Table Of Contents
Release Notes for Cisco Aironet 1410 Bridges
for Cisco IOS Release 12.2(13)JA4Upgrading to a New Software Release
Default SSID and Distance Settings Change When You Change Role in Radio Network
Cisco Aironet Software Requires Completion of Encryption Authorization Form
Default Encryption Key 2 Is Set by Bridge
Limitation to PAgP Redundancy on Switches Connected by Bridge Links
power client n CLI Command Is Not Supported
ARP Table Is Corrupted When Multiple BVIs Are Configured
Bridge Cannot Detect Simultaneous Image Downloads
Bridge Cannot Detect Invalid Software When Using copy Command
Stacking Bridges Section Changes
New Transmit Power Options for Low-Power Bridges
New suspend Option in bridge protocol ieee Command
Obtaining Technical Assistance
Cisco Technical Support Website
Definitions of Service Request Severity
Obtaining Additional Publications and Information
Release Notes for Cisco Aironet 1410 Bridges
for Cisco IOS Release 12.2(13)JA4
April 19, 2004
These release notes describe caveats for Cisco IOS Release 12.2(13)JA4. They also provide important information about the Cisco Aironet 1410 Bridge (hereafter called bridge).
Contents
These release notes contain the following sections:
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Obtaining Technical Assistance
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Introduction
The Cisco Aironet 1400 Series Bridge is a wireless device designed for building-to-building wireless connectivity. Operating in the 5.8-GHz UNII 3 band (5725 to 5825 MHz), derived from the 802.11a standard, the bridge delivers 6 to 54 Mbps data rates without the need for a license. The bridge is a self-contained unit designed for outdoor installations, providing differing antenna gains as well as coverage patterns and supports both point-to-point and point-to-multipoint configurations.
The bridge uses a browser-based management system, but you can also configure the bridge using the command-line interface (CLI) through a Telnet session, Cisco IOS commands, or Simple Network Management Protocol (SNMP).
System Requirements
You should install Cisco IOS Release 12.2(13)JA4 on your bridge to incorporate the fixes identified in the Resolved Caveats section.
Finding the Software Version
To find the version of Cisco IOS software running on your bridge, use a Telnet session to log into the bridge and enter the show version EXEC command. This example shows command output from a bridge running Cisco IOS Release 12.2(11)JA:
bridge> show versionCisco Internetwork Operating System SoftwareIOS (tm) C1410 Software (C1410-K9W7-M), Version 12.2(11)JACopyright (c) 1986-2003 by Cisco Systems, Inc.You can also find the software version on the System Software Version page in the bridge's web-browser interface.
Upgrading to a New Software Release
For instructions on installing bridge software:
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http://www.cisco.com/univercd/cc/td/doc/product/wireless/index.htm
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Aironet 1400 Series Wireless LAN Products > Cisco Aironet 1400 Series Bridge > Cisco Aironet 1400 Series Bridge Software Configuration Guide > Managing Firmware and Configurations > Working with Software Images3.
http://www.cisco.com/public/sw-center/sw-ios.shtml
Log into Cisco.com to use the Cisco IOS Upgrade Planner.
Installation Notes
This section contains important information to keep in mind when installing your bridge.
Bridge Installation
The bridge is available in two configurations:
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Note
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Personnel installing the bridge must understand wireless bridging techniques, antenna alignment and adjustment, and grounding methods. The integrated antenna configuration can be installed by an experienced IT professional.
Stacking Bridges
You can double the throughput or create a standby link by stacking two bridges. A stacked installation consists of two bridge systems installed at the same physical location. For detailed mounting instructions refer to the Cisco Aironet 1400 Series Wireless Bridge Mounting Instructions that shipped with your bridge.
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Important Notes
This section describes important information about the bridge.
Default SSID and Distance Settings Change When You Change Role in Radio Network
If the bridge's SSID has not been changed from the default setting and you select Install Automatic Mode as the bridge's role in radio network setting, the SSID automatically changes from tsunami to autoinstall. When you change the role in radio network from Install Automatic Mode to Root or Non-Root, the SSID changes automatically from autoinstall back to tsunami. However, if you change the SSID from its default setting, changing the role in radio network setting does not change the SSID.
