Cisco 800 Series - Cisco IOS Release 12.2(11)YV2
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Table Of Contents
Release Notes for the Cisco 800 and SOHO 90 Series Routers for Cisco IOS Release 12.2(11)YV
Determining the Software Version
Upgrading to a New Software Release
New Hardware Features in Release 12.2(11)YV
New Software Features in Release 12.2(11)YV
4-Port 10/Base 100-T Ethernet LAN Switch Interface
ISDN BRI S/T Interface as Backup WAN Interface
Flash File System Squeeze Utility
New Software Features in Release 12.2(11)T
Resolved Caveats - Release 12.2(11)YV2
Resolved Caveats - Release 12.2(11)YV1
Open Caveats - Release 12.2(11)YV
Obtaining Technical Assistance
Release Notes for the Cisco 800 and SOHO 90 Series Routers for Cisco IOS Release 12.2(11)YV
July 29, 2003
These release notes describe new features and significant software components for the Cisco 836 router and the Cisco SOHO 96 router that support Cisco IOS Release 12.2 T, up to and including Release 12.2(11)YV2. 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 Cisco.com and the Documentation CD.
For a list of the software caveats that apply to Release 12.2(11)YV2, 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.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)YV2 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(11)YV2 on the Cisco 836 and SOHO 96 routers.
Hardware Supported
Cisco IOS Release 12.2(11)YV2 supports the following routers:
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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 836 and SOHO 96 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.htmThis URL is subject to change without notice. If it changes, point your web browser to Cisco.com, and click the following path:
Cisco Product Documentation: Access Servers and Access Routers: Fixed Access: Cisco 800 Series Routers: <platform_name>Determining the Software Version
To determine which version of Cisco IOS software is currently running on your Cisco 836 or SOHO 96 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) C836 Software (C836-K9O3SY6-M), Version 12.2(11)YV2, 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)YV2 supports the same feature sets as Releases 12.2 and 12.2(8)T, but Release 12.2(11)YV2 includes new features supported by the Cisco 836 and SOHO 96 routers.
Caution
Table 2 lists the features and feature sets that are supported in Cisco IOS Release 12.2(11)YV2.
The table uses the following conventions:
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Note
Table 2 Feature List by Feature Set for Cisco 836, and SOHO 96 Routers
3DES
FW/3DES/
Backup Dial10/100 switch, 4-port, unmanaged
12.2(11)YV
Yes
Yes
Yes
Yes
Switch queuing mechanism to enable QoS, fair queuing with priority queues.
12.2(11)YV
Yes
No
Yes
Yes
Switch PHY to allow auto MDI- MDIX
12.2(11)YV
Yes
Yes
Yes
Yes
Support to boot from any Cisco IOS image in Flash
12.2(11)YV
Yes
Yes
Yes
Yes
Hardware-assisted encryption for 3DES
12.2(11)YV
No
No
Yes
Yes
Integrated Services Digital Network (ISDN) Basic Rate Interface (BRI) S/T1
12.2(11)YV
Yes
Yes
Yes
Yes
IP routing, integrated routing and bridging (IRB)
12.2(11)YV
Yes
Yes
Yes
Yes
Enhanced Interior Gateway Routing Protocol (EIGRP)
12.2(11)YV
No
No
Yes
Yes
Network Address Translation (NAT), Port Address Translation (PAT) with H.323 support
12.2(11)YV
Yes
Yes
Yes
Yes
NAT IPSEC pass-through, single- or multi-user
12.2(11)YV
Yes
Yes
Yes
Yes
Transport Control Protocol (TCP) maximum segment size (MSS) intercept and adjustment
12.2(11)YV
Yes
Yes
Yes
Yes
Internet Protocol Control Protocol (IPCP) negotiated address, netmask, Domain Name System (DNS) and Windows Internet Naming Service (WINS)
12.2(11)YV
Yes
Yes
Yes
Yes
IPCP subnet delivery (connecting to Dynamic Host Configuration Protocol [DHCP] and LAN configuration)
12.2(11)YV
Yes
Yes
Yes
Yes
Routing Information Protocol (RIP) version 2
12.2(11)YV
Yes
Yes
Yes
Yes
DHCP client, relay, and server
12.2(11)YV
Yes
Yes
Yes
Yes
Policy-based routing
12.2(11)YV
Yes
Yes
Yes
Yes
Generic Routing Encapsulation (GRE)
