Release Notes for the Cisco 800 Series Routers and Cisco SOHO 70 Series Routers for Cisco IOS Release 12.2(11)YU
Available Languages
Table Of Contents
Determining the Software Version
Upgrading to a New Software Release
New Software Features in Release 12.2(11)YU
Caller ID for Spain and Austria
ADSL LED Blinking When DSL Line Trains
New Software Features in Release 12.2 T
Resolved Caveats - Release 12.2(11)YU1
Open Caveats - Release 12.2(11)YU
Resolved Caveats - Release 12.2(11)YU
Cisco 800 Series and SOHO 70 Series Routers
Obtaining Technical Assistance
Release Notes for the Cisco 800 Series Routers and Cisco SOHO 70 Series Routers for Cisco IOS Release 12.2(11)YU
July 28, 2003
These release notes for the Cisco 800 series and Cisco SOHO 70 series routers describe the enhancements provided in Cisco IOS Release 12.2(11)YU1. These release notes are updated as needed. Use these release notes with Cross-Platform Release Notes for Cisco IOS Release 12.2 T located on Cisco.com and the Documentation CD.
For a list of the software caveats that apply to Cisco IOS Release 12.2(11)YU1, see the "Caveats" section and Caveats for Cisco IOS Release 12.2 T. The caveats document is updated for every maintenance release and is located on Cisco.com 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(11)YU1 and includes the following sections:
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Memory Requirements
Table 1 provides the memory requirements for the Cisco IOS feature sets supported by Cisco IOS Release 12.2(11)YU1 on the Cisco 800 and the Cisco SOHO 70 series routers. All images are run from RAM.
Hardware Supported
Cisco IOS Release 12.2(11)YU1 supports the following Cisco routers:
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For detailed descriptions of new hardware features and information about 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 800 and the Cisco SOHO 70 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_fix/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: Fixed Configuration Access Routers: <platform_name>Determining the Software Version
To determine what version of Cisco IOS software is running on your Cisco router, log in to the router and enter the show version EXEC command. The following example shows command output from a Cisco 827 router running Cisco IOS Release 12.2(11)YU1:
Router> show versionCisco Internetwork Operating System SoftwareIOS (tm) C827 Software (C827-SY6-MZ), Version 12.2(11)YU1, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1)Synched to technology version 12.2(13.1u)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 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(11)YU1 supports the same feature sets as Releases 12.2(8)T, but Release 12.2(11)YU1 can include new features supported by the Cisco 800 and the Cisco SOHO 70 series routers.
Table 2 through Table 6 list the features and feature sets supported in Cisco IOS Release 12.2(11)YU1:
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The tables use the following conventions:
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Cisco Feature Navigator
Cisco Feature Navigator is a web-based tool that enables you to quickly determine which Cisco IOS software images support a specific set of features and which features are supported in a specific Cisco IOS image. You can search by feature or release. Under the release section, you can compare releases side by side to display both the features unique to each software release and the features in common.
To access Cisco Feature Navigator, you must have an account on Cisco.com. If you have forgotten or lost your account information, send a blank e-mail to cco-locksmith@cisco.com. An automatic check will verify that your e-mail address is registered with Cisco.com. If the check is successful, account details with a new random password will be e-mailed to you. Qualified users can establish an account on Cisco.com by following the directions found at this URL:
Cisco Feature Navigator is updated regularly when major Cisco IOS software releases and technology releases occur. For the most current information, go to the Cisco Feature Navigator home page at the following URL:
New and Changed Information
The following sections list the new software features supported by Cisco IOS Release 12.2(11)YU1 for the Cisco 800 series and the Cisco SOHO 70 series routers.
New Software Features in Release 12.2(11)YU
The following sections list the new software features supported by Cisco IOS Release 12.2(11)YU on the and the Cisco 800 Series Routers.
T.38 Fax Relay
The T.38 Fax Relay for Voice over IP (VoIP) feature provides standards-based fax relay protocol support on the Cisco 827-4V router. The T.38 standard defines the IP network protocol used by Internet-aware T.38 fax devices and T.38 IP fax gateways.
The only method that has been available on the 827-4v for relaying facsimile transmission over IP network is Cisco Fax Relay. Existing Cisco proprietary protocol uses Telogy DSPware and it is handled at the DSP level without any signaling taking place at the H.323 level. This is the default fax protocol if none is configured.
The Cisco proprietary Fax Relay solution is sometimes not ideal for enterprise and service provider customers who have mixed-vendor networks. Because the T.38 Fax Relay protocol is standards based, Cisco gateways and gatekeepers will now be able to interoperate with third-party T.38-enabled gateways and gatekeepers in a mixed-vendor networks that require real time Fax Relay capabilities are required.
