Table Of Contents
Release Notes for Cisco AS5200 Universal Access Servers for Cisco IOS Release 12.1
Determining the Software Version
Upgrading to a New Software Release
Deprecated and Replacement MIBs
Caveat CSCdr91706 and IOS HTTP Vulnerability
Enhancement to ppp ipcp Command
Cisco IOS Software Documentation Set
Cisco IOS Release 12.1 Documentation Set
Obtaining Technical Assistance
Contacting TAC by Using the Cisco TAC Website
Release Notes for Cisco AS5200 Universal Access Servers for Cisco IOS Release 12.1
January 2, 2001
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 Cisco AS5200 universal access servers support Cisco IOS Release 12.1(6). These release notes are updated to describe new memory requirements, hardware support, software platform deferrals, and changes to the microcode or modem code and related documents.
For a list of the software caveats that apply to Cisco IOS Release 12.1, see Caveats for Cisco IOS Release 12.1 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-Platform Release Notes for Cisco IOS Release 12.1 on CCO and the Documentation CD-ROM.
Contents
These release notes describe the following topics:
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System Requirements
This section describes the system requirements for Cisco IOS Release 12.1:
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Memory Recommendations
Memory recommendations for the Cisco AS5200 are presented in Table 1.
Hardware Supported
Cisco IOS Release 12.1 supports the Cisco AS5200. For detailed descriptions of the new hardware features, see the "New and Changed Information" section. Table 2 lists the interfaces supported by the Cisco A5200.
Table 2 Supported Interfaces for the Cisco AS5200
Ethernet (AUI)
MultiChannel Interface (Channelized E1/T1)
48/56/64 Kbps
1.544/2.048 Mbps
EIA/TIA-232
X.21
V.35
EIA/TIA-449
EIA-530
ISDN PRI
E1-G.703/G.704
Channelized T1
Channelized E1
Serial
1 The number in the "In" column indicates the Cisco IOS release when the interface was introduced. For example, (4) means an interface was introduced in Cisco IOS Release 12.1(4). If a cell in this column is empty, the interface was included in the initial base release.
2 The ATM-25 network modules require Cisco IOS Plus feature sets.
Determining the Software Version
To determine the version of Cisco IOS software running on your Cisco AS5200, log in to the Cisco AS5200 and enter the show version EXEC command:
router> show versionCisco Internetwork Operating System SoftwareIOS (tm) 12.1 Software c5200-i-l, Version 12.1(6), 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/pd/iosw/prodlit/957_pp.htm
Modem Code
Microcode software images are bundled with the system software image—with the exception of the Channel Interface Processor (CIP) microcode (all system software images). Bundling eliminates the need to store separate microcode images. When the router starts, the system software unpacks the microcode software bundle and loads the proper software on all the interface processor boards. Table 3 lists the current microcode versions for the Cisco AS5200.
You could have received a later version of modem code than the one bundled with the Cisco IOS software. The modem code in Flash memory is mapped to the modems. Unless you fully understand how Cisco IOS software uses modem code, it is important to keep the factory configuration.
The modem code release notes are on CCO and on the Documentation CD-ROM.
On CCO at:
Technical Documents: Documentation Home Page: Access Servers and Access Routers: Firmware and Portware Information
On the Documentation CD-ROM at:
Cisco Product Documentation: Access Servers and Access Routers:Firmware and Portware Information
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.
Caution
Table 4 lists the features and feature sets supported by the Cisco AS5200 in Cisco IOS Release 12.1 and uses the following conventions:
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New and Changed Information
The following is a list the new hardware and software feature categories supported by the Cisco AS5200 for Cisco IOS Release 12.1. These categories are broken down by feature in Table 4.
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MIBs
Current MIBs
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, Login to CCO and click Software Center: Network Mgmt Products: Cisco Network Management Toolkit: Cisco MIB.
Deprecated and Replacement 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 5.
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Important Information
The following section contains important notes about Cisco IOS Release 12.1(6) that can apply to the Cisco AS5200.
Caveat CSCdr91706 and IOS HTTP Vulnerability
A defect in multiple releases of Cisco IOS software will cause a Cisco router or switch to halt and reload if the IOS HTTP service is enabled, browsing to http://router-ip/anytext?/ is attempted, and the enable password is supplied when requested. This defect can be exploited to produce a denial of service (DoS) attack.
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. Customers are urged to upgrade to releases that are not vulnerable to this defect as shown in detail below.
This vulnerability can only be exploited if the enable password is known or not set.
