Table Of Contents
Release Notes for Cisco IAD2420 Series for Cisco IOS Release 12.1 XR
Determining the Software Version
Upgrading to a New Software Release
New Hardware and Software Features in Release 12.1(5)XR2
New Hardware and Software Features in Release 12.1(5)XR1
New Hardware Features in Release 12.1(5)XR
New Software Features in Release 12.1(5)XR
Caveat CSCdr91706 and IOS HTTP Vulnerability
Open Caveats—Cisco IOS Release 12.1(5)XR2
Resolved Caveats—Cisco IOS Release 12.1(5)XR2
Open and Resolved Caveats—Cisco IOS Release 12.1(5)XR1
Open Caveats for Release 12.1(5)XR
Resolved Caveats for Release 12.1(5)XR
Cisco IOS Software Documentation Set
Release 12.1 Documentation Set
Obtaining Technical Assistance
Contacting TAC by Using the Cisco TAC Website
Release Notes for Cisco IAD2420 Series for Cisco IOS Release 12.1 XR
June 13, 2002
Cisco IOS Release 12.1(5) XR2
78-12264-01 Rev. D1
Note
The last release of Cisco IOS Release 12.1 XR is Cisco IOS Release 12.1(5) XR2. The migration path for customers who need bug fixes for Cisco IOS Release 12.1(5) XR2 features is Cisco IOS Release 12.2(8)T. Cisco IOS Release 12.2(8)T release has the complete feature content of Cisco IOS Release 12.1(5) XR2 and will eventually reach general deployment (GD).
These release notes for the Cisco IAD2420 series describe the enhancements provided in Cisco IOS Release 12.1(5)XR2. These release notes are updated as needed.
For a list of the software caveats that apply to Release 12.1(5)XR2, see the "Caveats" section and Caveats for Cisco IOS Release 12.1 T that accompanies these release notes. This caveats document is updated for every maintenance release and is also located on Cisco.com and the Documentation CD-ROM.
Use these release notes with Cross-Platform Release Notes for Cisco IOS Release 12.1 located on Cisco.com and the Documentation CD-ROM.
Contents
These release notes describe the following topics:
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Introduction
The Cisco IAD2400 Series Integrated Access Devices are fixed configuration multi-service customer premise equipment (CPE) platforms, targeted at emerging competitive local exchange carriers (CLECs), incumbent local exchange carriers (ILECs), and inter-exchange carriers (IXCs). The IAD2420 series enables service providers to cost effectively deploy next generation managed services for the growing needs of small and medium businesses (SMB) over a single high speed access link. The IAD2400 series products support both voice over IP (VoIP) and voice over ATM (VoAAL2), with high-density analog or digital voice interfaces.
The IAD2420 is an IP ONLY platform. It does not support other local area network (LAN) protocols like IPX, Appletalk, or SNA. Additionally, the IAD2400 series only supports simple gateway control protocol (SGCP) and media gateway control protocol 0.1 (MGCP). It does not support H.323 or session initiation protocol (SIP) for voice signaling.
The IAD series is a fixed configuration platform and comes with the required flash memory and random access memory (RAM) for the operation of the platform. Customers do not need to acquire memory separately. Table 1 lists Cisco IAD2400 series product numbers with the corresponding WAN and telephony interfaces.
System Requirements
This section describes the system requirements for Release 12.1(5)XR2:
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Memory Recommendations
The IAD2420 is a fixed configuration platform and comes with the required flash memory and random access memory (RAM) for the operation of the platform. End users do not need to acquire memory separately.
Hardware Supported
Table 2 lists the supported interfaces for the Cisco IAD2420 series for Cisco IOS Release 12.1(5)XR2.
Each Cisco IAD2420 series router is preconfigured for one wide-area network (WAN) port. The WAN port is either a T1 port or an asymmetric digital subscriber line (ADSL) port. Each Cisco IAD2420 is also preconfigured with either 8 or 16 foreign exchange station (FXS) analog voice ports or one T1 digital voice port for connection to a private branch exchange (PBX).
Determining the Software Version
To determine the version of Cisco IOS software running on a Cisco IAD2420, log in to the router and enter the show version EXEC command:
router>show versionCisco Internetwork Operating System SoftwareIOS (tm) IAD2420 Software (C2420-A2I8SV5-MZ), Version 112.1(5)XR2, RELEASE SOFTWAREUpgrading to a New Software Release
For general information about upgrading to a new software release, see the product bulletin Cisco IOS Upgrade Ordering Instructions on Cisco.com under:
Service & Support: Software Center: Cisco IOS Software: Product Bulletins: Software
Under General System Software Bulletins, click Cisco IOS Upgrade Ordering Instructions, No. 957
Feature Set Tables
Cisco IOS software is packaged in feature sets consisting of software images—depending on the platform. Table 3 lists the Cisco IOS Release12.1(5)XR2 feature set image for the Cisco IAD2420 series platforms.