In Install Automatic Mode, the default distance setting is 99 km. When you change the role in radio network from Install Automatic Mode to Root or Non-Root, the distance setting changes automatically from 99 km to 0 km.
Cisco Aironet Software Requires Completion of Encryption Authorization Form
To access Cisco Aironet software from the Software Center on Cisco.com, you must now fill out a form to receive authorization to download encrypted software. Registered Cisco.com users are required to fill out the form only once, but public users must do so once each session, each time software is downloaded. A form is automatically created for public users. The form for Registered Cisco.com users is located at the following URL:
http://www.cisco.com/cgi-bin/Software/Crypto/crypto_main.pl
Default Encryption Key 2 Is Set by Bridge
The encryption key in slot 2 is the transmit key by default. If you enable WEP with MIC, use the same WEP key as the transmit key in the same key slot on both root and non-root bridges.
Limitation to PAgP Redundancy on Switches Connected by Bridge Links
When two switches configured for Port Aggregation Protocol (PAgP) are connected by redundant wireless bridge links, the PAgP switchover takes at least 30 seconds, which is too slow to maintain TCP sessions from one port to another.
power client n CLI Command Is Not Supported
The bridge does not support the power client n command in the browser or CLI interfaces.
bridge(config-if)# power client n(where n is a value of 12, 15, 18, 21, 22, 23, 24, or maximum)The bridge does not perform any action when you enter this command.
Default Infrastructure SSID
When VLAN is enabled, the WEP encryption mode and the WEP key are applicable only to a native VLAN. Any SSID configured should have the Infrastructure-SSID parameter enabled for that SSID. With the Infrastructure-SSID parameter enabled, the bridge ensures that a non-native VLAN cannot be assigned to that SSID.
ARP Table Is Corrupted When Multiple BVIs Are Configured
The bridge supports only one bridge virtual interface (BVI). Multiple BVIs should not be configured because the ARP table may become corrupted.
Bridge Power Up LED Colors
During power up the bridge LEDs display the following color sequences:
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Bridge Cannot Detect Simultaneous Image Downloads
Do not attempt to load software images into the bridge from both a Telnet session and console session simultaneously. The bridge cannot detect that two images are being loaded at the same time. For best results, use the archive download command in the CLI.
Bridge Cannot Detect Invalid Software When Using copy Command
The bridge sometimes cannot detect invalid software images when you load software using the copy command. For best results, use the archive download command in the CLI to load new software.
Caveats
This section lists open and resolved caveats in Cisco IOS Release 12.2(13)JA4 for the bridge.
Open Caveats
These caveats are open in Cisco IOS Release 12.2(13)JA4 for the bridge:
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Resolved Caveats
These caveats are resolved in Cisco IOS Release 12.2(13)JA4:
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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.
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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.
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These caveats are resolved in Cisco IOS Release 12.2(13)JA, 12.2(13)JA1, and 12.2(13)JA2:
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Troubleshooting
For the most up-to-date, detailed troubleshooting information, refer to the Cisco TAC website at http://www.cisco.com/tac. Click Technology Support, select Wireless from the menu on the left, and click Wireless LAN.
Documentation Updates
The Cisco Aironet 1400 Series Wireless Bridge Mounting Instructions provides detailed instructions for installing and mounting the bridge.
Stacking Bridges Section Changes
The separation distance between the two stacked bridge antennas is a minimum of 6.56 ft (2 m).
New Transmit Power Options for Low-Power Bridges
If your bridge is configured at the factory for use in a regulatory domain other than North America or Korea, the transmit power options for the power local command differ from the power options listed in the Cisco Aironet 1400 Series Bridge Software Configuration Guide and in the Cisco IOS Command Reference for Cisco Aironet Access Points and Bridges. The transmit power options for low-power bridges are 16, 13, 12, 10, 9, 8, 7, and 4 dBm. Note that the maximum transmit power for your bridge depends on your regulatory domain.
New suspend Option in bridge protocol ieee Command
The bridge protocol ieee command, which enables Spanning Tree Protocol (STP) on the bridge, now contains a suspend option. This option suspends STP on the bridge until you re-enable it.
New Event Messages
Table 1 lists new event messages added to the Error and Event Messages appendix in the Cisco Aironet 1400 Series Bridge Software Configuration Guide.
