http://www.cisco.com/kobayashi/sw-center/sw-ios.shtml.
If you have a CCO account and log in, you can reach the Cisco IOS Software page by going to www.cisco.com and following this path: Service & Support: Software Center: Cisco IOS Software: Cisco IOS 12.1: Ordering Procedures and Hardware Platform Support: Cisco IOS Upgrade Ordering Instructions.
You can also reach the IOS Upgrade Planner, which allows you more flexibility to browse for your preferred software, by going to www.cisco.com and following this path: Service & Support: Software Center: IOS Upgrade Planner.
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. Release 12.1(1)XB supports the same feature sets as Releases 12.1 and 12.1 T, but Release 12.1(1)XB can include new features supported by the Cisco 827 and Cisco 827-4V Routers. Table 3 lists the feature sets supported by the Cisco 827 and Cisco 827-4V Routers.
| Image Name | Feature Set Matrix Terms | Software Image | Platform |
|---|---|---|---|
Cisco 827 Series IOS IP | IP | c827-y6-mz | Cisco 827 |
Cisco 827 Series IOS IP/IPX Voice Plus | IP/IPX, Voice, Plus | c827v-y6-mz | Cisco 827-4V |
Cisco 827 Series IOS IP Voice Plus | IP, Voice, Plus | c827v-nsy6-mz | Cisco 827-4V |
Table 4 lists the features and feature sets supported by the Cisco 827 and Cisco 827-4V Routers in Cisco IOS Release 12.1(1)XB. The table uses the following conventions:
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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. |
| Feature Sets | |||
|---|---|---|---|
| Features | IP | IP/Voice Plus | IP/IPX/Voice Plus |
| Address Conservation |
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| Yes | Yes | Yes |
| Yes | Yes | Yes |
| Yes | Yes | Yes |
| Yes | Yes | Yes |
| Bandwidth Optimization |
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| Yes | Yes | Yes |
| Yes | Yes | Yes |
| Business-Class Quality of Service |
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| Yes | Yes | Yes |
| Yes | Yes | Yes |
| Yes | Yes | Yes |
| Yes | Yes | Yes |
| Yes | Yes | Yes |
| Yes | Yes | Yes |
| Business-Class Security |
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| No | Yes | Yes |
| Yes | Yes | Yes |
| Yes | Yes | Yes |
| Yes | Yes | Yes |
| Yes | Yes | Yes |
| Ease of Use and Deployment |
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| Yes | Yes | Yes |
| Yes | Yes | Yes |
| Enhanced Security |
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| No | No | No |
| No | No | No |
| No | No | No |
| No | No | No |
| No | No | No |
| No | No | No |
| LAN |
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| Yes | Yes | Yes |
| No | No | Yes |
| Yes | Yes | Yes |
| Management |
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| Yes | Yes | Yes |
| No | Yes | Yes |
| Yes | Yes | Yes |
| No | Yes | Yes |
| Yes | Yes | Yes |
| Yes | Yes | Yes |
| Routing |
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| No | Yes | Yes |
| Yes | Yes | Yes |
| Yes | Yes | Yes |
| No | No | Yes |
| Yes | Yes | Yes |
| Voice Features (Cisco 827-4V only) |
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| No | Yes | Yes |
| No | Yes | Yes |
| No | Yes | Yes |
| No | Yes | Yes |
The following sections list the new hardware and software features supported by the Cisco 800 series for Release 12.1 T:
The following sections list the new hardware and software features supported by the Cisco Cisco 827 and Cisco 827-4V Routers for Release 12.1(1)XB.
The Cisco 827 and Cisco 827-4V asymmetric digital subscriber line (ADSL) routers use Cisco IOS software to provide business-class functionality for small- and medium-sized business offices and corporate telecommuting workers. The routers support up to 20 users in a small office or telecommuting environment with differentiated classes of service, integrated toll-quality voice and data, business-class security, and manageability.
For information regarding the features supported in Cisco IOS Release 12.1, refer to the Cross-Platform Release Notes and New Feature Documentation links at the following location on CCO:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/index.htm
This URL is subject to change without notice. If it changes, point your web browser to CCO, and click on the following path:
Service & Support: Technical Documents: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 12.1: Cisco IOS Release 12.1
The following MIBs are supported in the Cisco 827 routers:
The following sections contain important notes about Cisco IOS Release 12.1 that can apply to the Cisco 827 and Cisco 827-4V Routers. (Also, see the "Caveats" section.)