Table 3 Feature Sets Supported by the Cisco IAD2420 Series
Feature SetIP/ATM/VOIP/VOATM
c2420-a2i8sv5-mz
All Cisco IAD2420 series platforms
Caution
Table 4 lists the features and feature set supported by the Cisco IAD2420 series in Cisco IOS Release 12.1(5)XR2 and use the following conventions:
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Note
Table 4 Feature List by Feature Set for the Cisco IAD2420 Series
IP/ATM/VOIP/VOATM
IP Routing (RIP, OSPF, BGP, Static)
Yes
Network Address Translation (NAT)
Yes
Robust Quality of Service (QoS) Features
Yes
Application Recognition and Routing Firewall
Yes
Voice over IP (VoIP) including MGCP and SGCP1
Yes
Voice over ATM Adaption Layer 2 (VoAAL2)
Yes
1 There is NO support for SIP or H.323
New and Changed Information
The following is a list of the new hardware and software features supported by the Cisco IAD2420 for Cisco IOS 12.1(5)XR2.
New Hardware and Software Features in Release 12.1(5)XR2
No new hardware and software features are supported in Cisco IOS Release 12.1(5)XR2.
New Hardware and Software Features in Release 12.1(5)XR1
No new hardware and software features are supported in Cisco IOS Release 12.1(5)XR1.
New Hardware Features in Release 12.1(5)XR
The Cisco IAD2423 is now supported. The IAD2423 provides an ADSL WAN interface. This interface provides both voice and data traffic between the customer premises equipment (CPE) and the central office (CO) over the local loop.
New Software Features in Release 12.1(5)XR
The IAD2420 series now supports connectivity to a WAN or service provider network via ADSL in IOS Release 12.1(5)XR1.
Note
Important Notes
Caveat CSCdr91706 and IOS HTTP Vulnerability
A defect in multiple releases of Cisco IOS software will cause a Cisco router or switch to halt and reload if the IOS HTTP service is enabled, browsing to http://router-ip/anytext?/ is attempted, and the enable password is supplied when requested. This defect can be exploited to produce a denial of service (DoS) attack.
The vulnerability, identified as Cisco bug ID CSCdr91706, affects virtually all mainstream Cisco routers and switches running Cisco IOS software releases 12.0 through 12.1, inclusive. This is not the same defect as CSCdr36952.
The vulnerability has been corrected and Cisco is making fixed releases available for free to replace all affected IOS releases. Customers are urged to upgrade to releases that are not vulnerable to this defect, as shown in detail below.
This vulnerability can only be exploited if the enable password is known or not set.
You are strongly encouraged to read the complete advisory, which is available at
http://www.cisco.com/warp/public/707/ioshttpserverquery-pub.shtml.
Product Number Change
Beginning with Cisco IOS Release 12.0(7)XK, Cisco changed the product numbers used to order a specific Cisco IOS software image. In short, Cisco will remove the periods separating the release train, maintenance release, and build number. The following table provides some examples.
Deprecated MIBs
Older Cisco Management Information Bases (MIBs) will be replaced in a future release. OLD-CISCO-* MIBS are currently migrated into more scalable MIBs—without affecting existing Cisco IOS products or NMS applications. You can update from deprecated MIBs to the replacement MIBs as shown in Table 5.
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. Severity 3 caveats are moderate caveats, and only select severity 3 caveats are included in the caveats document.
For information on caveats in Cisco IOS Release 12.1(5), see Caveats for Cisco IOS Release 12.1 that accompanies these release notes. This document lists severity 1 and 2 caveats and select severity 3 documents for Cisco IOS Release 12.1.
Note
http://www.cisco.com/support/bugtools
Open Caveats—Cisco IOS Release 12.1(5)XR2
There are no open caveats specific to Cisco IOS Release 12.1(5)XR2 that require documentation in the release notes.
Resolved Caveats—Cisco IOS Release 12.1(5)XR2
All the caveats listed in this section are resolved in Cisco IOS Release 12.1(5)XR2. This section describes only severity 1 and 2 caveats and select severity 3 caveats.
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An error can occur with management protocol processing. Please use the following URL for further information:
http://www.cisco.com/cgi-bin/bugtool/onebug.pl?bugid=CSCdw65903
Open and Resolved Caveats—Cisco IOS Release 12.1(5)XR1
There are no open and resolved caveats specific to Cisco IOS Release 12.1(5)XR1 that require documentation in the release notes.
Open Caveats for Release 12.1(5)XR
The caveats listed in this section are open in Cisco IOS Release 12.1(5)XR.
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In a configuration with two Cisco IAD2420's with digital voice ports connected via IP, Channel Associated Signaling (CAS)-to-CAS calls fail in a "race condition" in which the terminating gateway receives an answer from the switch before it has forwarded all digits to the switch. This causes the receiving gateway to generate an error message, stating that it is unable to process the event error. There is no workaround.
