Cisco 806 Router - Release Notes for Release 12.2(2)XK Feature Packs
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Table Of Contents
Release Notes for Cisco IOS Release 12.2 XK Software Feature Packs for the Cisco 806 Routers
Memory Defaults and Upgrade Options
Determining the Software Version
Upgrading to a New Software Release
New Hardware Features in Release 12.2(2)XK
New Software Features in Release 12.2(2)XK
IP Control Protocol Subnet Mask Delivery
IP Security Through Network Address Translation Support
NAT Default Inside Server Enhancement
New Software Features in Release 12.2 T
boot system flash imagename Command Not Supported
boot system tftp Command Requires an Image File Name
IPSec Unavailable When Fast-Switching Enabled
Configuring PPPoE on a Cisco 806 Router
Cisco IOS Software Documentation Set
Release 12.2 Documentation Set
Obtaining Technical Assistance
Contacting TAC by Using the Cisco TAC Website
Release Notes for Cisco IOS Release 12.2 XK Software Feature Packs for the Cisco 806 Routers
November 21, 2001
Cisco IOS Release 12.2(2)XK
OL-1958-01, Rev. B0
Note
This document may contain updates and modifications made after CD documents are created. You can find the most current version of this document on Cisco.com at:
Technical Documents: Cisco IOS Software: Cisco IOS Release 12.2: Release Notes: Feature Pack Release Notes
Contents
These release notes describe the following topics:
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Introduction
List of Terms
The following terms are used throughout this document:
Feature—Networking functionality that supports network technology and hardware. For example: Double Authentication, IP Multicast over Token Ring, Voice Over IP, PPP over ATM, and so forth.
Feature Set—A group of features. For example: IP, IP Plus, Enterprise Plus, IP IPSec 56, and so forth.
Image—Software code containing a Cisco IOS feature set. The image file nomenclature, such as c800-y6-mw, c1000-bnsy40-mz, and c2500-g-l, specifies a platform, feature set, and file compression method. For example, c4500-is56i-mz indicates:
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Feature Pack—A folder containing installation documentation and CDs that contain software images, applications, and electronic documentation. Feature packs provide software upgrades for many of the Cisco hardware platforms.
Feature Pack Contents
Your feature pack contains:
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System Requirements
This section describes the system requirements for Cisco IOS Release Release 12.2(2)XK:
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Feature Pack Table
Memory Defaults and Upgrade Options
Hardware Supported
Cisco IOS Release 12.2(2)XK supports Cisco 806 routers. For detailed descriptions of new hardware features, see New Hardware Features in Release 12.2(2)XK. The Cisco 806 router provides the following key hardware features:
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Table 3 summarizes Cisco 806 router ports.
Determining the Software Version
To determine the version of Cisco IOS software running on your Cisco 806 router, log in to the router and enter the show version EXEC command. The following sample displays command output from a Cisco 806 router running Release 12.2(2)XK:
Router> show versionCisco Internetwork Operating System SoftwareIOS (tm) 12.2 Software (c806-y6-mz), Version 12.2(2)XK, RELEASE SOFTWAREUpgrading 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 Table
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(2)XK supports the same feature sets as Releases 12.2 T, but Release 12.2(2)XK can include new features supported by the Cisco 806 Routers. Table 4 lists the feature sets supported by the Cisco 806 Routers.
Table 5 lists the features and feature sets supported by the Cisco 806 routers in Cisco IOS Release 12.2(2)XK. The tables use the following conventions:
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New and Changed Information
The following sections describes the new features supported by the Cisco 806 router for Release 12.2(2)XK and above.
New Hardware Features in Release 12.2(2)XK
Cisco 806 Router
The Cisco 806 router connects corporate telecommuters and small offices to corporate LANs and the Internet through Internet Service Providers (ISPs), using a broadband or Ethernet connection. The router provides bridging and multiprotocol routing between LAN and WAN ports.
