Table Of Contents
Release Notes for the Cisco 2800 Series Integrated Services Routers for Cisco IOS Release 12.4(2)XA
Determining the Software Version
Upgrading to a New Software Release
New Hardware Features in Release 12.4(2)XA and 12.4(2)XA1
Single Port G.SHDSL WAN Interface Card (WIC-1SHDSL-V3)
New Software Features in Release 12.4(2)XA and 12.4(2)XA1
Wi-Fi 80211h and Dynamic Frequency Selection (DFS)
WLAN Controller Module (Airespace)
Changed Software Features in Release 12.4(2)XA and 12.4(2)XA1
Resolved Caveats - Release 12.4(2)XA2
Open Caveats - Release 12.4(2)XA2
Resolved Caveats - Release 12.4(2)XA1
Open Caveats - Release 12.4(2)XA1
Resolved Caveats - Release 12.4(2)XA
Open Caveats - Release 12.4(2)XA
Cisco IOS Software Documentation Set
Release 12.4 Documentation Set
Open Source License Acknowledgements
Release Notes for the Cisco 2800 Series Integrated Services Routers for Cisco IOS Release 12.4(2)XA
April 24, 2006Cisco IOS Release 12.4(2)XAOL-9461-01 Rev A3These release notes describe new features and significant software components for the Cisco 2800 series routers that support the Cisco IOS Release 12.4(2)XA releases. 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 12.4T located on Cisco.com and the Documentation CD.
For a list of the software caveats that apply to the Release 12.4(2)XA releases, see the "Caveats" section and Caveats for Cisco IOS Release 12.4(2)T. The online caveats document is updated for every maintenance release and is located on Cisco.com and the Documentation CD.
Contents
•Open Source License Acknowledgements
System Requirements
This section describes the system requirements for Release 12.4(2)XA and includes the following sections:
•Determining the Software Version
•Upgrading to a New Software Release
Memory Requirements
Table 1 describes the memory requirements for the Cisco IOS feature sets supported by Cisco IOS Release 12.4(2)XA on the Cisco 2800 series routers.
Hardware Supported
Cisco IOS Release 12.4(2)XA supports the following Cisco 2800 series routers:
•Cisco 2801
•Cisco 2811
•Cisco 2821
•Cisco 2851
For descriptions of existing hardware features and supported modules, see the hardware installation guides, configuration and command reference guides, and additional documents specific to the Cisco 2800 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_mod/2800/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: Modular Access Routers: Cisco 2800 Series Routers: <platform_name>
Determining the Software Version
To determine which version of Cisco IOS software is currently running on your Cisco 2800 series 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.
router> show version
Cisco Internetwork Operating System SoftwareIOS (tm) C2800 Software (C2800-Y7-MZ), Version 12.4(11)XJ, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1)Synched to technology version 12.4(2)TUpgrading to a New Software Release
For general information about upgrading to a new software release, refer to the 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 12.4(2)XA supports the same feature sets as Releases 12.4 and 12.4(2)T, but Release 12.4(2)XA includes new features supported by the Cisco 2800 series routers.
Caution The 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 will likely require an export license. Customer orders can be denied or subject to delay as a result of 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 feature and feature sets supported in Cisco IOS Release 12.4(2)XA.
The tables use the following conventions:
•In—The number in the `In' column indicates the Cisco IOS release in which the feature was introduced. For example, "12.4(11)XJ" indicates that the feature was introduced in 12.4(11)XJ. If a cell in this column is empty, the feature was included in a previous release or in the initial base release.
•Yes—The feature is supported in the software image.
•No—The feature is not supported in the software image.
Note These feature set tables contain only a selected list of features, which are cumulative for Release 12.4(2)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 Cross-Platform Release Notes for Cisco IOS Release 12.4(2)T and Release 12.4(2)T Cisco IOS documentation.
Table 2 Cisco IOS Release 12.4(2)XA Feature List for Cisco 2800 Routers
Feature In ImageYes
All. See Table 1 for image names.
Yes
All. See Table 1 for image names.
Yes
All. See Table 1 for image names.
Yes
All. See Table 1 for image names.
Yes
All. See Table 1 for image names.
