Release Notes

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Release Notes for the Cisco 1700 Series Routers

for Cisco IOS Release 12.2(8)YL

August 1, 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(8)YL1. 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(8)YL1, 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:

• System Requirements, page 2

• New and Changed Information, page 8

• Limitations, page 10

• Important Notes, page 11

• Caveats, page 12

• Related Documentation, page 15

• Obtaining Documentation, page 16

• Obtaining Technical Assistance, page 17

Summary of content (20 pages)

PAGE 1
Release Notes for the Cisco 1700 Series Routers for Cisco IOS Release 12.2(8)YL August 1, 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(8)YL1.
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System Requirements System Requirements This section describes the system requirements for Release 12.2(8)YL1 and includes the following sections: • Memory Requirements, page 2 • Hardware Supported, page 4 • Determining the Software Version, page 4 • Upgrading to a New Software Release, page 5 • Feature Set Tables, page 5 Memory Requirements This section describes the memory requirements for the Cisco IOS feature sets supported by Cisco IOS Release 12.2(8)YL1 on the Cisco 1700 series routers.
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System Requirements Table 1 Recommended Memory for the Cisco 1700 Series Routers Image Name Feature Set Image Flash DRAM Memory Memory Cisco 1700 IOS IP/ADSL IP/ADSL c1700-y7-mz 8 MB 32 MB Cisco 1721, Cisco 1700 IOS IP Plus ADSL/IPX/ IP Plus ADSL/IPX/ AT/IBM/FW/IDS Cisco 1751, AT/IBM/FW/IDS IPSec 56 IPSec 56 and Cisco 1760 c1700-bk8no3r2sy7-mz 16 MB 64 MB Cisco 1750, Cisco 1700 IOS IP Plus Voice Cisco 1751, and Cisco 1760 c1700-sv3y-mz 16 MB 48 MB Cisco 1700 IOS IP Plus ADSL/IPX/ IP Plus
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System Requirements Table 1 Recommended Memory for the Cisco 1700 Series Routers Platform Image Name Feature Set Image Flash DRAM Memory Memory Cisco 1751 and Cisco 1760 (Continued) Cisco 1700 IOS IP Plus ADSL/Voice/ FW/IDS IP Plus ADSL/Voice/ FW/IDS c1700-o3sv3y7-mz 16 MB 64 MB Cisco 1700 IOS IP Plus ADSL/VOX/ FW/IDS IP Plus ADSL/VOX/ FW/IDS c1700-o3sv8y7-mz 16 MB 64 MB Cisco 1700 IOS IP Plus ADSL/Voice IP Plus ADSL/Voice c1700-sv3y7-mz 16 MB 64 MB Cisco 1700 IOS IP Plus VOX c1700-s
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System Requirements Upgrading 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 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. Release 12.2(8)YL1 supports the same feature sets as Releases 12.2 and 12.
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System Requirements Table 2 Feature List by Feature Set for Cisco 1710 Routers Feature In Feature Set IP IPX/AT/IBM/ FW/IDS Plus IPSec 3DES IP Plus FW/IDS IPSec 3DES Yes Yes No No Security Software Based LZ Compression with Hardware Encryption 12.
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System Requirements Table 4 Feature List by Feature Set for Cisco 1721, 1751, and 1760 Routers Feature In Feature Set IP Plus ADSL/IPX/ AT/IBM/FW/IDS IPSec 56 Security Software Based LZ Compression with Hardware Encryption 12.2(8)YL Yes Voice Voice Support on Digital T1/E1 Interfaces Table 5 No Feature List by Feature Set for Cisco 1750, 1751, and 1760 Routers Feature In Feature Set IP Plus Voice Security Software Based LZ Compression with Hardware Encryption 12.
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New and Changed Information Table 6 Feature List by Feature Set for Cisco 1751 and 1760 Routers, Part 2 of 3 Feature In Feature Set IP Plus IP Plus ADSL/Voice ADSL/VOX IPSec 56 IPSec 56 IP Plus ADSL/Voice / FW/IDS IPSec 3DES IP Plus IP Plus ADSL/VOX/ IP Plus FW/IDS ADSL/Voice ADSL/VOX/ IPSec 3DES IPSec 3DES IPSec 3DES Yes Yes Yes Yes Yes Yes No Yes No Yes No Yes Security Software Based LZ Compression with Hardware Encryption 12.
PAGE 9
