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Release Notes for the Cisco 800 and SOHO 90 Series Routers for Cisco IOS Release 12.2(8)YN

Table Of Contents

Release Notes for the Cisco 800 and SOHO 90 Series Routers for Cisco IOS Release 12.2(8)YN

Contents

System Requirements

Memory Requirements

Hardware Supported

Determining the Software Version

Upgrading to a New Software Release

Feature Set Tables

New and Changed Information

New Hardware Features in Release 12.2(8)YN

New Software Features in Release 12.2(8)YN

Flash File System Squeeze Utility

Backup Dial Through Console Port

New Software Features in Release 12.2(8)T

Limitations

Backup Dial Through Console Port

Caveats

Resolved Caveats - Release 12.2(8)YN2

Miscellaneous

Open Caveats - Release 12.2(8)YN

Miscellaneous

Related Documentation

Release-Specific Documents

Platform-Specific Documents

Obtaining Documentation

World Wide Web

Documentation CD-ROM

Ordering Documentation

Documentation Feedback

Obtaining Technical Assistance

Cisco.com

Technical Assistance Center

Cisco TAC Web Site

Cisco TAC Escalation Center


Release Notes for the Cisco 800 and SOHO 90 Series Routers for Cisco IOS Release 12.2(8)YN


July 30, 2003

These release notes describe new features and significant software components for the Cisco 831 and 837 routers, and Cisco SOHO 91, and SOHO 97 routers that support Cisco IOS Release 12.2 T, up to and including Release 12.2(8)YN2. 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)YN2, 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

New and Changed Information

Limitations

Caveats

Related Documentation

Obtaining Documentation

Obtaining Technical Assistance

System Requirements

This section describes the system requirements for Release 12.2(8)YN2 and includes the following sections:

Memory Requirements

Hardware Supported

Determining the Software Version

Upgrading to a New Software Release

Feature Set Tables

Memory Requirements

This section describes the memory requirements for the Cisco IOS feature sets supported by Cisco IOS Release 12.2(8)YN2 on the Cisco 831, 837, SOHO 91, and SOHO 97 routers.

Table 1 Recommended Memory for the Cisco 831, 837, SOHO 91, and SOHO 97 Routers 

Platforms
Image Name
Feature Set
Image
Flash Memory
DRAM Memory

Cisco 831

Cisco 831 IOS IP/FW/PLUS 3DES

IP/FW/PLUS 3DES

c831-k9o3sy6-mz

8 MB

32 MB

Cisco 831 IOS IP/FW 3DES

IP/FW 3DES

c831-k9o3y6-mz

8 MB

32 MB

Cisco 837

Cisco 837 IOS IP/FW/PLUS 3DES

IP/FW/PLUS 3DES

c837-k9o3sy6-mz

8 MB

32 MB

Cisco 837 IOS IP/FW 3DES

IP/FW 3DES

c837-k9o3y6-mz

8 MB

32 MB

Cisco SOHO 91

Cisco SOHO 91 IP/FW 3DES

IP/FW 3DES

soho91-k9oy6-mz

8 MB

32 MB

Cisco SOHO 97

Cisco SOHO 97 IP/FW 3DES

IP/FW 3DES

soho97-k9oy1-mz

8 MB

32 MB


Hardware Supported

Cisco IOS Release 12.2(8)YN2 supports the following Cisco 831, 837, SOHO 91, and SOHO 97 routers:

Cisco 831 Routers

Cisco 837 Routers

Cisco SOHO 91 Routers

Cisco SOHO 97 Routers

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 831, 837, SOHO 91, and SOHO 97 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_fix/800/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 DocumentationAccess Servers and Access RoutersFixed Access Cisco 800 Series Routers<platform_name>

Determining the Software Version

To determine the version of Cisco IOS software currently running on your Cisco 831, 837, SOHO 91, and SOHO 97 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) C837 Software (C837-K9O3SY6-M), Version 12.2(8)YN2, EARLY DEPLOYMENT RELEASE 
SOFTWARE (fc1) Synched to technology version 12.2(11.2u)T

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)YN2 supports the same feature sets as Releases 12.2 and 12.2(8)T, but Release 12.2(8)YN2 includes new features supported by the Cisco 831, 837, SOHO 91, and SOHO 97 routers.