The ADSL cable that you connect to the Cisco 827 router must be 10BaseT Category 5, unshielded twisted-pair (UTP) cable. Using regular telephone cable can introduce line errors.
Perform the following steps to configure the router for DHCP client support:
Specifying the value client-id ethernet0 causes that the MAC address of the Ethernet interface to be used as the client ID when the DHCP request is sent. Otherwise, the MAC address of the BVI interface is used as the client ID.
Step 2 Configure NAT.
a. Configure the BVI interface by entering the nat outside command.
b. Configure the Ethernet interface by entering the nat inside command.
c. Create an access list under NAT by entering the access-list 1 permit ip address command to match all Ethernet IP addresses.
d. Configure the source list under NAT by entering the command ip nat inside source list 1 interface BVI 1 overload.
Step 3 This step is optional. Configure the Cisco 827 router to act as a DHCP server.
a. At the config-if router prompt, enter the server name command ip dhcp pool.
b. Enter the command import all to have the Cisco 827 router retrieve the Microsoft Windows nameserver (WINS) and domain name system (DNS) server addresses for name resolution.
Current configuration: ! version 12.0 no service pad service timestamps debug uptime service timestamps log uptime no service password-encryption ! hostname c827 ! ! ip subnet-zero ip dhcp excluded-address 10.10.10.1 ! ip dhcp pool SERVER network 10.10.10.0 255.255.255.0 default-router 10.10.10.1 import all ! ! ! bridge irb ! ! ! ! interface Ethernet0 ip address 10.10.10.1 255.255.255.0 no ip directed-broadcast ip nat inside ! interface ATM0 no ip address no ip directed-broadcast no atm ilmi-keepalive bundle-enable hold-queue 208 in ! interface ATM0.1 point-to-point no ip directed-broadcast pvc 1/100 encapsulation aal5snap ! bridge-group 1 ! interface ATM0.2 point-to-point ip address 5.0.0.2 255.0.0.0 no ip directed-broadcast pvc 1/101 protocol ip 5.0.0.1 broadcast protocol ip 5.0.0.5 broadcast encapsulation aal5snap ! ! interface BVI1 ip address dhcp client-id Ethernet0 no ip directed-broadcast ip nat outside ! ip nat inside source list 1 interface BVI1 overload ip classless ip route 0.0.0.0 0.0.0.0 BVI1 no ip http server ! access-list 1 permit 10.10.10.0 0.0.0.255 bridge 1 protocol ieee bridge 1 route ip ! voice-port 1 timing hookflash-in 0 ! voice-port 2 timing hookflash-in 0 ! voice-port 3 timing hookflash-in 0 ! voice-port 4 timing hookflash-in 0 ! ! line con 0 exec-timeout 0 0 transport input none stopbits 1 line vty 0 4 password lab login ! scheduler max-task-time 5000 end
Delete files in the router Flash memory before attempting to download new images.
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Caution Use the delete command, not erase, to free up space. Entering erase removes all files, including the configuration. |
Cisco 827 routers use 4 MB of Flash memory for storing internal information such as the ROM monitor. Only the remainder of the Flash memory is available for storing Cisco IOS images and is displayed by using the command show flash. For example, if the router reports 8 MB of Flash, the actual amount of onboard Flash memory is 12 MB, even though only 8 MB are displayed and available for Cisco IOS image storage.
Multilink PPP fragments large data packets to allow small voice packets to be interleaved between them. However, apart from first-in-first-out (FIFO) queuing, no other kind of output queuing mechanisms are currently supported with PPP over ATM. Consequently, when multilink PPP is configured on the Cisco 827 routers, large packets are fragmented, but small voice packets are not interleaved between them.
NAT does not support alerting H.225 messages, therefore, NAT communication cannot be established between router end points. NAT support for H.323 signaling is limited to the application Netmeeting.
Phone Mate model 9200 answering machines fail to recognize the ringing signal sent by AMD R79 ringing SLIC. Tests were performed with the Phone Mate models 3750 and 9300.
PPP over AAL5SNAP encapsulation is currently not supported, although the context sensitive help mentions that it can be configured.
Caveats describe unexpected behavior or defects in Cisco IOS software releases. Severity 1 caveats are the most serious caveats, severity 2 caveats are less serious, and severity 3 caveats are the least serious of these three severity levels.