The Cisco 827-4V router supports the H.323 Annex D standard for T.38 Fax relay in H.323 networks. A voice call is established first. When a fax tone is detected, fax switch-over takes place.
In addition to H.323 support, the T.38 fax relay feature also supports the Session Initiation Protocol (SIP).
The T.38 fax relay feature supports modem speeds of 2400 bps, 4800 bps, 7200 bps, 9600 bps, 12000 bps, and 14000 bps.
The T.38 fax gateways provide the following functions:
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Modem Passthrough
The modem passthrough over VoIP feature provides the transport of modem signals through a packet network by using pulse code modulation (PCM)-encoded packets. This feature is supported upto a maximum speed of 28800 bps (28.8 kbps).
The modem passthrough over VoIP feature performs the following functions:
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Caller ID for Spain and Austria
Caller ID (sometimes called CLID or ICLID for incoming call line identification) is an analog service offered by a central office (CO), which supplies calling party information to subscribers. Typically, the calling party number, and sometimes the name, appears on a station (also called extension) device such as a PC telephony software application screen or the display on a telephone. Type 1 Caller ID show the calling party information while the call is ringing, and Type 2 Caller ID shows calling number display while the recipient is on another call. Type 1 Caller ID is supported in this release.
The Caller ID feature supports the sending of calling party information from Foreign Exchange Station (FXS) loop-start and ground-start ports into a Caller-ID-equipped telephone device. The FXS port emulates the extension interface of a private-branch exchange (PBX) or the subscriber interface for a CO switch.
Spain and Austria both use the ETSI-FSK method for sending the caller number to the analog phone.
SIP Support for VoIP
Session Initiation Protocol (SIP) is the Internet Engineering Task Force's (IETF's) standard for multimedia conferencing over IP. SIP is an ASCII-based, application-layer control protocol (defined in RFC 2543) that can be used to establish, maintain, and terminate calls between two or more endpoints.
Like other VoIP protocols, SIP is designed to address the functions of signaling and session management within a packet telephony network. Signaling allows call information to be carried across network boundaries. Session management provides the ability to control the attributes of an end-to-end call.
SIP can:
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Conferences can consist of two or more users. Call can be established using multicast or multiple unicast sessions.
CBQoS MIB and DSCP
The Class-Based Quality of Service Management Information Base (CBQoS MIB) provides access to quality of service (QoS) configuration information and statistics. The CBQoS MIB allows service providers to monitor their QoS offerings. This MIB gives QoS configuration done in the router such as ClassMap, PolicyMap, Match Statements and Feature Actions configuration parameters. The MIB also contains counter objects which gives statistics information such as the number of packets traversed conforming to a policing feature. The MIB uses several indexes to identify QoS features and to distinguish among instances of those features. The MIB provides information about marking and policing done using IP precedence and Differentiated Services Code Point (DSCP).
ADSL LED Blinking When DSL Line Trains
ADSL LED Blinking provides information on the status of DSL line. ADSL Tx/Rx is used for this purpose. There are three distinct blinking patterns that indicate the various states of a DSL line when it is training.
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Shortly after the DSL line has started training, if the modem state changes to SHOWTIME, then the router is successfully trained with the DSLAM.
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New Software Features in Release 12.2 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 Cisco.com and the Documentation CD-ROM:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/index.htmThis URL is subject to change without notice. If it changes, point your web browser to Cisco.com, and click on the following path:
Service & Support: Technical Documents: Release 12.2 (from the Cisco IOS Software drop-down list)
Important Notes
The following sections contain important notes about Cisco IOS Release 12.2(11)YU1 that can apply to Cisco 800 series routers. (Also, see the "Caveats" section.)
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 the three severity levels.
Caveats in Cisco IOS Releases 12.2 and 12.2 T are also in Cisco IOS Release 12.2(11)YU1. For information on caveats in Cisco IOS Release 12.2, see Caveats for Cisco IOS Release 12.2. For information on caveats in Cisco IOS Release 12.2 T, see Caveats for Cisco IOS Release 12.2 T. These two documents list severity 1 and 2 caveats and are located on CCO and the Documentation CD-ROM.
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Resolved Caveats - Release 12.2(11)YU1
Cisco IOS Release 12.2(11)YU1 is a rebuild release for Cisco IOS Release 12.2(11)YU. This section describes unexpected behavior that is fixed in Release 12.2(11)YU1.
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(11)YU
This section describes unexpected behavior in Release 12.2(11)YU.
CSCdy28747
Microsoft MSN Messenger clients using the SIP protocol will not be able to communicate correctly with each other when NAT is enabled on the router. There is no workaround at present.
CSCin11192
Dial-on-demand routing (DDR) is normally triggered by traffic going in the direction opposite the direction for which it is enabled. When DDR is enabled on the Cisco 806 router for inbound traffic, one does not expect DDR to activate upon detecting incoming traffic. However, dial-on-demand router does activate, and the router is assigned an IP address.