Caution Cisco IOS images with strong encryption (including, but not limited to 168-bit (3DES) data encryption feature sets) are subject to United States government export controls and have limited distribution. Strong encryption images to be installed outside the United States are likely to require an export license. Customer orders can be denied or subject to delay due to United States government regulations. When applicable, the purchaser/user must obtain local import and use authorizations for all encryption strengths. Please contact your sales representative or distributor for more information, or send an e-mail to export@cisco.com.

Table 2 lists the features and feature sets supported in Cisco IOS Release 12.2(8)YN2.

The table uses the following conventions:

Yes—The feature is supported in the software image.

No—The feature is not supported in the software image.

In—The number in the "In" column indicates the Cisco IOS release in which the feature was introduced. For example, "12.2(8)YN" means the feature was introduced in 12.2(8)YN. If a cell in this column is empty, the feature was included in a previous release or the initial base release.


Note These feature set tables only contain a selected list of features, which are cumulative for Release 12.2(8)nn early deployment releases only (nn identifies each early deployment release). The tables do not list all features in each image—additional features are listed in the Cross-Platform Release Notes for Cisco IOS Release 12.2 T  and Release 12.2 T Cisco IOS documentation.


Table 2 Feature List by Feature Set for Cisco 831, and SOHO 91 Routers

Feature
In
Feature Set
   
IP
IP PLUS
   
Cisco 831 Routers
Cisco SOHO 91 Routers
Cisco 831 Routers
Hardware Features
       

10/100 Switch - 4 port, unmanaged

12.2.(8)YN

Yes

Yes

Yes

Switch queueing mechanism to enable QoS, fair queueing with priority queues.

12.2.(8)YN

Yes

No

Yes

Switch PHY to allow auto MDI- MDX

12.2.(8)YN

Yes

Yes

Yes

Aux function over console port

12.2.(8)YN

Yes

Yes

Yes

Support to boot from any IOS image in Flash

12.2.(8)YN

Yes

Yes

Yes

Hardware assisted encryption for 3DES

12.2.(8)YN

Yes

No

Yes

Software Features
       
Layer 3 and Encapsulation Support
       

IP routing, IRB

12.2.(8)YN

Yes

Yes

Yes

EIGRP

12.2.(8)YN

No

No

Yes

NAT, PAT with H.323 support

12.2.(8)YN

Yes

Yes

Yes

NAT IPSEC pass through single or multi user

12.2.(8)YN

Yes

Yes

Yes

TCP MSS intercept and adjustment

12.2.(8)YN

Yes

Yes

Yes

IPCP negotiated address, netmask, DNS and WINS

12.2.(8)YN

Yes

Yes

Yes

IPCP subnet delivery (connecting to DHCP and LAN configuration)

12.2.(8)YN

Yes

Yes

Yes

RIPv2

12.2.(8)YN

Yes

Yes

Yes

DHCP client, relay and server

12.2.(8)YN

Yes

Yes

Yes

Policy based routing

12.2.(8)YN

Yes

Yes

Yes

GRE

12.2.(8)YN

Yes

Yes

Yes

QoS
       

LLQ

12.2.(8)YN

Yes

No

Yes

WRED

12.2.(8)YN

No

No

Yes

CBTS

12.2.(8)YN

No

No

Yes

CAR

12.2.(8)YN

No

No

Yes

Security and Connectivity
       

Full syslog support

12.2.(8)YN

No

No

Yes

Lock and Key

12.2.(8)YN

No

No

Yes

AAA With Radius and TACACS+

12.2.(8)YN

No

No

Yes

AAA With TACACS+

12.2.(8)YN

No

Yes

No

Easy VPN Phase 1

12.2.(8)YN

Yes

No

Yes

Easy VPN Phase 2

12.2.(8)YN

Yes

No

Yes

SSH for secure remote management (no port mapping support required)

