Table Of Contents
Release Notes for Cisco 2500 Series Routers for Cisco IOS Release 12.1(5)XM
Determining the Software Release
Upgrading to a New Software Release
New Software Features in Cisco IOS Releases 12.1(5)XM and 12.1(5)XM1
Caveat CSCdr91706 and IOS HTTP Vulnerability
Resolved Caveats - Release 12.1(5)XM7
Cisco IOS Software Documentation Set
Cisco IOS Release 12.1 Documentation Set
Obtaining Technical Assistance
Software Configuration Tips on the Cisco Technical Assistance Center Home Page
Release Notes for Cisco 2500 Series Routers for Cisco IOS Release 12.1(5)XM
February 13, 2002
These release notes for Cisco 2500 series routers describe the enhancements provided in Cisco IOS Release 12.1(5)XM7. These release notes are updated as needed. Use these release notes with Cross-Platform Release Notes for Cisco IOS Release 12.1 on Cisco.com and the Documentation CD-ROM.
All caveats in Release 12.1(5)T are also in Release 12.1(5)XM7. For a list of the software caveats that apply to Cisco IOS Release 12.1 T, see Caveats for Cisco IOS Release 12.1 T that accompanies these release notes. The caveats document is updated for every maintenance release and is located on Cisco.com and the Documentation CD-ROM.
Note
You can find the most current Cisco IOS documentation on Cisco.com. These electronic documents might contain updates and modifications made after the hardcopy documents were printed.
Contents
These release notes describe the following topics:
•
Early Deployment Releases
These release notes describe the Cisco 2500 series routers for Cisco IOS Release 12.1(5)XM7, which is an early deployment (ED) release based on Cisco IOS Release 12.1 T. Early deployment releases contain fixes for software caveats and support for new Cisco hardware and software features. The following lists shows the recent early deployment releases of the Cisco 2500 series routers:
•
•
•
•
•
For more information, see the "Platform-Specific Documents" section about accessing related release note documents.
System Requirements
This section describes the system requirements for Cisco IOS Release 12.1(5)XM7:
•
•
Memory Requirements
Hardware Supported
Cisco IOS Release 12.1(5)XM7 supports the Cisco 2500 series routers:
•
•
•
•
•
•
For detailed descriptions of the new hardware features, see "New and Changed Information" section.
Determining the Software Release
To determine the version of Cisco IOS software running on your Cisco 2500 series router, log in to the router and enter the show version EXEC command:
router> show versionCisco Internetwork Operating System SoftwareIOS (tm) Software (c2500-ix-l), Version 12.1(5)XM7, RELEASE SOFTWAREUpgrading 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 12.1(5)XM7 supports the same feature sets as Cisco IOS Release 12.1 T, but Release 12.1(5)XM7 can include new features supported by the Cisco 2500 series routers.
Caution
Table 3 lists the features and feature sets supported by the Cisco 2500 series routers in Cisco IOS Release 12.1(5)XM7 and use the following conventions:
•
•
•
Note
http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121relnt/xprn121/121feats.htm.
New and Changed Information
New Software Features in Cisco IOS Releases 12.1(5)XM and 12.1(5)XM1
The following new software feature is supported by Cisco 2500 series routers for Release 12.1(5)XM. No new software features are supported by Cisco 2500 series routers for Release 12.1(5)XM7
High-Performance Gatekeeper
Cisco IOS Release 12.1(5)XM supports the following High-Performance Gatekeeper (GK) enhancements:
•
•
•
Cisco IOS Release 12.1(5)XM also supports Cisco H.323 Multimedia Conference Manager (MCM) enhancements that provide the network administrator with the ability to identify H.323 traffic and to apply appropriate policies. The Cisco MCM is implemented on Cisco IOS software and enables a network manager to do the following:
•
•
•
•
Limitations and Restrictions
MIBs
Old Cisco Management Information Bases (MIBs) will be replaced in a future release. Currently, OLD-CISCO-* MIBs are being converted into more scalable MIBs—without affecting existing Cisco IOS products or NMS applications. You can update from deprecated MIBs to the replacement MIBs as shown in Table 4.
Note
Important Notes
The following sections contain important notes about Cisco IOS Release 12.1(5)XM7 that can apply to the Cisco 2500 series routers.
Caveat CSCdr91706 and IOS HTTP Vulnerability
A defect in multiple releases of Cisco IOS software causes a Cisco router or switch to halt and reload if the IOS HTTP service is enabled and you browse to http://router-ip/anytext?/ and enter the enable password when it is requested. This defect can be exploited to produce a denial of service (DoS) attack. This vulnerability can only be exploited if the enable password is known or not set.
The vulnerability, identified as Cisco bug ID CSCdr91706, affects virtually all mainstream Cisco routers and switches running Cisco IOS software releases 12.0 through 12.1, inclusive. This is not the same defect as CSCdr36952.