All caveats in Release 12.1 T are also in Release 12.1(1)XB. For information on caveats in Cisco IOS Release 12.1 T, refer to the Caveats for Cisco IOS Release 12.1 T document. For information on caveats in Cisco IOS Release 12.1, refer to the Caveats for Cisco IOS Release 12.1 document. These publications list severity 1 and 2 caveats, and are located on CCO and the Documentation CD-ROM.
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Note If you have an account with CCO, you can use Bug Navigator II to find caveats of any severity for any release. You can reach Bug Navigator II on CCO at Software Center: Cisco IOS Software: BUG TOOLKIT: Cisco Bug Navigator II, or at http://www.cisco.com/support/bugtools/bugtool.shtml. |
The following sections describe the documentation available for the Cisco 827 and Cisco 827-4V Routers. Typically, 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 the documents listed in the following sections:
The following documents are specific to Release 12.1. They are located on CCO and the Documentation CD-ROM:
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Note If you have an account with CCO, you can use Bug Navigator II to find caveats of any severity for any release. You can reach Bug Navigator II on CCO at Software Center: Cisco IOS Software: BUG TOOLKIT: Cisco Bug Navigator II, or at http://www.cisco.com/support/bugtools/bugtool.shtml. |
These documents are available for the Cisco 827 and Cisco 827-4V Routers on CCO and the Documentation CD-ROM:
On CCO at:
Technical Documents: Documentation Home Page: Access Servers and Access Routers: Fixed Configuration Access Routers: Cisco 827 Routers
On the Documentation CD-ROM at:
Cisco Product Documentation: Access Servers and Access Routers: Fixed Configuration Access Routers: Cisco 827 Routers
Feature modules describe new features supported by Release 12.1 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.
To reach the Release 12.1 feature modules:
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 printed versions.
Each module in the Cisco IOS documentation set consists of two types of 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.
The Cisco IOS software documentation set is available on CCO and on the Documentation CD-ROM.
On CCO at:
Technical Documents: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 12.1: Configuration Guides and Command References
On the Documentation CD-ROM at:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.1: Configuration Guides and Command References
Table 5 describes the contents of the Cisco IOS Release 12.1 software documentation set, which is available in both electronic and printed form.
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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 12.1
On the Documentation CD-ROM at:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.1
| Books | Chapter Topics |
|---|---|
Configuration Fundamentals Overview Using the Command-Line Interface (CLI) Using Configuration Tools Configuring Operating Characteristics Managing Connections, Menus, and System Banners Using the Cisco Web Browser Using the Cisco IOS File System Modifying, Downloading, & Maintaining Configuration Files Loading and Maintaining System Images Maintaining Router Memory Rebooting a Router Configuring Additional File Transfer Functions Monitoring the Router and Network Troubleshooting a Router Performing Basic System Management System Management Using System Controllers Web Scaling Using WCCP Managing Dial Shelves | |
| Overview of Apollo Domain, Banyan VINES, DECNET, ISO Configuring Apollo Domain Configuring Banyan VINES Configuring DECnet Configuring IOS CLNS Configuring XNS |
| AppleTalk and Novel IPX Overview Configuring AppleTalk Configuring Novell IPX |
| Overview of SNA Internetworking Overview of Bridging Configuring Transparent Bridging Configuring Source-Route Bridging Configuring Token Ring Inter-Switch Link Configuring Token Ring Route Switch Module Overview of IBM Networking Configuring Remote Source-Route Bridging Configuring Data-Link Switching Plus+ Configuring Serial Tunnel and Block Serial Tunnel Configuring LLC2 and SDLC Parameters Configuring IBM Network Media Translation Configuring Frame Relay Access Support Configuring NCIA Server Configuring the Airline Product Set Configuring DSPU and SNA Service Point Support Configuring SNA Switching Services Configuring Cisco Transaction Connection
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(Continued)
| Configuring Cisco Mainframe Channel Connection Adapters Configuring CLAW and TCP/IP Offload Support Configuring CMPC and CSNA Configuring CMPC+ Configuring the TN3270 Server |
| Large-Scale Dial Solutions Cost-Control Solutions Virtual Private Networks X.25 on ISDN Solutions Telco Solutions Dial-Related Addressing Services Internetworking Dial Access Scenarios Preparing for Dial Access Modem Configuration and Management ISDN and Signalling Configuration PPP Configuration Dial-on-Demand Routing Configuration Dial-Backup Configuration Terminal Service Configuration |
| Interface Configuration Overview Configuring LAN Interfaces Configuring Serial Interfaces Configuring Logical Interfaces |