New Software Features in Release 12.2(2)XK
The following sections list the new software features supported by Cisco IOS Release 12.2(2)XK on the Cisco 806 router.
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Committed Access Rate
Release 12.2(2)XK supports committed access rate (CAR) on Cisco 806 routers, to limit bandwidth transmission rates to traffic sources and destinations. The CAR feature also specifies policies for handling traffic that breaches the specified bandwidth allocations. To enable CAR, enter the command rate-limit in ATM-interface-configuration mode. Additional feature configuration instructions and examples are available in the Software Enhancements for the Cisco 800 Routers and SOHO Routers publication.
DHCP Server Import
Prior to Release 12.1(5), DHCP options on the IOS DHCP server could only be configured through the command-line interface (CLI). You can now configure the same DHCP options on multiple DHCP servers by configuring one remote master DHCP server located on the corporate backbone. Using this capability causes all local DHCP servers to have the same DHCP options as those on the remote DHCP server.
To enable this feature, the Cisco IOS DHCP server allows configuration information to be updated automatically by PPP. You can enable PPP to automatically configure the Domain Name Server (DNS), the Windows Information Name Server (WINS), or the NetBIOS Name Service (NBNS), and the server IP address information within a Cisco IOS DHCP server pool. For instructions on configuring DHCP server import and configuration examples, see the document Software Enhancements for the Cisco 800 Routers and SOHO Routers.
IP Control Protocol Subnet Mask Delivery
The IP Control Protocol (IPCP) feature assigns IP address pools to customer premises equipment (CPE) devices. These devices then assign IP addresses to the CPE and to a DHCP pool.
The IPCP feature provides the following functions:
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DHCP support is no longer on the client side because the CPE can now receive both the IP address and the subnet mask during the PPP setup negotiation. If the CPE uses the DHCP servers to allocate addresses for its own network, subnets can be assigned through the node route processor (NRP) on the network access server (NAS) and distributed to the remote CPE DHCP servers. For instructions on configuring IPCP subnet mask delivery and configuration examples, see the document Software Enhancements for the Cisco 800 Routers and SOHO Routers.
IP Security Through Network Address Translation Support
Cisco IOS network address translation (NAT) supports IP Security (IPSec) client software that does not use Transmission Control Protocol (TCP) wrapping or User Datagram Protocol (UDP) wrapping. On Cisco routers, this feature allows the simultaneous use of multiple, PC-based IPSec clients on which IPSec packet wrapping is disabled or is not supported. When PCs connected to the router create an IPSec tunnel, NAT on the router translates the private IP addresses in these packets to public IP addresses. This NAT feature also supports multiple Point-to-Point Tunnel Protocol (PPTP) sessions, which may be initiated by PCs with PPTP client software.
NAT Default Inside Server Enhancement
NAT syntax has been extended to allow you to specify an inside local address to receive packets that do not match criteria in other NAT statements in the configuration. Prior to Cisco IOS Release 12.2(2)XK, if a received packet did not match the criteria in any of the NAT statements in the configuration file, address translation did not occur, and the packet was dropped. The new syntax allows you to specify a default address to which all packets not matching other NAT criteria can be routed.
RADIUS Support
Cisco IOS release 12.2(2)XK supports the RADIUS feature for remote dial-in user authentication. For instructions on configuring RADIUS, refer to the Cisco 806 Router Software Configuration Guide, and to the Cisco IOS Security Configuration Guide.
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 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 and Restrictions
Cisco 806 Router Limitations
boot system flash imagename Command Not Supported
Although the boot system flash command is supported in Release 12.2(2)XK, the configuration command boot system flash imagename is not supported.
boot system tftp Command Requires an Image File Name
The configuration command boot system tftp is not supported in Release 12.2(2)XK.
IPSec Unavailable When Fast-Switching Enabled
For some interfaces, if fast-switching is enabled, IPSec does not function. For example, the dialer interface, used for PPPoE configuration, does not support fast-switching and IPSec simultaneously.
