Cisco 1700 Series - Release Notes for Release 12.2(4)YA
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Table Of Contents
Release Notes for the Cisco 1700 Series Routers for Cisco IOS Release 12.2(4)YA
Determining Your Software Release
Upgrading to a New Software Release
New Hardware Features in Release 12.2(4)YA
New Software Features in Release 12.2(4)YA
New Software Features in Release 12.2(4)T
NT Firmware Upgrade to ASW3_8_129 for the ADSL Physical-Layer System
Fan Operation in Cisco 1700 Series Routers
Flash defaults to Flash:1 on Multipartition Flash
Peak Cell Rate and Sustainable Cell Rate Values
Resolved Caveats - Release 12.2(4)YA6
Resolved Caveats - Releases 12.2(4)YA1 and 12.2(4)YA2
Cisco IOS Software Documentation Set
Release 12.2 Documentation Set
Obtaining Technical Assistance
Contacting TAC by Using the Cisco TAC Website
Release Notes for the Cisco 1700 Series Routers for Cisco IOS Release 12.2(4)YA
October 20, 2003
These release notes describe new features and significant software components for the Cisco 1700 series routers that support Cisco IOS Release 12.2 T, up to and including Release 12.2(4)YA7. 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 Cross-Platform Release Notes for Cisco IOS Release 12.2 T located on CCO and the Documentation CD.
For a list of the software caveats that apply to Release 12.2(4)YA7, refer to the section "Caveats" and to the online Caveats for Cisco IOS Release 12.2 T document. The caveats document is updated for every 12.2 T maintenance release and is located on Cisco Connection Online (CCO) and the Documentation CD.
Contents
These release notes discuss the following topics:
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Obtaining Technical Assistance
System Requirements
This section describes the system requirements for Release 12.2(4)YA7 and includes the following sections:
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Memory Requirements
This section describes the memory requirements for the Cisco IOS feature sets supported by Cisco IOS Release 12.2(4)YA7 on the Cisco 1700 series routers.
Hardware Supported
Cisco IOS Release 12.2(4)YA7 supports the following Cisco 1700 series routers:
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The Cisco 1710, 1720, and 1721 routers run data images only. The Cisco 1750, 1750-2V, and 1750-4V routers run data or data-and-voice images, providing analog voice support. Cisco 1751, 1751-V, 1760, and 1760-V routers run data or data-and-voice images, providing digital and analog voice support.
For detailed descriptions of new hardware features and which features are supported on each router, see the "New and Changed Information" section. For descriptions of existing hardware features and supported modules, see the hardware installation guides, configuration and command reference guides, and additional documents specific to Cisco 1700 series routers, which are available on Cisco.com and the Documentation CD at the following location:
http://www.cisco.com/univercd/cc/td/doc/product/access/acs_mod/1700/index.htmThis URL is subject to change without notice. If it changes, point your web browser to CCO, and click the following path:
Cisco Product Documentation: Access Servers and Access Routers: Modular Access Routers: Cisco 1700 Series Routers: <platform_name>Determining Your Software Release
To determine the version of Cisco IOS software currently running on your Cisco 1700 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 versionCisco Internetwork Operating System SoftwareIOS (tm) C1700 Software (C1700-Y-MZ), Version 12.2(4)YA6, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1)Synched to technology version 12.2(5.4)TUpgrading to a New Software Release
For general information about upgrading to a new software release, see Software Installation and Upgrade Procedures located at: http://www.cisco.com/warp/public/130/upgrade_index.shtml.
Feature Sets
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 12.2(4)YA7 supports the same feature sets as Releases 12.2 and 12.2 T, but Release 12.2(4)YA7 include new features supported by the Cisco 1700 series routers.
Caution
Table 2 through Table 5 list the features and feature sets supported in Cisco IOS Release 12.2(4)YA7:
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The tables use the following conventions:
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Table 2 Feature List by Feature Set for Cisco 1710 Routers
Easy VPN
12.2(4)YA
Yes
Yes
New and Changed Information
The following sections list the new hardware and software features supported by the Cisco 1700 series routers for Release 12.2(4)YA7.
New Hardware Features in Release 12.2(4)YA
The following sections describe the new hardware features supported by the Cisco 1700 series routers for Release 12.2(4)YA.
Cisco 1721 Router
The Cisco 1721 data-only modular access router is an enhanced Cisco 1720 router that provides higher performance, additional functionality, and increased memory capacity. The router supports WAN access, VPN, and firewall technology for secure Internet, intranet, and extranet access. Cisco 1721 routers also support standards-based Institute of Electrical and Electronic Engineers (IEEE) 802.1Q VLAN routing, which enables enterprises to set up and route between multiple VLANs for additional security in an internal corporate network.