New and Changed Information
This section contains the following information:
•New Hardware Features in Release 12.4(2)XA and 12.4(2)XA1
•New Software Features in Release 12.4(2)XA and 12.4(2)XA1
•Changed Software Features in Release 12.4(2)XA and 12.4(2)XA1
New Hardware Features in Release 12.4(2)XA and 12.4(2)XA1
Single Port G.SHDSL WAN Interface Card (WIC-1SHDSL-V3)
A single port multi line G.SHDSL WAN interface card (WIC), or WIC-1SHDSL-V3, provides Multirate Symmetrical High-Speed Digital Subscriber Line (G.SHDSL) feature support for Two-Wire Mode and Four-Wire Mode for SHDSL on the Cisco 1700 series, Cisco 1800 series, Cisco 26xxXM, Cisco 2691, Cisco 2800, Cisco 3700 series, and Cisco 3800 series modular access routers. The WIC-1SHDSL-V3 incorporates the latest firmware and the latest circuitry. For more information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_7/gt4wire.htm
New Software Features in Release 12.4(2)XA and 12.4(2)XA1
The following sections describe the new software features supported by the Cisco 2800 series routers for Release 12.4(2)XA.
ATM Oversubscription for DSL
The ATM Oversubscription for DSL feature lets you configure bandwidth oversubscription on Cisco xDSL interfaces up to a defined bandwidth. You can configure variable bit rate (VBR) and unspecified bit rate plus (UBR+) service classes for permanent virtual circuit (PVC) connections with a sum of sustainable cell rates (SCRs) greater than the line rate, which means you can configure an infinite oversubscription amount of bandwidth. Each PVC receives up to its configured SCR value of traffic, and PVCs with higher SCR values receive more bandwidth.
To enable ATM oversubscription for DSL, use the ATM oversubscribe factor command in ATM configuration mode. To disable ATM oversubscription for DSL, use the no form of this command.
atm oversubscribe factor factor
no atm oversubscribe factor factorTo configure unspecified bit rate (UBR) quality of service (QoS) and specify the output peak cell rate and output minimum guaranteed cell rate for an ATM PVC, PVC range, switched virtual circuit (SVC), virtual circuit (VC) class, or VC bundle member, use the ubr+ command in the appropriate command mode. To remove the UBR+ parameters, use the no form of this command.
ubr+ output-pcr output-mcr [input-pcr] [input-mcr]
no ubr+ output-pcr output-mcr [input-pcr] [input-mcr]Multiqueue Command
The multiqueue command enables a priority and a regular (nonpriority) queue for traffic streams. When the command is enabled and there are multiple classes of packet streams over the same PVC, packets coming from the streams that have priority values configured in a policy map are sent to the high priority queue. Packets from all other streams will be sent over the low priority queue. Multiqueue is intended for configuring DSL lines and permits configuring one data flow in a priority queue. If you have configured more than one flow in a priority queue, the latency for delay-sensitive traffic flow may not be guaranteed.
The multiqueue approach does not work well with applications such as MLPPP with interleave and Crypto. This is because MLPPP uses the same sequence numbering scheme for interleaved packets as the multiqueue approach. For example, if there are a voice and two data packets interleaved, the MLPPP sequence numbers for these packets could be 1 for the first data packet, 2 for the voice packet, and 3 for a second data packet. In the multiqueue approach, the voice packet with MLPPP sequence number 2 would go out before the data packet with MLPPP sequence number 1. This would result in out-of-order sequencing of packets as far as MLPPP is concerned, and result in unexpected behavior. The same problems apply to the Crypto application. The multiqueue approach is disabled by default so that when MLPPP and the Crypto applications are used with DSL the network will not be disrupted by upgrading to an image with multiqueue support.
To enable two queues to prioritize multiple classes of packet streams over the same PVC, use the multiqueue command in either the PVC- or VC-class configuration modes. To return to a single queue, use the no form of this command.
multiqueue
no multiqueueTransmit Power Control (TPC)
Transmit Power Control (TPC) for Cisco Aironet access points is used by Cisco Aironet access points to relay transmit power information to Cisco and Cisco-compatible wireless client devices. Client devices use the TPC information in conjunction with the access point's signal strength to calculate path loss and the transmit power necessary for the client to reach the Cisco Aironet access point. This feature extends client device battery life.
The following link provides instructions on controlling TPC:
http://www.cisco.com/univercd/cc/td/doc/product/wireless/airo1100/accsspts/i1234ja/i1234sc/s34rf.htm#wp1017196
Wi-Fi 80211h and Dynamic Frequency Selection (DFS)
Dynamic Frequency Selection (DFS) for Cisco Aironet access points is configured at the factory for use in Europe and Singapore to detect radar signals such as military and weather sources and switch channels on the access points.