CSCin08502
tftp fails with NAT overload when the router listens for tftp traffic on a non-standard port.
CSCdz01412
A Cisco 827-4V router configured for traffic shaping with constant bit rate (CBR) and variable bit rate-non real-time (VBR-nrt) permanent virtual circuits (PVCs) will have the traffic over the CBR PVC affecting throughput on the VBR-nrt PVC. The CBR PVC will also not be shaped and will be send at line rate.
Workaround
Increase the peak cell rate (PCR) and sustained cell rate (SCR) parameters of the VBR-nrt virtual circuit.
CSCin25256
EzVPN Tunnel fails to come up after configuring XAUTH. This requires Cisco IOS running on the remote EzVPN server to be upgraded to Cisco IOS release 12.2-13.T or later.
CSCdz59316
In the Cisco 82x router, PPP over ATM using aal5mux encapsulation on the dialer interface will not fast switch packets, instead packets will get process switched.
Workaround
Enable ip cef in the router.
CSCdz61900
Cisco 827-4V router reloads when debug vtsp all is enabled for T.38 fax relay with Cisco Fallback option and when a Cisco fax-relay call is recieved.
Workaround
Disable debug vtsp all.
Resolved Caveats - Release 12.2(11)YU
This section describes problems that were fixed in Release 12.2(11)YU.
CSCin14702
The HSRP interface track command sets the decrement value for an interface. It can also be used to modify the decrement value associated with an interface. At any given time, it is possible to have only one such command active for an interface.
However, the router seems to allow multiple track commands to be applied to an interface. Thus, more than one command can be active at any time. The commands are accumulated instead of being overwritten. When the interface goes down, the decrement values specified in all these commands are added up, and the resulting value is used as the decrement value.
Workaround
Use the no version of the track command to disable the previous setting for the interface, before issuing a new track command to change the decrement value. This will prevent accumulation of track commands.
CSCin11465
Easy VPN split tunneling extended access control list issue. This occurs when split tunneling is used in client mode. If the access list at the remote end is configured with two entries that have the same source IP address, the Cisco 806 client will try to install the same address twice and will clean up all the NAT configurations. In this case, one expects NAT to fail. However, on the Cisco 806 router, NAT continues to work correctly.
CSCin11017
In lab test scenarios, the Cisco 806 router client crashes after the idle timeout expires for DDR.
CSCdx72437
On a heavily loaded ATM VC, F5 OAM cells may be dropped by the Cisco 827 router causing the PVC to flap up and down. This flapping is not observed on the CPE but is visible on the aggregation device or on the remote end of the PVC.
CSCdz55586
In the Cisco 82x router, max-reserved-bandwidth command does not work, when configured on the ATM interface. This issue has been resolved in this release.
Related Documentation
The following sections describe the documentation available for the Cisco 800 series and SOHO 70 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 and the Cisco IOS release notes, which are available online on Cisco.com and the Documentation CD-ROM.
Use these release notes with the documents listed in the following sections:
Release-Specific Documents
The following documents are specific to Release 12.2 and apply to Release 12.2(11)YU1. They are located on Cisco.com and the Documentation CD-ROM (under the heading Service & Support):
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Technical Documents: Cisco IOS Software: Release 12.2: Release Notes: Cisco 800 Series Routers: Cisco 800 Series - Release Notes for Release 12.2(11)YU
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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 are available for the Cisco 800 series and SOHO 70 series routers on Cisco.com and the Documentation CD-ROM.
Cisco 800 Series and SOHO 70 Series Routers
Documentation specific to the SOHO 70 Series Routers and Cisco 800 Series Routers is available on Cisco.com and the Documentation CD at the following location:
http://www.cisco.com/univercd/cc/td/doc/product/access/acs_fix/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 Configuration Access Routers:<platform_name>
Software Configuration
The document Cisco Router Web Setup User Guide is available for the Cisco 800 series routers at the following location:
http://www.cisco.com/univercd/cc/td/doc/clckstrt/crws/ugcrws30.htm
This URL is subject to change without notice. If it changes, point your web browser to Cisco.com or the Documentation CD, and click the following path:
Technical Documents: Router Configuration Tools: Cisco Router Web Setup
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:
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:
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http://www.cisco.com/web/ordering/root/index.html
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http://www.cisco.com/go/subscription
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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 95134-9883We 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:
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If you want to obtain customized information and service, you can self-register on Cisco.com. To access Cisco.com, go to this URL:
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:
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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:
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.
This document is to be used in conjunction with the documents listed in the "Related Documentation" section.
Copyright © 2002, Cisco Systems, Inc.
All rights reserved.
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