Important Notes
The following sections contain important notes about Cisco IOS Release 12.2(2)XK that can apply to Cisco 806 routers. (Also, see the "Caveats for Release 12.2(2)XK" section.)
Configuring PPPoE on a Cisco 806 Router
When specifying the method of authentication while configuring PPPoE and connecting to a Service Provider, the optional argument might be required to successfully authenticate the connection. For example:
interface Dialer0ppp authentication pap optionalor
interface Dialer0ppp authentication chap optionalCaveats for Release 12.2(2)XK
This section describes possibly unexpected behavior by Release 12.2(2)XK. Only severity 1 through 3 caveats are included.
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 these three severity levels.
Caveats in Cisco IOS Releases 12.2 and 12.2 T are also in Cisco IOS Release 12.2(2)XK. 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.
Note
CSCdt55603
The object cikeTunRemoteName is always an IP address regardless whether the peers have the isakmp key as a name peer or ipaddress peer. This caveat is a duplicate to caveat CSCds04437.
CSCdt93933
Cisco routers return a zero-length string when queried for the SNMP object isdnBearerPeerAddress, instead of the actual value. The command show call active voice bried displays the PeerAddress value.
CSCdt93965
Not able to create new rows in isdnSignalingTable. This caveat is a duplicate to caveat CSCdp57230.
CSCdu52623
When X.25 encapsulation is directly configured under the D channel on a Cisco 800 series router, at power up Layer 2 does not come up, even when isdn tei-negotiation powerup is set. To work around this problem, either enter the command no shut or a clear int bri 0 to bring up interface or use X.25 encapsulation under a dialer interface.
CSCdu55044
The CISCO-VOICE-DIAL-CONTROL-MIB object cvCallActiveCallerIDBlock returns incorrect values.
CSCdu55062
The object cvCallActiveSessionTarget returns incorrect values.
CSCdu55195
DS1 failure on repetitive patterns.
CSCdu55959
Cisco 800 series routers do not boot with TinyROM 1.4(1) or burned-in versions 1.2(0) or 1.0(3). One workaround is to upgrade to TinyROM burned-in version 1.2(2). Other TinyROM versions have not been tested.
CSCdu56183
The CISCO-VOICE-DIAL-CONTROL-MIB values cannot be set through SNMP for the object cvVoIPPeerCfgFaxBytes.
CSCdu56201
Setting the CISCO-VOICE-DIAL-CONTROL-MIB object cvVoIPPeerCfgDigitRelay results in an error.
CSCdu73718
The following IPSec MIB variables return incorrect values: cikeGlobalOutNotifys, cikeTunOutNotifys, cikeTunHistOutNotifys, cikeGlobalOutP2SaDelRequests, cikeTunOutP2SaDelRequests and cikeTunHistOutP2SaDelRequests.
CSCdu74709
The objects cikeGlobal[In/Out]P2Exchgs and cikeTun[In/Out]P2Exchgs return incorrect values.
CSCdu83902
The CISCO-IPSEC-MIB object cips3DesCapable returns incorrect values.
CSCdu89082
There is a very short delay while the command IP DHCP hostname becomes effective. If consecutive entries of the command ip address dhcp hostname are applied to an interface, the command show running config does not display the command ip add dhcp in a running configuration. The intention is to allow previous hostnames to be written over with later hostnames.
CSCdv00104
The CISCO-IPSEC-FLOW-MONITOR-MIB object cipSecTunHistTotalSas returns incorrect values. This caveat is a duplicate to caveat CSCds10702.
CSCdv01383
Packets are not dropped when partial encryption maps or empty dynamic access lists are applied during IPSec negotiation.
CSCdv01412
Voice loopback does not work.
CSCdv02381
The IPSEC-FLOWMONITOR-MIB objects cipSecTunLifeSize and cipSecTunLifeTime return incorrect values.