The following link provides information to configure DFS:
http://www.cisco.com/univercd/cc/td/doc/product/wireless/airo1100/accsspts/i1234ja/i1234sc/s34rf.htm#wp1088457
WLAN Controller Module (Airespace)
The Cisco® Wireless LAN Controller Module delivers advanced wireless LAN functionality including RF management, mobility, and wireless IDS to Cisco 2800 and 3800 series Integrated Services Routers as well as Cisco 3700 platforms.
With Cisco's Wireless LAN controller module SMB and Enterprise branch offices can cost-effectively support their branch office requirements with converged networks that integrate data, voice, video & wireless. Integrated branch-office platforms reduce the number of managed devices in small offices, simplify remote management and offer flexible configuration options that reduce the total cost of operations and ownership.
Changed Software Features in Release 12.4(2)XA and 12.4(2)XA1
Table 3 lists the feature history for ATM Mode for Two-Wire or Four-Wire SHDSL.
.
Limitations and Restrictions
There are no known limitations or restrictions.
Caveats
Caveats describe unexpected behavior or defects in the 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 Release 12.4(2)T are also in Release 12.4(2)XA. For information on caveats in Cisco IOS Release 12.4(2)T, refer to the Caveats for Cisco IOS Release 12.4(2)T document. This document lists severity 1 and 2 caveats; the documents are located on Cisco.com 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 to Cisco.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.
This section contains the following caveat information:
•Resolved Caveats - Release 12.4(2)XA2
•Open Caveats - Release 12.4(2)XA2
•Resolved Caveats - Release 12.4(2)XA1
•Open Caveats - Release 12.4(2)XA1
•Resolved Caveats - Release 12.4(2)XA
•Open Caveats - Release 12.4(2)XA
Resolved Caveats - Release 12.4(2)XA2
•CSCsc36118: The default route is removed if the one of multiple PPPoE session down
Symptoms: The default route is removed if the one of multiple PPPoE session down.
Conditions: This problem occurs when you configure multiple PPPoE which connect to the same BRAS or same LNS if using L2TP and ppp ipcp route default is configured using Cisco IOS Software Release 12.4(2)T1.
Workaround: There is no workaround. However, you can still turn routing on. For example, configure the multiple default routes pointing to the dialer interface(s) as the next hop.
Open Caveats - Release 12.4(2)XA2
There are no known open caveats in this release.
Resolved Caveats - Release 12.4(2)XA1
•CSCei60304: show diag shows unknown daughter card for Cisco® Wireless LAN Controller Module
Symptoms: Entering show diag still refers to daughter card and calls it unknown.
Workaround: The daughter card reference has been removed.
•CSCej32413: Observing SIP TLS: PKI INIT failed during bootup
Symptoms: When the registrar server command is not configured, the Cisco IOS SIP GW sends back a "500 Internal Server" in response to an incoming REGISTER message.
Conditions: This happens only when the Cisco IOS GW is not configured to act as a SIP registrar server.
Workaround: To configure SIP registration functionality, configure registrar server under the voice service voip sip submode.
•CSCej65574: RU_SUSPENDED due to I82559-3-UNEXPECTEDINTR under heavy load
Symptoms: When Cisco Wireless LAN Controller Module (NM-AIR-WLC6-K9) generates heavy traffic toward the host router where the module is attached, the following error message might appear on the router console:
I82559FE-3-UNEXPECTEDINTR: NM slot 1: Unexpected I82559FE RU_SUSPENDED interruptOnce this message is seen, the host router no longer receives any traffic from the Cisco Wireless LAN Controller Module. The router must be reloaded to restore the service.
Workaround: There is no workaround.
•CSCsb76796: Seconds granularity support for X.25 encapsulation VC idle timeout
Symptoms: This caveat fix enhances the x25 idle and x25 map interface configuration mode commands to support seconds granularity for X.25 idle VC timeout for X.25 encapsulation VCs.
Workaround: Use the enhanced x25 idle command with seconds option:
Router(config-if)#x25 idle ?
<0-255> Minutes; 0 to never cleartinaturner(config-if)#x25 idle 0 ?
<1-59> Seconds; valid for encapsulation VCs only<cr>tinaturner(config-if)#x25 idle 0 10 ?