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Issuing the Helper CLI ? command (that is, the question mark is the command) after an ip subcommand under the global configuration mode, the "% Ambiguous command:" is returned. For example:
uut2(config)#ip audit ? returns the % Ambiguous command: ip audit
The commands themselves work properly as long as the correct syntax is invoked. There is no workaround.
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When making 24 fax-session calls between two Cisco IAD2420's with digital voice ports connected over T1 in a configuration that includes VoIP, MGCP, E&M immediate, Named Signal Event (NSE), and codec G.726 32K, many fax-session calls might fail due to the following error code "400 Endpts in transient state." The failure rate is about 33% (112 failures out of 336 calls). There is no workaround.
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Under heavy traffic, a call might cause a port to move into a transient state. Even after sending a "delete connection" (DLCX) message, the port remains in a transient state. There is no workaround.
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Under heavy traffic for a long period of time (about six hours), analog calls will cause the following error message (the date and time will be different):
Nov 10 12:02:20.874: rtpspi_offhook_event: cannot find control block based on callID -1There is no workaround.
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When the transparent CCS frame-forwarding mode is enabled on controller "T1 1", after configuring the CLI commands ccs encap atm and ccs connect ATM0 <pvc> on interface "Serial 1:23", these two commands also show up on interface "ATM0." These commands can not be removed by issuing the CLI command no ccs encap atm or no ccs connect ATM0, but when they are unconfigured on interface "Serial 1:23", they also disappear on interface "ATM0." There is no workaround.
Resolved Caveats for Release 12.1(5)XR
All the caveats listed in this section are resolved in Cisco IOS Release 12.1(5)XR. This section describes only severity 1 and 2 caveats and select severity 3 caveats.
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Connection setup improvements.
This caveat has been resolved in Cisco IOS Release 12.1(5)XR1.
Related Documentation
The following sections describe the documentation available for the Cisco IAD2420 series. 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-ROM.
Use these release notes with these documents:
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Release-Specific Documents
The following documents are specific to or support Cisco IOS Release 12.1(5) and 12.1(5)T and are located on Cisco.com and the Documentation CD-ROM:
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On Cisco.com, beginning under the Service & Support heading:
Technical Documents: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 12.1: Release Notes: Cross-Platform Release Notes for Cisco IOS Release 12.1
On the Documentation CD-ROM at:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.1: Release Notes: Cross-Platform Release Notes for Cisco IOS Release 12.1
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To reach these documents, refer to the Service & Support section at this path on Cisco.com:
Technical Documents
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On Cisco.com, beginning under the Service & Support heading:
Technical Documents: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 12.1T: Caveats: Caveats for Cisco IOS Release 12.1T
On the Documentation CD-ROM at:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS 12.1T: Caveats: Caveats for Cisco IOS Release 12.1T
Note
http://www.cisco.com/support/bugtools
Platform-Specific Documents
These documents are available for the Cisco IAD2420 on Cisco.com and the Documentation CD-ROM:
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On Cisco.com, beginning under the Service & Support heading:
Technical Documents: Documentation Home Page: Access Servers and Access Routers: Fixed Configuration Access Routers: Cisco IAD2420 Series Routers
On the Documentation CD-ROM at:
Cisco Product Documentation: Access Servers and Access Routers: Fixed Configuration Access Routers: Cisco IAD2420 Series Routers
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 which are 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 two books: a configuration guide and a corresponding command reference. Chapters in a configuration guide describe protocols, configuration tasks, 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.
On Cisco.com and the Documentation CD-ROM, two master hot-linked documents provide information for the Cisco IOS software documentation set.
On Cisco.com, beginning under the Service & Support heading:
Technical Documents: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 12.1: Configuration Guides and Command References: Cisco IOS Interface Configuration Guide or Cisco IOS Interface Command Reference
On the Documentation CD-ROM at:
Cisco IOS Software Configuration: Cisco IOS Release 12.1: Configuration Guides and Command References: Cisco IOS Interface Configuration Guide or Cisco IOS Interface Command Reference
Release 12.1 Documentation Set
Table 6 describes the contents of the Cisco IOS Release 12.1 software documentation set, which is available in electronic form and in printed form upon request.
Note
You can reach the Cisco IOS documentation set on Cisco.com, beginning under the Service & Support heading:
Technical Documents: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 12.1: Configuration Guides and Command References
You can reach the Cisco IOS documentation set on the Documentation CD-ROM at:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.1: Configuration Guides and Command References
Note
Obtaining Documentation
World Wide Web
You can access the most current Cisco documentation on the World Wide Web at http://www.cisco.com. Translated documentation can be accessed at http://www.cisco.com/public/countries_languages.shtm.
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. Therefore, it is probably 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 product 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.
To submit your comments by mail, for your convenience many documents contain a response card behind the front cover. 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
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/
If you cannot resolve your technical issue by using the TAC online resources, Cisco.com registered users 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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