12.2.(8)YN

Yes

No

Yes

Firewall features phase 1 and 2 excluding IDS

12.2.(8)YN

Yes

Yes

Yes

Payload PPP compression (STAC)

12.2.(8)YN

Yes

Yes

Yes

Access Resilience and Redundancy
       

Dial backup over console port

12.2.(8)YN

Yes

No

Yes

ISDN TA (Hayes Compliance)

12.2(8)YN

Yes

No

Yes

HSRP

12.2.(8)YN

No

No

Yes

Interface Support
       

Numbered and unnumbered interfaces

12.2.(8)YN

Yes

Yes

Yes

Ethernet support

12.2.(8)YN

Yes

Yes

Yes

Static routes

12.2.(8)YN

Yes

Yes

Yes

Multicast
       

IP Multicast proxy

12.2.(8)YN

Yes

Yes

Yes

PIM Sparse mode

12.2.(8)YN

No

No

Yes

Management Functions
       

Remote upgrade ability of IOS

12.2.(8)YN

Yes

Yes

Yes

SA Agent support

12.2.(8)YN

No

No

No

Named access lists

12.2.(8)YN

Yes

Yes

Yes

Telnet client and server

12.2.(8)YN

Yes

Yes

Yes

Ability to manage IOS and CRWS upgrade separately

12.2.(8)YN

Yes

Yes

Yes

Management Information Bases (MIBs)
     

Yes

Chassis MIB

12.2.(8)YN

Yes

Yes

Yes

SNMP MIB 2

12.2.(8)YN

Yes

Yes

Yes

IOS protocols MIB

12.2.(8)YN

Yes

Yes

Yes

Interface MIBs

12.2.(8)YN

Yes

Yes

Yes

Entity MIB, Syslog MIB, Queue MIB, Mempool MIB, Image MIB

12.2.(8)YN

Yes

Yes

Yes

Support for all existing MIBs for ADSL models

12.2.(8)YN

Yes

Yes

Yes

Installation/Configuration
       

CRWS support

12.2.(8)YN

Yes

Yes

Yes

Config Express

12.2.(8)YN

Yes

Yes

Yes

CiscoView, Cisco Resource Manager Essentials

12.2.(8)YN

Yes

Yes

Yes

IE2100 support

12.2.(8)YN

Yes

Yes

Yes

IP Routing
       

GRE Keep Alive in Process Switch Mode

12.2.(8)YN

Yes

No

Yes


Table 3 Feature List by Feature Set for Cisco 837, and SOHO 97 Routers

Feature
In
Feature Set
   
IP
IP PLUS
   
Cisco 837 Routers
Cisco SOHO 97 Routers
Cisco 837 Routers
Hardware Features
       

10/100 Switch - 4 port, unmanaged

12.2.(8)YN

Yes

Yes

Yes

Switch queueing mechanism to enable QoS, fair queueing with priority queues

12.2.(8)YN

Yes

No

Yes

Switch PHY to allow auto MDI- MDX

12.2.(8)YN

Yes

Yes

Yes

Aux function over console port

12.2.(8)YN

Yes

Yes

Yes

Support to boot from any IOS image in Flash

12.2.(8)YN

Yes

Yes

Yes

Hardware assisted encryption for 3DES

12.2.(8)YN

No

No

Yes

Software Features
       
ADSL Features
       

EOC message sets support

12.2.(8)YN

Yes

Yes

Yes

Dying gasp

12.2.(8)YN

Yes

Yes

Yes

G.lite, G.DMT and ANSI T1.413

12.2.(8)YN

Yes

Yes

Yes

ADSL over POTS

12.2.(8)YN

Yes

Yes

Yes

Console port

12.2.(8)YN

Yes

Yes

Yes

ATM Features
       

Per VC queueing

12.2.(8)YN

Yes

Yes

Yes

Per VC traffic shaping

12.2.(8)YN

Yes

Yes

Yes

ATM VBRnrt, UBR, CBR

12.2.(8)YN

Yes

Yes

Yes

ATM Fault Management OAM (F5) segment CC and segment and end-2-end loopback and ILMI support