<cr>Use the enhanced x25 map command with seconds option:
Router(config-if)#x25 map ip 2.132.0.9 200910 idle ?<0-255> Idle time (minutes)tinaturner(config-if)#x25 map ip 2.132.0.9 200910 idle 0 ?
<1-59> Idle time (seconds)accept-reverse Accepting incoming reverse-charged callsbroadcast Send broadcasts to this hostcompress Use payload Compressioncug Specify a Closed User Group numbermethod Specify encapsulation methodno-incoming Do not use map for incoming Callsno-outgoing Do not use map for outgoing Callsnudata Specify user formatted network user IDnuid Specify Cisco formatted network user IDnvc Set number of virtual circuits for this mappacketsize Request data packet sizes for originated callsreverse Use reverse charging on originated callsroa Specify ROAthroughput Request bandwidth in X.25 networktransit-delay Specify transit delay (msec)windowsize Request window sizes for originated calls<cr>Router(config-if)#x25 map ip 2.132.0.9 200910 idle 0 10 ?
accept-reverse Accepting incoming reverse-charged callsbroadcast Send broadcasts to this hostcompress Use payload Compressioncug Specify a Closed User Group numbermethod Specify encapsulation methodno-incoming Do not use map for incoming Callsno-outgoing Do not use map for outgoing Callsnudata Specify user formatted network user IDnuid Specify Cisco formatted network user IDnvc Set number of virtual circuits for this mappacketsize Request data packet sizes for originated callsreverse Use reverse charging on originated callsroa Specify ROAthroughput Request bandwidth in X.25 networktransit-delay Specify transit delay (msec)windowsize Request window sizes for originated calls<cr>•CSCsb90481: Bad enque and traceback when ping with packets > 1445 bytes
Symptoms: The following error and traceback messages are shown on the console:
*Sep 19 15:04:17.027: %SYS-2-LINKED: Bad enqueue of 46ECBC6C in queue 4678EF4C-Process= "<interrupt level>", ipl= 4-Traceback= 0x414C292C 0x400AF600 0x4277FB60 0x4036E0EC 0x41A8CE98 0x400E0BD0 0x40067050 0x42C555B0 0x42C559CC 0x42B06718 0x430B4AA8 0x4312FEB4 0x4313882C 0x4313AF2C 0x43124AFC 0x43124FA4Conditions: This occurs when you ping with packets > 1445 bytes
Workaround: There is no workaround.
•CSCsb98499: Ping test failed under EDVT conditons
Symptoms: Ping may fail for WIC-1-SHDSL-V3 after entering a number of shut/no shut commands or after a number of reloads.
Conditions: When WIC-1-SHDSL-V3 trains some times it was observed that continous HEC errors are happening. Because of this, data is getting corrupted and ping fails.
Workaround: Retrain the line by entering the shut/no shut command.
•CSCsc25964: PPPoE dialer CEF VAI adjacency does not honor dialer ip mtu
Symptoms: A PPPoE client router does not honor the ip mtu command settings whey they are configured on the PPPoE dialer interface when the IP MTU is different from the interface MTU.
Fragmentation of IP packets larger than the configured IP MTU will not happen, which can create problems in a PPPoE environment.
Conditions: This symptom occurs whenever a v-access is cloned from the dialer interface and could be PPPoE, multilink or PPPoA.
Workaround: Configure the interface mtu command to the required value.
Open Caveats - Release 12.4(2)XA1
•CSCej65156: On DSLAM WIC-1-SHDSL-V3 is displayed as WIC-1-SHDSL-V2
Symptoms: WIC-1-SHDSL-V3 wic may be displyed as WIC-1-SHDSL-V2 at DSLAM.
Conditions: When WIC-1-SHDSL-V3 is connected to a DSLAM and trains, the EOC vendor model info from router will be "WIC-1-SHDSL-V2."
Workaround: There is no workaround.
Resolved Caveats - Release 12.4(2)XA
This section documents possible unexpected behavior by Cisco IOS Release 12.4(11)XJ and describes only severity 1 and 2 caveats and selected severity 3 caveats.
•CSCed27956: TCP checks should verify ack sequence number.
A vulnerability in the Transmission Control Protocol (TCP) specification (RFC793) has been discovered by an external researcher. The successful exploitation enables an adversary to reset any established TCP connection in a much shorter time than was previously discussed publicly. Depending on the application, the connection may get automatically re-established. In other cases, a user will have to repeat the action (for example, open a new Telnet or SSH session). Depending upon the attacked protocol, a successful attack may have additional consequences beyond terminated connection which must be considered. This attack vector is only applicable to the sessions which are terminating on a device (such as a router, switch, or computer) and not to the sessions that are only passing through the device (for example, transit traffic that is being routed by a router). In addition, this attack vector does not directly compromise data integrity or confidentiality.