| IP Overview Configuring IP Addressing Configuring DHCP Configuring IP Services Configuring Mobile IP Configuring On-Demand Routing Configuring RIP Configuring IGRP Configuring OSPF Configuring IP Enhanced IGRP Configuring Integrated IS-IS Configuring BGP Configuring Multicast BGP (MBGP) Configuring IP Routing Protocol-Independent Features Configuring IP Multicast Routing Configuring Multicast Source Discovery Protocol Configuring PGM Router Assist Configuring Unidirectional Link Routing Using IP Multicast Tools |
| Multiservice Applications Overview Configuring Voice over IP Configuring Gatekeepers (Multimedia Conference Manager) Configuring Voice over Frame Relay Configuring Voice over ATM Configuring Voice over HDLC Configuring Voice-Related Support Features Configuring PBX Signaling Configuring Store and Forward Fax Configuring Video Support Configuring Head-End Broadband Access Router Features Configuring Subscriber-End Broadband Access Router Configuring Synchronized Clocking |
| Quality of Service Overview Classification Overview Configuring Policy-Based Routing Configuring QoS Policy Propagation via Border Gateway Configuring Committed Access Rate Congestion Management Overview Configured Weighted Fair Queueing Configuring Custom Queueing Configuring Priority Queueing Congestion Avoidance Overview Configuring Weighted Random Early Detection Policing and Shaping Overview Configuring Generic Traffic Shaping Configuring Frame Relay and Frame Relay Traffic Shaping Signalling Overview Configuring RSVP Configuring Subnetwork Bandwidth Manager Configuring RSVP-ATM Quality of Service Internetworking Link Efficiency Mechanisms Overview Configuring Link Fragmentation and Interleaving for Multilink Configuring Compressed Real-Time Protocol IP to ATM CoS Overview Configuring IP to ATM CoS QoS Features for Voice Introduction |
| Security Overview AAA Overview Configuring Authentication Configuring Authorization Configuring Accounting Configuring RADIUS Configuring TACACS+ Configuring Kerberos Radius Commands |
(Continued)
| TACACS+ Commands Access Control Lists: Overview and Guidelines Cisco Secure Integrated Software Firewall Overview Configuring Lock-and-Key Security (Dynamic Access Lists) Configuring IP Session Filtering (Reflexive Access Lists) Configuring TCP Intercept (Prevent Denial-of-Service Attacks) Configuring Context-Based Access Control Configuring Cisco Secure Integrated Software Intrusion Configuring Authentication Proxy Configuring Port to Application Mapping IP Security and Encryption Overview Configuring IPSec Network Security Configuring Certification Authority Interoperability Configuring Internet Key Exchange Security Protocol Configuring Passwords and Privileges Neighbor Router Authentication: Overview and Guidelines Configuring IP Security Options |
| Cisco IOS Switching Services Overview Switching Paths Overview Configuring Switching Paths Cisco Express Forwarding Overview Configuring Cisco Express Forwarding NetFlow Switching Overview Configuring NetFlow Switching MPLS Overview Configuring MPLS Configuring IP Multilayer Switching Configuring IP Multicast Multilayer Switching Configuring IPX Multilayer Switching Configuring Multicast Distributed Switching Routing Between VLANs Overview Configuring Routing Between VLANs with ISL Encapsulation Configuring Routing Between VLANs with IEEE 802.10 Configuring Routing Between VLANs with IEEE 802.1Q Encapsulation LAN Emulation Overview Configuring LAN Emulation Configuring Token Ring LANE MPOA Overview Configuring the MPOA Client Configuring the MPOA Server Configuring Token Ring LANE for MPOA
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| Wide-Area Networking Overview Configuring ATM Frame Relay Frame Relay-ATM Internetworking Configuring SMDS Configuring X.25 and LAPB |
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Note Cisco Management Information Base (MIB) User Quick Reference is no longer published. If you have an account with CCO, you can find latest list of MIBs supported by Cisco. To reach the Cisco Network Management Toolkit, press Login at CCO and go to Software Center: Network Mgmt Products: Cisco Network Management Toolkit. |
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.
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.
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).
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 docs, or by sending mail to Cisco.
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You can access CCO in the following ways:
You can e-mail questions about using CCO to cco-team@cisco.com.
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:
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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.
If you have a CCO login account, you can access the following URL, which contains links and software 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, log in, and click on this path: Technical Assistance Center:Technical Tips.
The following sections are provided from the Technical Tips page:
We appreciate and value your comments:
Posted: Mon Aug 28 12:25:11 PDT 2000
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