12.2.(8)YN

Yes

Yes

Yes

10 VC's, PVC

12.2.(8)YN

Yes

Yes

Yes

Support for VBR -rt

12.2.(8)YN

Yes

No

Yes

Fine granularity for PCR and SCR shaping for all traffic classes

12.2.(8)YN

Yes

No

Yes

Layer 3 and Encapsulation Support
       

IP routing, IRB

12.2.(8)YN

Yes

Yes

Yes

EIGRP

12.2.(8)YN

No

No

Yes

NAT, PAT with H.323 support

12.2.(8)YN

Yes

Yes

Yes

NAT IPSEC pass through single or multi user

12.2.(8)YN

Yes

Yes

Yes

RFC 2684 routed and bridged

12.2.(8)YN

Yes

Yes

Yes

PPPoE, PPPoA

12.2.(8)YN

Yes

Yes

Yes

TCP MSS intercept and adjustment

12.2.(8)YN

Yes

Yes

Yes

IPCP negotiated address, netmask, DNS and WINS

12.2.(8)YN

Yes

Yes

Yes

IPCP subnet delivery (connecting to DHCP and LAN configuration)

12.2.(8)YN

Yes

Yes

Yes

RIPv2

12.2.(8)YN

Yes

Yes

Yes

DHCP client, relay and server

12.2.(8)YN

Yes

Yes

Yes

Policy based routing

12.2.(8)YN

Yes

Yes

Yes

GRE

12.2.(8)YN

Yes

Yes

Yes

QoS
       

LFI

12.2.(8)YN

No

No

Yes

LLQ

12.2.(8)YN

Yes

No

Yes

TX Ring adjustment

12.2.(8)YN

No

No

Yes

WRED

12.2.(8)YN

No

No

Yes

CBTS

12.2.(8)YN

No

No

Yes

CAR

12.2.(8)YN

No

No

Yes

Security and Connectivity
       

Full syslog support

12.2.(8)YN

No

No

Yes

Lock and Key

12.2.(8)YN

No

No

Yes

AAA With Radius and TACACS+

12.2.(8)YN

No

No

Yes

Easy VPN Phase 1

12.2.(8)YN

Yes

No

Yes

Easy VPN Phase 2

12.2.(8)YN

Yes

No

Yes

SSH for secure remote management (no portmapping support required)

12.2.(8)YN

Yes

No

Yes

Firewall features phase 1 and 2 excluding IDS

12.2.(8)YN

Yes

Yes

Yes

Firewall features phase 1

12.2.(8)YN

No

Yes

No

Payload PPP compression (STAC)

12.2.(8)YN

Yes

Yes

No

Access Resilience and Redundancy
       

Dial backup over console port

12.2.(8)YN

Yes

No

Yes

ISDN TA (Hayes Compliance)