All Cisco products which contain TCP stack are susceptible to this vulnerability.
This advisory is available at http://www.cisco.com/warp/public/707/cisco-sa-20040420-tcp-ios.shtml, and it describes this vulnerability as it applies to Cisco products that run Cisco IOS® software.
A companion advisory that describes this vulnerability for products that do not run Cisco IOS software is available at http://www.cisco.com/warp/public/707/cisco-sa-20040420-tcp-nonios.shtml.
Open Caveats - Release 12.4(2)XA
•CSCeh97137: newRoot & topologyChange Traps are not generated for Bridge Mib
Symptoms: The topology change trap is not generated while state from listening to learning & learning to forwarding is getting change on an interface. The new root trap is not generated while bridging is enabled & disabled on interfaces and while changing the mac address to make a new root.
Workaround: There is no workaround.
•CSCsc02741: Bootloader invalid entry creates instance where there is no option to correct the entry.
Symptoms: When in bootloader mode, if an invalid entry is entered, there is no available option to change the existing entry without rebooting the controller, and entering the correct entry again in bootloader mode.
This caveat includes the following condition when option 3 is used in the bootloader menu to update the corresponding values. The example below illustrates this condition:
3. Manually upgrade primary image4. Change active boot image5. Clear ConfigurationPlease enter your choice: 3Detecting hardware . . . .Use DHCP for ip configuration (Y/n)? nEnter switch IP address: 10.10.10.2Enter switch netmask: 255.255.255.0Enter switch gateway: 10.10.10.1Enter TFTP server IP address: 10.10.10.1You have entered:IP Address : 10.10.10.2Netmask : 255.255.255.0Gateway : 10.10.10.1Server Ip Addr : 10.10.10.1Is this correct(y/N)? yDo you want to update: RTOS(y/N)? nDo you want to update: Code(y/N)? yEnter Code filename for tftp download: AS_NMWLC6_3_2_37_0.aestftp://10.10.10.1/AS_NMWLC6_3_2_37_0.aes:TTTTTTtftp: last timeoutWorkaround: Reset the Cisco WLAN controller module from the router using the service-module wlan-controller slot/unit command, return to the bootloader prompt and enter new values.
Related Documentation
The following sections describe the documentation available for the Cisco 2800 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, 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 12.4 and apply to Cisco IOS Release 12.4(11)XJ. 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 12.4(2)T, click this path:
Technical Documents: Cisco IOS Software: Release 12.4: Release Notes: Cisco IOS Release 12.4(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 12.4 and Caveats for Cisco IOS Release 12.4(2)T documents, which contain caveats applicable to all platforms for all maintenance releases of Release 12.4, click this path:
Technical Documents: Cisco IOS Software: Release 12.4: Caveats
Note If you have an account with Cisco.com, you can also use the Bug Toolkit to find selected caveats of any severity. To reach the Bug Toolkit, log in to Cisco.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 the Cisco 2800 series routers are available on Cisco.com and the Documentation CD at the following location:
http://www.cisco.com/univercd/cc/td/doc/product/access/acs_mod/2800/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: Modular Access Routers: Series Integrated Services Routers: <platform_name>
Feature 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:
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 that are shipped with your order in electronic form on the Documentation CD-ROM—unless you specifically ordered 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.
On Cisco.com:
Products & Services: IOS Software: Cisco IOS Software Releases 12.4 Mainline: Technical Documentation: Master Indices
On the Documentation CD-ROM at:
Product Documentation: Cisco IOS Software: Cisco IOS Release 12.4: Configuration Guides and Command References
Release 12.4 Documentation Set
Table 4 describes the contents of Cisco IOS Release 12.4 software documentation set, which is available in both electronic and printed form.
Note You can find the most current Cisco IOS documentation on Cisco.com and the Documentation CD-ROM. These electronic documents may contain updates and modifications made after the hard-copy documents were printed.
Note Some aspects of the complete Cisco IOS Release 12.4 software documentation set might not apply to the Cisco 2800 router.
Service and Support
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:
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:
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.
Open Source License Acknowledgements
The following notices pertain to this software license.
OpenSSL/Open SSL Project
This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit (http://www.openssl.org/).