New and Changed Information Software Based LZ Compression with Hardware Encryption This feature enables the Cisco 1700 Series routers to support Layer 3 compression (through use of the Lempel-Ziv, or LZ, standard) in software with hardware-based IPSec encryption. Previously, this combination could not be supported. Benefits One benefit of this feature is that, through LZ compression, encrypted packets being transmitted are decreased in size, resulting in reduced WAN bandwidth demands.
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Limitations See the following Cisco IOS release notes for further information regarding these features: • Release Notes for the Cisco 1700 Series Routers for Cisco IOS Release 12.2(4)YB • Release Notes for the Cisco 1700 Series Routers for Cisco IOS Release 12.2(4)XM • Release Notes for the Cisco 1700 Series Routers for Cisco IOS Release 12.2(4)XW • Release Notes for the Cisco 1700 Series Routers for Cisco IOS Release 12.
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Important Notes Important Notes The following sections contain important notes about Cisco IOS Release 12.2.(8)YL that can apply to the Cisco 1700 series routers. (Also, see the “Caveats” section on page 12.) T1/E1 VWIC Support on Cisco 1751 and 1760 Routers The Cisco 1751 and 1760 routers no longer need a voice image to support data applications on T1/E1 VWICs. 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.
PAGE 12
Caveats 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(8)YL1. 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.
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Caveats Open Caveats - Release 12.2(8)YL This section describes unexpected behavior in Release 12.2.(8)YL. Miscellaneous CSCdx19900 Packet greater than 5000 bytes fails when SW compression with HW encryption is done. CSCdx32291 Crypto console error generated when tunnel is initiated via EM module. CSCdx63850 Broadcast address is being sent as MAC Address in the Cisco 1720, 1721 and 1750 routers when an Ethernet WIC is in slot 1.
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Caveats CSCdy07777 A traceback appears on the router when MGCP calls are made with RSVP, causing the call to fail. This happens when using Call Admission Control with RSVP for MGCP calls. A work-around for this problem is to create a dummy dial-peer as follows: dial-peer voice 1000 voip req-qos guaranteed-delay CSCin10786 Crash observed when T1 card is in slot 0 and rqnt is sent. CSCin11036 IVR application is not played in MGCP when sent through CRCX.
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Related Documentation CSCdy13841 After “service-policy output x” is configured on CE's outbound interface to PE, multi-vrf can only ping the first VRF and the pings to remaining VRFs will fail. Problem remains even after “service-policy output x” is removed. Related Documentation The following sections describe the documentation available for the Cisco 1700 series routers.
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Obtaining Documentation 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.
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Obtaining Technical Assistance Documentation Feedback You can submit comments electronically on Cisco.com. In the Cisco Documentation home page, click the Fax or Email option in the “Leave Feedback” section at the bottom of the page. You can e-mail your comments to bug-doc@cisco.com.
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Obtaining Technical Assistance Cisco TAC inquiries are categorized according to the urgency of the issue: • Priority level 4 (P4)—You need information or assistance concerning Cisco product capabilities, product installation, or basic product configuration. • Priority level 3 (P3)—Your network performance is degraded. Network functionality is noticeably impaired, but most business operations continue.
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Obtaining Technical Assistance This document is to be used in conjunction with the documents listed in the “Related Documentation” section. CCVP, the Cisco logo, and Welcome to the Human Network are trademarks of Cisco Systems, Inc.; Changing the Way We Work, Live, Play, and Learn is a service mark of Cisco Systems, Inc.
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Obtaining Technical Assistance Release Notes for the Cisco 1700 Series Routers for Cisco IOS Release 12.