Related Documentation
These documents describe the installation and configuration of the bridge:
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Obtaining Documentation
Cisco documentation and additional literature are available on Cisco.com. Cisco also provides several ways to obtain technical assistance and other technical resources. These sections explain how to obtain technical information from Cisco Systems.
Cisco.com
You can access the most current Cisco documentation at this URL:
http://www.cisco.com/univercd/home/home.htm
You can access the Cisco website at this URL:
You can access international Cisco websites at this URL:
http://www.cisco.com/public/countries_languages.shtml
Ordering Documentation
You can find instructions for ordering documentation at this URL:
http://www.cisco.com/univercd/cc/td/doc/es_inpck/pdi.htm
You can order Cisco documentation in these ways:
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http://www.cisco.com/en/US/partner/ordering/index.shtml
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Documentation Feedback
You can send comments about technical documentation to bug-doc@cisco.com.
You can submit comments by using the response card (if present) behind the front cover of your document or by writing to the following address:
Cisco Systems
Attn: Customer Document Ordering
170 West Tasman Drive
San Jose, CA 95134-9883We appreciate your comments.
Obtaining Technical Assistance
For all customers, partners, resellers, and distributors who hold valid Cisco service contracts, Cisco Technical Support provides 24-hour-a-day, award-winning technical assistance. The Cisco Technical Support Website on Cisco.com features extensive online support resources. In addition, Cisco Technical Assistance Center (TAC) engineers provide telephone support. If you do not hold a valid Cisco service contract, contact your reseller.
Cisco Technical Support Website
The Cisco Technical Support Website provides online documents and tools for troubleshooting and resolving technical issues with Cisco products and technologies. The website is available 24 hours a day, 365 days a year at this URL:
http://www.cisco.com/techsupport
Access to all tools on the Cisco Technical Support Website requires a Cisco.com user ID and password. If you have a valid service contract but do not have a user ID or password, you can register at this URL:
http://tools.cisco.com/RPF/register/register.do
Submitting a Service Request
Using the online TAC Service Request Tool is the fastest way to open S3 and S4 service requests. (S3 and S4 service requests are those in which your network is minimally impaired or for which you require product information.) After you describe your situation, the TAC Service Request Tool automatically provides recommended solutions. If your issue is not resolved using the recommended resources, your service request will be assigned to a Cisco TAC engineer. The TAC Service Request Tool is located at this URL:
http://www.cisco.com/techsupport/servicerequest
For S1 or S2 service requests or if you do not have Internet access, contact the Cisco TAC by telephone. (S1 or S2 service requests are those in which your production network is down or severely degraded.) Cisco TAC engineers are assigned immediately to S1 and S2 service requests to help keep your business operations running smoothly.
To open a service request by telephone, use one of the following numbers:
Asia-Pacific: +61 2 8446 7411 (Australia: 1 800 805 227)
EMEA: +32 2 704 55 55
USA: 1 800 553 2447For a complete list of Cisco TAC contacts, go to this URL:
http://www.cisco.com/techsupport/contacts
Definitions of Service Request Severity
To ensure that all service requests are reported in a standard format, Cisco has established severity definitions.
Severity 1 (S1)—Your network is "down," or there is a critical impact to your business operations. You and Cisco will commit all necessary resources around the clock to resolve the situation.
Severity 2 (S2)—Operation of an existing network is severely degraded, or significant aspects of your business operation are negatively affected by inadequate performance of Cisco products. You and Cisco will commit full-time resources during normal business hours to resolve the situation.
Severity 3 (S3)—Operational performance of your network is impaired, but most business operations remain functional. You and Cisco will commit resources during normal business hours to restore service to satisfactory levels.
Severity 4 (S4)—You require information or assistance with Cisco product capabilities, installation, or configuration. There is little or no effect on your business operations.
Obtaining Additional Publications and Information
Information about Cisco products, technologies, and network solutions is available from various online and printed sources.
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http://www.cisco.com/go/marketplace/
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http://cisco.com/univercd/cc/td/doc/pcat/
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http://www.cisco.com/go/iqmagazine
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http://www.cisco.com/en/US/learning/index.html
This document is to be used in conjunction with the documents listed in the Related Documentation section.
Copyright © 2004 Cisco Systems, Inc. All rights reserved.
Printed in the USA on recycled paper containing 10% postconsumer waste.
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