This product includes cryptographic software written by Eric Young (eay@cryptsoft.com).
This product includes software written by Tim Hudson (tjh@cryptsoft.com).
License Issues
The OpenSSL toolkit stays under a dual license, i.e. both the conditions of the OpenSSL License and the original SSLeay license apply to the toolkit. See below for the actual license texts. Actually both licenses are BSD-style Open Source licenses. In case of any license issues related to OpenSSL please contact openssl-core@openssl.org.
OpenSSL License:
Copyright © 1998-2007 The OpenSSL Project. All rights reserved.
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the copyright notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions, and the following disclaimer in the documentation and/or other materials provided with the distribution.
3. All advertising materials mentioning features or use of this software must display the following acknowledgment: "This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit (http://www.openssl.org/)".
4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to endorse or promote products derived from this software without prior written permission. For written permission, please contact openssl-core@openssl.org.
5. Products derived from this software may not be called "OpenSSL" nor may "OpenSSL" appear in their names without prior written permission of the OpenSSL Project.
6. Redistributions of any form whatsoever must retain the following acknowledgment:
"This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit (http://www.openssl.org/)".
THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT "AS IS"' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
This product includes cryptographic software written by Eric Young (eay@cryptsoft.com). This product includes software written by Tim Hudson (tjh@cryptsoft.com).
Original SSLeay License:
Copyright © 1995-1998 Eric Young (eay@cryptsoft.com). All rights reserved.
This package is an SSL implementation written by Eric Young (eay@cryptsoft.com).
The implementation was written so as to conform with Netscapes SSL.
This library is free for commercial and non-commercial use as long as the following conditions are adhered to. The following conditions apply to all code found in this distribution, be it the RC4, RSA, lhash, DES, etc., code; not just the SSL code. The SSL documentation included with this distribution is covered by the same copyright terms except that the holder is Tim Hudson (tjh@cryptsoft.com).
Copyright remains Eric Young's, and as such any Copyright notices in the code are not to be removed. If this package is used in a product, Eric Young should be given attribution as the author of the parts of the library used. This can be in the form of a textual message at program startup or in documentation (online or textual) provided with the package.
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the copyright notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
3. All advertising materials mentioning features or use of this software must display the following acknowledgement:
"This product includes cryptographic software written by Eric Young (eay@cryptsoft.com)".
The word `cryptographic' can be left out if the routines from the library being used are not cryptography-related.
4. If you include any Windows specific code (or a derivative thereof) from the apps directory (application code) you must include an acknowledgement: "This product includes software written by Tim Hudson (tjh@cryptsoft.com)".
THIS SOFTWARE IS PROVIDED BY ERIC YOUNG "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
The license and distribution terms for any publicly available version or derivative of this code cannot be changed. i.e. this code cannot simply be copied and put under another distribution license [including the GNU Public License].
This document is to be used in conjunction with the documents listed in the "Related Documentation" section.
CCSP, CCVP, the Cisco Square Bridge logo, Follow Me Browsing, and StackWise are trademarks of Cisco Systems, Inc.; Changing the Way We Work, Live, Play, and Learn, and iQuick Study are service marks of Cisco Systems, Inc.; and Access Registrar, Aironet, BPX, Catalyst, CCDA, CCDP, CCIE, CCIP, CCNA, CCNP, Cisco, the Cisco Certified Internetwork Expert logo, Cisco IOS, Cisco Press, Cisco Systems, Cisco Systems Capital, the Cisco Systems logo, Cisco Unity, Enterprise/Solver, EtherChannel, EtherFast, EtherSwitch, Fast Step, FormShare, GigaDrive, GigaStack, HomeLink, Internet Quotient, IOS, IP/TV, iQ Expertise, the iQ logo, iQ Net Readiness Scorecard, LightStream, Linksys, MeetingPlace, MGX, the Networkers logo, Networking Academy, Network Registrar, Packet, PIX, Post-Routing, Pre-Routing, ProConnect, RateMUX, ScriptShare, SlideCast, SMARTnet, The Fastest Way to Increase Your Internet Quotient, and TransPath are registered trademarks of Cisco Systems, Inc. and/or its affiliates in the United States and certain other countries.
All other trademarks mentioned in this document or Website are the property of their respective owners. The use of the word partner does not imply a partnership relationship between Cisco and any other company. (0601R)
Copyright © 2005-2006, Cisco Systems, Inc. All rights reserved.