12.2(8)YN

Yes

No

Yes

HSRP

12.2.(8)YN

No

No

Yes

Interface Support
       

Numbered and unnumbered interfaces

12.2.(8)YN

Yes

Yes

Yes

DSL support

12.2.(8)YN

Yes

Yes

Yes

Ethernet support

12.2.(8)YN

Yes

Yes

Yes

Static routes

12.2.(8)YN

Yes

Yes

Yes

Multicast
       

IP Multicast proxy

12.2.(8)YN

Yes

Yes

Yes

PIM Sparse mode

12.2.(8)YN

No

No

Yes

Management Functions
       

Remote upgrade ability of IOS

12.2.(8)YN

Yes

Yes

Yes

SA Agent support

12.2.(8)YN

Yes

Yes

Yes

Named access lists

12.2.(8)YN

Yes

Yes

Yes

Telnet client and server

12.2.(8)YN

Yes

Yes

Yes

Ability to manage IOS and CRWS upgrade separately

12.2.(8)YN

Yes

Yes

Yes

DSLAM Interoperability
       

Alcatel ASAM 1000 and 7300 series

12.2.(8)YN

Yes

Yes

Yes

Cisco 62xx with NI-2 and 8 port ADSL over ISDN linecard

12.2.(8)YN

Yes

Yes

Yes

Cisco 62xx with NI-2 and Flexi line cards 4 and 8 port ADSL over POTS

12.2.(8)YN

Yes

Yes

Yes

Cisco 61xx with NI-2 and Flexi line cards 4 and 8 port ADSL over POTS

12.2.(8)YN

Yes

Yes

Yes

Lucent Stinger with Globespan line cards for ADSL over POTS

12.2.(8)YN

Yes

Yes

Yes

ECI HiFocus 120 and 240 DSLAM v4.0 or newer with ADI 918 and ADI930 chipsets

12.2.(8)YN

Yes

Yes

Yes

Management Information Bases (MIBs)
       

ATM MIB

12.2.(8)YN

Yes

Yes

Yes

ADSL Line MIB

12.2.(8)YN

Yes

Yes

Yes

ADSL DMT Line MIB

12.2.(8)YN

Yes

Yes

Yes

Chassis MI

12.2.(8)YN

Yes

Yes

Yes

SNMP MIB 2

12.2.(8)YN

Yes

Yes

Yes

IOS protocols MIB

12.2.(8)YN

Yes

Yes

Yes

Interface MIBs

12.2.(8)YN

Yes

Yes

Yes

Entity MIB, Syslog MIB, Queue MIB, Mempool MIB, Image MIB

12.2.(8)YN

Yes

Yes

Yes

Support for all existing MIBs for ADSL models

12.2.(8)YN

Yes

Yes

Yes

Installation/Configuration
       

CRWS support

12.2.(8)YN

Yes

Yes

Yes

Config Express

12.2.(8)YN

Yes

Yes

Yes

CiscoView, Cisco Resource Manager Essentials

12.2.(8)YN

Yes

Yes

Yes

IE2100 support

12.2.(8)YN

Yes

Yes

Yes


New and Changed Information

The following sections list the new hardware and software features supported by the Cisco 831, 837, SOHO 91, and SOHO 97 routers for Release 12.2(8)YN2.

New Hardware Features in Release 12.2(8)YN

The Cisco 831, 837, SOHO 91, and SOHO 97 have the following additional features over existing broadband routers:

A 4-port Ethernet switch.

Hardware encryption coprocessor.

Virtual Aux port that uses the same physical port as the console port.

A newer MPC857DSL processor.

New Software Features in Release 12.2(8)YN

The following sections describe the new software features supported by the Cisco 831, 837, SOHO 91, and SOHO 97 routers for Release 12.2(8)YN.

Flash File System Squeeze Utility

When a flash memory device is full, the files must be rearranged so the space used by the deleted files can be reclaimed. The "squeeze" feature erases all the deleted files from the router's file system and copies all the valid files from the beginning of the flash memory. The squeeze operation can take as long as several minutes because it involves erasing and rewriting almost an entire flash memory space. To enable this feature, the entire flash device, including any partitions, has to be completely erased. There is a provision in the erase command to disable this squeeze utility.

Backup Dial Through Console Port

Backup Dial Through Console Port (Dial-on-Demand Routing-DDR) backup is a method of bringing up an alternate link should the primary WAN link fail. The router configured for DDR backup recognizes that the connection to the remote site has been lost, and initiates a DDR connection to the remote site using the modem setup via auxiliary port. This feature provides protection against WAN downtime by allowing configuration of a backup modem line connection.