You are strongly encouraged to read the complete advisory, which is available at http://www.cisco.com/warp/public/707/ioshttpserverquery-pub.shtml.
Enhancement to ppp ipcp Command
The ppp ipcp command, which supplies Domain Name System (DNS) or Windows Internet Naming Service (WINS) addresses during IP Control Protocol (IPCP) negotiation, has been enhanced with the reject and accept keywords. These keywords allow enabling or disabling support for the Microsoft IPCP extensions defined by RFC 1877.
Caveats
Caveats describe unexpected behavior in Cisco IOS software releases. Severity 1 caveats are the most serious caveats; severity 2 caveats are less serious. Severity 3 caveats are moderate caveats, and only select severity 3 caveats are included in the caveats document.
For information on caveats in Cisco IOS Release 12.1, see Caveats for Cisco IOS Release 12.1, which lists severity 1 and 2 caveats and select severity 3 caveats for Cisco IOS Release 12.1 and is located on CCO and the Documentation CD-ROM.
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Related Documentation
The following sections describe the documentation available for the Cisco AS5200. These documents consist of hardware and software installation guides, Cisco IOS configuration and command references, system error messages, and other documents.
Documentation is available as printed manuals or electronic documents.
Use these release notes with these documents:
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Release-Specific Documents
The following documents are specific to Release 12.1 and are located on CCO and the Documentation CD-ROM:
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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: Release Notes: Cross-Platform Release Notes
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Technical Documents
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See Caveats for Cisco IOS Release 12.1, which contain caveats applicable to all platforms for all maintenance releases of Release 12.1.
On CCO at:
Technical Documents: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 12.1: Caveats
On the Documentation CD-ROM at:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.1: Caveats
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Platform-Specific Documents
These documents are available for the Cisco AS5200 on CCO and the Documentation CD-ROM:
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You can reach Cisco AS5200 documentation on CCO at:
Technical Documents: Documentation Home Page: Access Servers and Access Routers: Access Servers: Cisco AS5200
You can reach Cisco AS5200 documentation on the Documentation CD-ROM at:
Cisco Product Documentation: Access Servers and Access Routers: Access Servers: Cisco AS5200
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 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
Cisco IOS Release 12.1 Documentation Set
Table 6 describes the contents of the Cisco IOS Release 12.0 software documentation set, which is available in electronic form, and in printed form if ordered.
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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
Note
Obtaining Documentation
The following sections provide sources for obtaining documentation from Cisco Systems.
World Wide Web
You can access the most current Cisco documentation on the World Wide Web at the following sites:
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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 and may be more current than printed documentation. The CD-ROM package is available as a single unit or as an annual subscription.
Ordering Documentation
Cisco documentation is available in the following ways:
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http://www.cisco.com/cgi-bin/order/order_root.pl
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http://www.cisco.com/go/subscription
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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 your comments.
Obtaining Technical Assistance
Cisco provides Cisco.com as a starting point for all technical assistance. Customers and partners can obtain documentation, troubleshooting tips, and sample configurations from online tools. For Cisco.com registered users, additional troubleshooting tools are available from the TAC website.
Cisco.com
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 provides a broad range of features and services to help customers and partners streamline business processes and improve productivity. Through Cisco.com, you can find information about Cisco and our networking solutions, services, and programs. In addition, you can resolve technical issues with online technical support, 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 can order products, check on the status of an order, access technical support, and view benefits specific to their relationships with Cisco.
To access Cisco.com, go to the following website:
http://www.cisco.com
Technical Assistance Center
The Cisco TAC website is available to all customers who need technical assistance with a Cisco product or technology that is under warranty or covered by a maintenance contract.
Contacting TAC by Using the Cisco TAC Website
If you have a priority level 3 (P3) or priority level 4 (P4) problem, contact TAC by going to the TAC website:
http://www.cisco.com/tac
P3 and P4 level problems are defined as follows:
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In each of the above cases, use the Cisco TAC website to quickly find answers to your questions.
To register for Cisco.com, go to the following website:
http://www.cisco.com/register/
If you cannot resolve your technical issue by using the TAC online resources, Cisco.com registered users can open a case online by using the TAC Case Open tool at the following website:
http://www.cisco.com/tac/caseopen
Contacting TAC by Telephone
If you have a priority level 1(P1) or priority level 2 (P2) problem, contact TAC by telephone and immediately open a case. To obtain a directory of toll-free numbers for your country, go to the following website:
http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml
P1 and P2 level problems are defined as follows:
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Guest