CSCdv02785
Some Caller-ID devices display the message "Number not available" with the calling number. For example, in Italy some Caller-ID devices display "NON disponibile", meaning "Number not available". This occurs when the name of a calling-party is not available. Therefore, this message means "No name", that is, the name of the calling side is not known. To associate a name with a given voice-port on the calling-side, configure the command station-id name station-name on the voice-port from which calls are made.
CSCdv03686
Caller-ID does not always display if calls on a voice port are received in quick succession and the "cptone" configured on the voice-port is Denmark(DK). To work around this problem, configure the voice-port with the command timing digit 70 whenever the cptone configured on a voice-port is Denmark.
CSCdv12488
Some packets are dropped due to cyclical redundancy check (CRC) errors.
CSCdv17664
The demandNbrName MIB object is not populated when initially queried. To work around this problem, use SNMP to set the variable.
CSCdv17679
The traps demandNbrCallDetails and demandNbrCNANotification are not sent when ISDN calls are made on the Voice NT or TE BRI interfaces.
CSCdv17691
Cisco routers unexpectedly reset when the object entLogical community is set to a longer string length than the range specified in the associated MIB file.
CSCdv20646
The objects entPhysicalVendorType and entPhysicalContainedIn return incorrect values.
CSCdv20689
The object entPhysicalTable returns empty strings as a result of some entries.
CSCdv22493
After a voice-capable Cisco router reloads, when a fractional T1 WIC is installed in Slot 0 and a BRI is installed in Slot 2, the FXS port in Slot 1 intermittently fails to come up. To work around this problem, reload the router again.
CSCdv23896
Under heavy traffic conditions using two parallel serial links, load balancing does not work correctly; the serial Slot and Port 0/0 drops noticeably more packets than the other serial interface.
CSCdv24610
Cisco routers unexpectedly reset if the command service-policy {input | output} policy-map-name is configured for a permanent virtual circuit (PVC) or virtual-template interface.
CSCdv27169
When voice calls are in progress between local voice ports (such as Port 1 calling Port 2), and the command ping executes, voice quality degrades on those internal calls. This occurs when the DSLAM profile is set to 192 kbps both upstream and downstream; and no PVC data rate limiting is set. To correctly limit the bandwidth allocated to the data PVC, rate-limit the PV when using UBR. Rate limiting is not set by default, therefore, if no rate limiting is set for the PVC, the traffic from the PVC take away all the available bandwidth, at the cost of all other rate-limited traffic.
CSCdv32198
On Cisco 800 series routers, AAL2 calls clear before a reanswer timeout. To work around this problem, configure the reanswer timer to 5 seconds instead of 15 seconds, or provision the DSL line to use fast path instead of interleaved path.
CSCdv35467
When configuring the mtu 1500 for an ATM interface in a Cisco router, after the router reloads, the PVC associated with the ATM interface remains in the INAC state.
CSCdv46730
The OAM F5 CC feature is not active after a router reload if OAM F5 loopback is configured and enabled. The workaround is to configure the OAM F5 CC feature only after a router has fully rebooted. If no OAM F5 loopback function is configured or enabled during a router reboot, the OAM F5 CC function activates as expected.
Related Documentation
The following sections describe the documentation available for the Cisco 806 router. 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:
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Release-Specific Documents
The following documents are specific to Release 12.2 and apply to Release 12.2(2)XK. 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(2)XK
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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
The following documents are available for the Cisco 806 router on Cisco.com and the Documentation CD-ROM:
Cisco 806 Router
The following documents are available for the Cisco 806 router:
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Software Configuration
The document Cisco Router Web Setup User Guide is available for the Cisco 800 series routers on Cisco.com and the Documentation CD-ROM at:
Technical Documents: Router Configuration Tools: Cisco Router Web Setup
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 from Cisco.com Documentation CD-ROM, 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 ReleasesFeature 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-ROM—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-ROM (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-ROM:
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-ROM
Cisco documentation and additional literature are available in a CD-ROM package, which ships with your product. The Documentation CD-ROM is updated monthly and might be more current than printed documentation. The CD-ROM 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