When backup dial is enabled, and DDR backup is configured, the router recognizes that the WAN connection is lost, and initiates a DDR connection to the remote site using the modem setup via auxiliary port. Once the primary (WAN) link is up, the router diverts the traffic back to the WAN media.

New Software Features in Release 12.2(8)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

Backup Dial Through Console Port

Since both the console port and auxiliary port in the IOS configuration correspond to the same physical RJ-45 port, both ports cannot be activated at the same time. A CLI is needed to enable/disable either one of the ports.

If the backup dial configuration is enabled through NVRAM, the console port is not available. Use the reverse telnet command to disable the back up dial feature and access the router through the console port again. If the telnet command is not used, the router must be rebooted to make the console port available.

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)YN2. 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.


Note If you have an account with Cisco.com, you can also use the Bug Toolkit to find select caveats of any severity. To reach the Bug Toolkit, log in toCisco.com and click Service & Support: Technical Assistance Center: Tool Index: Bug Toolkit. Another option is to go to http://www.cisco.com/cgi-bin/Support/Bugtool/launch_bugtool.pl


Resolved Caveats - Release 12.2(8)YN2

Cisco IOS Release 12.2(8)YN2 is a rebuild release for Cisco IOS Release 12.2(8)YN. This section describes unexpected behavior that is fixed in Release 12.2(8)YN2.

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

Open Caveats - Release 12.2(8)YN

Miscellaneous

CSCdy67155

Extra packets sent during performance testing causes test failure.

Workaround:

There is no workaround proposed as of now.

CSCdz01314

Interface async1 (console/aux) generated CRC erros at input.

Workaround:

There is no workaround proposed as of now.

CSCdy50090

Second copy of SAs for E1 does not show with IPSEC/GRE configuration.

Workaround:

There is no workaround proposed as of now.

CSCdy04573

CDP-4-DUPLEX_MISMATCH message with auto duplex configured in peer side.

Configure the global command no cdp advertise-v2 or

Disable CDP on the complaining interface(s) or

Change to Error Syslog level

Related Documentation

The following sections describe the documentation available for the Cisco 831, 837, SOHO 91, and SOHO 97 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:

Release-Specific Documents

Platform-Specific Documents

Release-Specific Documents

The following documents are specific to Release 12.2 and apply to Release 12.2(8)YN2. They are located on Cisco.com and the Documentation CD (under the heading Service & Support):

To reach the Cross-Platform Release Notes for Cisco IOS Release 12.2 T, click this path:

Technical Documents: Cisco IOS Software: Release 12.2: Release Notes: Cisco IOS  Release 12.2 T 

To reach product bulletins, field notices, and other release-specific documents, click this path:

Technical Documents: Product Bulletins 

To reach the Caveats for Cisco IOS Release 12.2 and Caveats for Cisco IOS Release 12.2 T documents, which contain caveats applicable to all platforms for all maintenance releases of Release 12.2, click this path:

Technical Documents: Cisco IOS Software: Release 12.2: Caveats 


Note If you have an account with Cisco.com, you can also use the Bug Toolkit to find select caveats of any severity. To reach the Bug Toolkit, log in toCisco.com and click Service & Support: Technical Assistance Center: Tool Index: Bug Toolkit. Another option is to go to http://www.cisco.com/cgi-bin/Support/Bugtool/launch_bugtool.pl


Platform-Specific Documents

Hardware installation guides, configuration and command reference guides, and additional documents specific to Cisco 831, 837, SOHO 91, and SOHO 97 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_fix/800/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: Fixed Access RoutersCisco 800 Series Routers: <platform_name>

Obtaining Documentation

These sections explain how to obtain documentation from Cisco Systems.

World Wide Web

You can access the most current Cisco documentation on the World Wide Web at this URL:

http://www.cisco.com

Translated documentation is available at this URL:

http://www.cisco.com/public/countries_languages.shtml

Documentation CD-ROM

Cisco documentation and additional literature are available in a Cisco Documentation CD-ROM package, which is shipped 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 through an annual subscription.