12.2(11)YV
Yes
Yes
Yes
Yes
Low Latency Queueing (LLQ)
12.2(11)YV
Yes
No
Yes
Yes
Weighted Random Early Detection (WRED)
12.2(11)YV
No
No
Yes
Yes
Class-based traffic shaping (CBTS)
12.2(11)YV
No
No
Yes
Yes
Committed access rate (CAR)
12.2(11)YV
No
No
Yes
Yes
Full syslog support
12.2(11)YV
No
No
Yes
Yes
Lock and key
12.2(11)YV
No
No
Yes
Yes
Authentication, Authorization, and Accounting (AAA) with Radius and Terminal Access Controller Access Control System Plus (TACACS+)
12.2(11)YV
No
No
Yes
Yes
AAA with TACACS+
12.2(11)YV
No
Yes
No
No
Easy Virtual Private Network (VPN) Phase 1
12.2(11)YV
Yes
No
Yes
Yes
Easy VPN Phase 2
12.2(11)YV
Yes
No
Yes
Yes
Secure shell (SSH) for secure remote management (no port mapping support required)
12.2(11)YV
Yes
No
Yes
Yes
Firewall features phase 1 and 2 excluding intrusion detection system (IDS)
12.2(11)YV
Yes
Yes
Yes
Yes
Firewall features phase 1
12.2(11)YV
No
Yes
No
No
Payload PPP compression
12.2(11)YV
Yes
Yes
Yes
Yes
Dial backup over ISDN BRI S/T port
12.2(11)YV
No
No
No
Yes
Hot Standby Routing Protocol (HSRP)
12.2(11)YV
No
No
Yes
Yes
Remote Management ISDN BRI S/T Port
12.2(11)YV
Yes
Yes
Yes
Yes
Numbered and unnumbered interfaces
12.2(11)YV
Yes
Yes
Yes
Yes
Ethernet support
12.2(11)YV
Yes
Yes
Yes
Yes
Static routes
12.2(11)YV
Yes
Yes
Yes
Yes
IP multicast proxy
12.2(11)YV
Yes
Yes
Yes
Yes
PIM sparse mode
12.2(11)YV
No
No
Yes
Yes
Remote upgrade ability of IOS
12.2(11)YV
Yes
Yes
Yes
Yes
Service Agent (SA) agent support
12.2(11)YV
Yes
Yes
Yes
Yes
Named access lists
12.2(11)YV
Yes
Yes
Yes
Yes
Telnet client and server
12.2(11)YV
Yes
Yes
Yes
Yes
Ability to manage Cisco IOS and Cisco Router Web Setup (CRWS) upgrade separately
12.2(11)YV
Yes
Yes
Yes
Yes
Yes
Yes
Chassis MIB
12.2(11)YV
Yes
Yes
Yes
Yes
SNMP MIB 2
12.2(11)YV
Yes
Yes
Yes
Yes
Cisco IOS protocols MIB
12.2(11)YV
Yes
Yes
Yes
Yes
Interface MIBs
12.2(11)YV
Yes
Yes
Yes
Yes
Entity MIB, Syslog MIB, Queue MIB, Mempool MIB, Image MIB
12.2(11)YV
Yes
Yes
Yes
Yes
Support for all existing MIBs for ADSL models
12.2(11)YV
Yes
Yes
Yes
Yes
ISDN MIB
12.2(11)YV
Yes
Yes
Yes
Yes
Call History MIB
12.2(11)YV
Yes
Yes
Yes
Yes
CRWS support
12.2(11)YV
Yes
Yes
Yes
Yes
Config Express
12.2(11)YV
Yes
Yes
Yes
Yes
CiscoView, Cisco Resource Manager Essentials
12.2(11)YV
Yes
Yes
Yes
Yes
IE2100 support
12.2(11)YV
Yes
Yes
Yes
Yes
1 This feature is available only in the Cisco 836 router running Cisco IOS backup image (c836-k9o3s8y6-mz).
New and Changed Information
The following sections list the new hardware and software features supported by the Cisco 836 and SOHO 96 routers for Release 12.2(11)YV2.
New Hardware Features in Release 12.2(11)YV
The Cisco 836 and SOHO 96 routers have the following additional features. These features are not available on existing broadband routers.
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New Software Features in Release 12.2(11)YV
The following sections describe the new software features supported by the Cisco 836 and SOHO 96 routers for Release 12.2(11)YV2.
4-Port 10/Base 100-T Ethernet LAN Switch Interface
The 4-port 10/Base 100-T Ethernet LAN switch interface is implemented using the MPC857T FEC and the Marvell 88E6052 switch chip. The 10/100 Mbps switching among the 4 ports is supported by the Marvell 88E6052 switch chip. The Cisco IOS Ethernet LAN interface is implemented as a 10-Mbps Ethernet interface. The MPC857T is connected to the 88E6052 port 5 via the MII. The MII signal lines reside in the PCMCIA port instead of the dedicated pins of I/O port D.
ADSL WAN Interface
The asymmetric digital subscriber line (ADSL) provides high-speed digital data transfer between a single customer premises equipment (CPE) subscriber and the central office.
The ADSL WAN interface supports both annexb-ur2mode and ETSI mode on the Alcatel 7300, Alcatel A1000, Lucent, ECI, and Siemens Digital Subscriber Line Access Multiplexers (DSLAMs). It also supports Asynchronous Transfer Mode (ATM) Adaptation Layer 5 (AAL5) and various classes of quality of service (QoS) for both voice and data service.