The vulnerability has been corrected and Cisco is making fixed releases available for free to replace all affected IOS releases. Cisco urges all customers to upgrade to releases that are not vulnerable to this defect as listed in the complete advisory, which is available at: http://www.cisco.com/warp/public/707/ ioshttpserverquery-pub.shtml. You are strongly encouraged to read the complete advisory.
Caveats
Caveats describe unexpected behavior 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(5)T are also in Release 12.1(5)XM7. For information on caveats in Cisco IOS Release 12.1(5)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, located on Cisco.com and the Documentation CD-ROM, list severity 1 and 2 caveats, and select severity 3 caveats.
Note
Resolved Caveats - Release 12.1(5)XM7
This section describes unexpected behavior that is fixed in Release 12.1(5)XM7.
Management
CSCdw65903
An error can occur with management protocol processing. Please use the following URL for further information:
http://www.cisco.com/cgi-bin/bugtool/onebug.pl?bugid=CSCdw65903
Related Documentation
The following sections describe the documentation available for the Cisco 2500 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 Cisco.com and the Documentation CD-ROM.
Use these release notes with these documents:
•
Release-Specific Documents
The following documents apply to Cisco IOS Release 12.1(5)XM7 and are located on Cisco.com and the Documentation CD-ROM:
•
On Cisco.com 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: Release Notes: Cross-Platform Release Notes
•
Technical Documents
•
See Caveats for Cisco IOS Release 12.1 and Caveats for Cisco IOS Release 12.1 T, which contain caveats applicable to all platforms for all maintenance releases of Cisco IOS Release 12.1 and Release 12.1 T:
–
Technical Documents: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 12.1: Caveats
–
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.1: Caveats
Note
Platform-Specific Documents
These individual and groups of documents are available for the Cisco 2500 series routers on Cisco.com and the Documentation CD-ROM:
•
•
•
•
•
On Cisco.com at:
Technical Documents: Documentation Home Page: Cisco Product Documentation: Access Servers and Access Routers: Modular Access Routers: Cisco 2500 Series Routers
On the Documentation CD-ROM at:
Cisco Product Documentation: Access Servers and Access Routers: Modular Access Routers: Cisco 2500 Series Routers
Feature Modules
Feature modules describe new features supported by Cisco IOS Release 12.1 T and above, 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.
The online-only feature module specific to Release 12.1(5)XM7 is located on Cisco.com at:
Technical Documents: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 12.1: New Feature Documentation: New Features in 12.1-Based Limited Lifetime Releases: New Features in 12.1 X Releases: New Features in Release 12.1(5)XM: New Features in Release 12.1(5)XM: High-Performance Gatekeeper
On the Documentation CD-ROM at:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.1: New Feature Documentation: New Features in 12.1-Based Limited Lifetime Releases: New Features in 12.1 X Releases: New Features in Release 12.1(5)XM: New Features in Release 12.1(5)XM: High-Performance Gatekeeper
Feature Navigator
Feature Navigator is a web-based tool that enables you to quickly determine which Cisco IOS software images support a particular set of features and which features are supported in a particular Cisco IOS image. Feature Navigator is available 24 hours a day, 7 days a week.
To access Feature Navigator, you must have an account on Cisco.com. If you have forgotten or lost your account information, e-mail the Contact Database Administration group at cdbadmin@cisco.com. If you do not have an account on Cisco.com, go to http://www.cisco.com/register and follow the directions to set up an account.
To use Feature Navigator, you must have a JavaScript-enabled web browser such as Netscape 3.0 or later, or Internet Explorer 4.0 or later. Internet Explorer 4.0 always has JavaScript enabled. To enable JavaScript for Netscape 3.x or Netscape 4.x, follow the instructions provided with the web browser. For JavaScript support and enabling instructions for other browsers, check with the browser vendor.
Feature Navigator is updated when major Cisco IOS software releases and technology releases occur. You can access Feature Navigator at the following URL:
http://www.cisco.com/go/fn
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 Cisco.com and the Documentation CD-ROM, two master hot-linked documents provide information for the Cisco IOS software documentation set:
•
Technical Documents: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 12.1: Configuration Guides and Command References
•
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.1: Configuration Guides and Command References
Cisco IOS Release 12.1 Documentation Set
Table 5 describes the contents of the Cisco IOS Release 12.1 software documentation set, which is available in electronic form and in printed form ordered.
Note
On Cisco.com 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
Note
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 Cisco.com 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 Cisco.com 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.com 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.com
Cisco continues to revolutionize how business is done on the Internet. Cisco.com 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.
Cisco.com's broad range of features and services helps customers and partners to streamline business processes and improve productivity. Through Cisco.com, 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 Cisco.com 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 Cisco.com in the following ways:
•
•
•
–
–
You can e-mail questions about using Cisco.com 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:
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 Cisco.com log-in account, you can access the following URL, which contains links and tips on configuring your Cisco products:
http://www.cisco.com/public/technotes/tech_sw.html
This URL is subject to change without notice. If it changes, point your Web browser to Cisco.com, 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 95134-9883We appreciate and value your comments.
Guest