Ordering Documentation

You can order Cisco documentation in these ways:

Registered Cisco.com users (Cisco direct customers) can order Cisco product documentation from the Networking Products MarketPlace:

http://www.cisco.com/cgi-bin/order/order_root.pl

Registered Cisco.com users can order the Documentation CD-ROM through the online Subscription Store:

http://www.cisco.com/go/subscription

Nonregistered Cisco.com users can order documentation through a local account representative by calling Cisco Systems Corporate Headquarters (California, U.S.A.) at 408 526-7208 or, elsewhere in North America, by calling 800 553-NETS (6387).

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.

You can submit your comments by mail by using the response card behind the front cover of your document or by writing to the following address:

Cisco Systems
Attn: Document Resource Connection
170 West Tasman Drive
San Jose, CA 95134-9883

We appreciate your comments.

Obtaining Technical Assistance

Cisco provides Cisco.com as a starting point for all technical assistance. Customers and partners can obtain online documentation, troubleshooting tips, and sample configurations from online tools by using the Cisco Technical Assistance Center (TAC) Web Site. Cisco.com registered users have complete access to the technical support resources on the Cisco TAC Web Site.

Cisco.com

Cisco.com is the foundation of a suite of interactive, networked services that provides immediate, open access to Cisco information, networking solutions, services, programs, and resources at any time, from anywhere in the world.

Cisco.com is a highly integrated Internet application and a powerful, easy-to-use tool that provides a broad range of features and services to help you with these tasks:

Streamline business processes and improve productivity

Resolve technical issues with online support

Download and test software packages

Order Cisco learning materials and merchandise

Register for online skill assessment, training, and certification programs

If you want to obtain customized information and service, you can self-register on Cisco.com. To access Cisco.com, go to this URL:

http://www.cisco.com

Technical Assistance Center

The Cisco Technical Assistance Center (TAC) is available to all customers who need technical assistance with a Cisco product, technology, or solution. Two levels of support are available: the Cisco TAC Web Site and the Cisco TAC Escalation Center.

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.

Priority level 2 (P2)—Your production network is severely degraded, affecting significant aspects of business operations. No workaround is available.

Priority level 1 (P1)—Your production network is down, and a critical impact to business operations will occur if service is not restored quickly. No workaround is available.

The Cisco TAC resource that you choose is based on the priority of the problem and the conditions of service contracts, when applicable.

Cisco TAC Web Site

You can use the Cisco TAC Web Site to resolve P3 and P4 issues yourself, saving both cost and time. The site provides around-the-clock access to online tools, knowledge bases, and software. To access the Cisco TAC Web Site, go to this URL:

http://www.cisco.com/tac

All customers, partners, and resellers who have a valid Cisco service contract have complete access to the technical support resources on the Cisco TAC Web Site. The Cisco TAC Web Site requires a Cisco.com login ID and password. If you have a valid service contract but do not have a login ID or password, go to this URL to register:

http://www.cisco.com/register/

If you are a Cisco.com registered user, and you cannot resolve your technical issues by using the Cisco TAC Web Site, you can open a case online by using the TAC Case Open tool at this URL:

http://www.cisco.com/tac/caseopen

If you have Internet access, we recommend that you open P3 and P4 cases through the Cisco TAC Web Site.

Cisco TAC Escalation Center

The Cisco TAC Escalation Center addresses priority level 1 or priority level 2 issues. These classifications are assigned when severe network degradation significantly impacts business operations. When you contact the TAC Escalation Center with a P1 or P2 problem, a Cisco TAC engineer automatically opens a case.

To obtain a directory of toll-free Cisco TAC telephone numbers for your country, go to this URL:

http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml

Before calling, please check with your network operations center to determine the level of Cisco support services to which your company is entitled: for example, SMARTnet, SMARTnet Onsite, or Network Supported Accounts (NSA). When you call the center, please have available your service agreement number and your product serial number.