The Cisco 1721 router includes the following key hardware features:
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The Cisco 1721 router has the following hardware components:
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Cisco 1721 routers support any combination of one or two of the following WICs:
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New Software Features in Release 12.2(4)YA
The following sections describe the new software features supported by the Cisco 1700 series routers for Release 12.2(4)YA.
Cisco Easy VPN Client
Applications for routers (and other forms of broadband access devices) that provide high-performance connections to the Internet often require the security of virtual private network (VPN) connections with a high level of access authentication and the capability to encrypt data between two endpoints. However, establishing a VPN connection between two routers can be complex, and typically requires detailed coordination between network administrators to configure the router VPN parameters.
The Cisco Easy VPN client feature eliminates much of this work by implementing the Cisco Unity Client protocol, which allows most VPN parameters to be defined at a VPN 3000 concentrator, acting as an IPSec server. After network administrators configure the IPSec server, they can create a VPN connection with minimal configuration on an IPSec client (such as a Cisco 1700 series router). When the IPSec client initiates the VPN tunnel connection, the IPSec server transmits the IPSec policies to the IPSec client and creates the corresponding VPN tunnel connection.
New Software Features in Release 12.2(4)T
For information regarding the features supported in Cisco IOS Release 12.2 T, 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/ios122/122relnt/xprn122t/index.htm
This URL is subject to change without notice. If it changes, point your web browser to CCO, and click the following path:
Service & Support: Technical Documents: Cisco IOS Software: Release 12.2: Release Notes: Cross-Platform Release Notes (Cisco IOS Release 12.2T)
Limitations
Release 12.2(4)YA7 does not support Global system for mobile communication over frame relay (GSM-FR) on Cisco 1700 series routers on the Cisco 1700 series routers. (Also, see the "Caveats" section.)
Important Notes
The following sections contain important notes about Cisco IOS Release 12.2(4)YA7 that can apply to the Cisco 1700 series routers. (Also, see the "Caveats" section.)
NT Firmware Upgrade to ASW3_8_129 for the ADSL Physical-Layer System
Cisco IOS Release 12.2(4)YA and above requires an upgrade to Alcatel Microelectronics ASW3_8_129 firmware, which is an upgraded release of the NT firmware for the ADSL physical-layer system. The firmware implements a multi-mode modem that operates according to the ANSI T1.413, ITU G.992.1 and ITU G.992.2 ADSL standards. The firmware upgrade is a maintenance release of the ADSL-ASW_R3_x_x family, to incorporate support for single-line Utopia platforms.
The operation of the ASW3_8_129 runtime software is described in detail in the CTRLE Interface Specification 3.10 available on Cisco.com and the Documentation CD at the following location:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122relnt/1700/1700ya/alcatlfw.pdf
This URL is subject to change without notice. If it changes, point your web browser to CCO, and click the following path:
Service and Support: Technical Documents: Cisco IOS Software: Release 12.2: Release Notes: Cisco 1700 Series Routers: Cisco 1700 Series - Release 12.2(4)YA: Alcatel Modem Firmware ASW_3_8_129 Release Notes
Fan Operation in Cisco 1700 Series Routers
Cisco 1760 and 1760-V router fans are always on and Cisco 1710 routers do not contain a fan. However, the fans in Cisco 1720, 1721, 1750, and 1751 routers stay off until thermally activated.
Flash defaults to Flash:1 on Multipartition Flash
When using a multipartition flash card, the various flash partitions are referred to as "flash:1:", "flash:2:", etc. If you specify only "flash" in a multipartition flash, the parser assumes "flash:1:." For example, if you enter show flash all the parser defaults to "show flash:1: all" and only the flash information for the first partition displays. To see information for all flash partitions, enter show flash ?. This will list all of the valid partitions. Then enter show flash:xx: all on each valid partition.
Peak Cell Rate and Sustainable Cell Rate Values
On Cisco 1700 routers, specify the Peak Cell Rate (PCR) and Sustainable Cell Rate (SCR) as multiples of 32 Kbps. Other rates are treated as the next lower value of a multiple of 32. For example, an entered PCR value of 150 is considered 128.
Using the boot flash Command
Booting a Cisco 1700 series router with the commands boot flash or boot system flash results in unpredictable behavior. To work around this problem, be sure to enter a colon (:) following both commands (for example, boot flash: or boot system flash:.)
Caveats
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.
Caveats in Release 12.2 T are also in Release 12.2(4)YA7. For information on caveats in Cisco IOS Release 12.2 T, refer to the Caveats for Cisco IOS Release 12.2 T document. For information on caveats in Cisco IOS Release 12.2, refer to the Caveats for Cisco IOS Release 12.2 document. These documents list severity 1 and 2 caveats, and are located on CCO and the Documentation CD.