Hardware Encryption Support
The hardware encryption is implemented using the Hifn7902 security processor with a 64Kx16 SRAM chip to enhance the encryption speed.
Flash Memory Access
The Cisco 836 and SOHO 96 routers each provide 12 MB onboard flash memory. Each router has an expansion slot to allow an additional 4-, 8-, or 16-MB of Flash memory module. The Flash memory is used to store the ROMMON, the compressed Cisco IOS image integrated with the decompressor, the Cisco Router Web Support (CRWS) data and the current router configuration data.
SDRAM Memory Access
The Cisco 836 and SOHO 96 routers each provide 32 MB on-board SDRAM memory. Each router has an expansion slot to allow an additional 16- or 32-MB of SDRAM memory module. The SDRAM memory is used to store the decompressed Cisco IOS image and to provide memory for various buffer pools, data, heap, and stacks for running the Cisco IOS image.
ISDN BRI S/T Interface as Backup WAN Interface
The Cisco 836 router allow ISDN BRI S/T WAN interface to be configured as dial-on-demand routing (DDR) backup for the ATM over ADSL WAN interface. This means the ISDN BRI S/T interface configured as a dialer interface with the required parameters for dialing remote site using the selected protocol such as PPP and the related authentication such as Password Authentication Protocol (PAP) or Challenge Handshake Authentication Protocol (CHAP). The configured backup ISDN BRI S/T interface is in standby mode as long as the ADSL interface is up and running. If the ADSL interface goes down, and there are packets that need to be sent to the remote site, the ISDN BRI S/T interface will be brought up and the connection made to the remote site. Traffic will continue to flow between the router and the remote site using the ISDN BRI S/T interface as long as the ADSL interface remains down. When the ADSL interface is brought up again, the ISDN BRI S/T interface returns to previous standby mode.
This feature is available only in the Cisco 836 router.
Form more information on configuring backup dial feature, refer to the Cisco 836 router software guide.
Flash File System Squeeze Utility
When a Flash memory device is full, the files must be rearranged so that 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.
New Software Features in Release 12.2(11)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:
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 Cisco.com, 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)
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(11)YV2. 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 Cisco.com and the Documentation CD.
Note
Resolved Caveats - Release 12.2(11)YV2
Cisco IOS Release 12.2(11)YV2 is a rebuild release for Cisco IOS Release 12.2(11)YV. This section describes unexpected behavior that is fixed in Release 12.2(11)YV2.
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 - Release 12.2(11)YV1
This section describes unexpected behavior that is fixed in Release 12.2(11)YV1.
CSCea19412
This is a fix for short loop problem.
Workaround
Transmit the board serial number to DSLAM through the Embedded Operations Channel (EOC). Firmware 4.10.200 is also required.
Open Caveats - Release 12.2(11)YV
The following sections lists the open caveats for the Cisco IOS release 12.2(11)YV.
CSCin30095
The vpdn enable command is not required to configure Point-to-Point Protocol over Ethernet (PPPoE) client on the router.
Workaround
Execute no vpdn enable, issue write mem command, and then reload the router.
CSCdz56458
clear atm command is supported, however, help is not available.
CSCdz63458
ip urlfilter alert will be automatically configured when router is booted.
CSCdz41733
Configuring aaa new-model automatically adds radius-server authorization permit missing Service-Type configuration.
Workaround
Enable radius-server deny authorization missing Service-Type or no radius-server deny authorization missing Service-Type command.
CSCdz78592
The Cisco 836 router with firewall 4.101 does not meet the DT UR-2 Loop 7 requirements. Loop 7 requirements mandate that 6.016 Mbps downstream and 576 Kbps must be achieved at a minimum loop length of 1600 m.
CSCdz78631
The upstream noise margin displayed by sh dsl int atm0 with ECI DSLAM with line card A indicates erroneous value due to an interoperability issue with the DSLAM.
CSCdz73950
write erase does not erase a non-default IO memory value from the configuration.
Workaround
Configure the IO memory value to the default value and save the configuration.
CSCdz80707
Traceback is generated when the router's logging console is enabled by using radius-server host ip address of radius server auth-port 1645 acct-port 1646.
Workaround
Disable logging the console to eliminate the traceback message.
CSCdy79645
When the LAN interface of Cisco 836 is connected to another Cisco router, and cdp is enabled on both the routers, a cdp duplex mismatch is displayed.
Workaround
Enable no cdp advertise-v2 and no cdp run commands.
CSCin08502
tftp fails with NAT overload when the router listens for tftp traffic on a non-standard port.
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.
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.
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 received.
Related Documentation
The following sections describe the documentation available for the Cisco 836 and SOHO 96 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
The following documents are specific to Release 12.2 and apply to Release 12.2(11)YV2. 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 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
Note
Platform-Specific Documents
Hardware installation guides, configuration and command reference guides, and additional documents specific to Cisco 836 and SOHO 96 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 Cisco.com, and click the following path:
Cisco Product Documentation: Access Servers and Access Routers: Fixed Access Routers: Cisco 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:
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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