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Resolved Caveats - Release 12.2(4)YA6
Cisco IOS Release 12.2(4)YA6 is a rebuild release for Cisco IOS Release 12.2(4)YA. This section describes unexpected behavior that is fixed in Release 12.2(4)YA6.
Miscellaneous
CSCdz71127
Cisco routers and switches running Cisco IOS software and configured to process Internet Protocol version 4 (IPv4) packets are vulnerable to a Denial of Service (DoS) attack. A rare sequence of crafted IPv4 packets sent directly to the device may cause the input interface to stop processing traffic once the input queue is full. No authentication is required to process the inbound packet. Processing of IPv4 packets is enabled by default. Devices running only IP version 6 (IPv6) are not affected. A workaround is available.
Cisco has made software available, free of charge, to correct the problem.
This advisory is available at
http://www.cisco.com/warp/public/707/cisco-sa-20030717-blocked.shtml
CSCea02355
Cisco routers and switches running Cisco IOS software and configured to process Internet Protocol version 4 (IPv4) packets are vulnerable to a Denial of Service (DoS) attack. A rare sequence of crafted IPv4 packets sent directly to the device may cause the input interface to stop processing traffic once the input queue is full. No authentication is required to process the inbound packet. Processing of IPv4 packets is enabled by default. Devices running only IP version 6 (IPv6) are not affected. A workaround is available.
Cisco has made software available, free of charge, to correct the problem.
This advisory is available at
http://www.cisco.com/warp/public/707/cisco-sa-20030717-blocked.shtml
Resolved Caveats - Releases 12.2(4)YA1 and 12.2(4)YA2
This section describes unexpected behavior that is fixed in Releases 12.2(4)YA1 and 12.2(4)YA2.
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 1700 series 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 Cisco.com and the Documentation CD.
Use these release notes with the documents listed in the following sections:
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Release-Specific Documents
The following documents are specific to Release 12.2 and apply to Release 12.2(4)YA7. They are located on Cisco.com and the Documentation CD (under the heading Service & Support):
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Technical Documents: Cisco IOS Software: Release 12.2: Release Notes: Cisco 1700 Series Routers: Cisco 1700 Series - Release Notes for Release 12.2(4)YA
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Technical Documents: Cisco IOS Software: Release 12.2: Release Notes: Cisco IOS Release 12.2 T
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Technical Documents: Product Bulletins
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Technical Documents: Cisco IOS Software: Release 12.2: Caveats
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Platform-Specific Documents
Hardware installation guides, configuration and command reference guides, and additional documents specific to Cisco 1700 series routers are available on Cisco.com and the Documentation CD at the following location:
http://www.cisco.com/univercd/cc/td/doc/product/access/acs_mod/1700/index.htm
This URL is subject to change without notice. If it changes, point your web browser to CCO, and click the following path:
Cisco Product Documentation: Access Servers and Access Routers: Modular Access Routers: Cisco 1700 Series Routers: <platform_name>
Feature Modules
Feature modules describe new features supported by Release 12.2 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 12.2 feature modules, click this path (under the heading Service & Support): Technical Documents: Cisco IOS Software: Release 12.2: New Feature Documentation: New Features in 12.2-Based Limited Lifetime Releases: New Features in 12.2X Releases
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. The Cisco IOS software documentation set is shipped with your order in electronic form on the Documentation CD—unless you specifically ordered the printed versions.
Documentation Modules
Each module in the Cisco IOS documentation set consists of one or more configuration guides and one or more corresponding command references. Chapters in a configuration guide describe protocols, configuration tasks, and 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 Cisco.com and on the Documentation CD (under the heading Service & Support) at:
Technical Documents: Cisco IOS Software: Release 12.2: Configuration Guides and Command References
Release 12.2 Documentation Set
Table 6 lists the contents of the Cisco IOS Release 12.2 software documentation set, which is available in both electronic and printed form (under the heading Service & Support) on Cisco.com and on the Documentation CD:
Technical Documents: Cisco IOS Software: Release 12.2
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Obtaining Documentation
The following sections provide sources for obtaining documentation from Cisco Systems.
World Wide Web
The most current Cisco documentation is available on the World Wide Web at http://www.cisco.com. Translated documentation can be accessed at http://www.cisco.com/public/countries_languages.shtml.
Documentation CD
Cisco documentation and additional literature are available in a CD package, which ships with your product. The Documentation CD is updated monthly and may be more current than printed documentation. The CD 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 products 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.
For your convenience, many documents contain a response card behind the front cover for submitting your comments by mail. 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
The following sections provide sources for obtaining technical assistance from Cisco Systems.
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/
Cisco.com registered users who cannot resolve a technical issue by using the TAC online resource 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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Feedback