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Table Of Contents
Release Notes for Cisco Aironet 1410 Wireless Bridges for Cisco IOS Release 12.3(8)JA2
Upgrading to a New Software Release
Default SSID and Distance Settings Change When You Change Role in Radio Network
Default Encryption Key 2 Is Set by Bridge
Limitation to PAgP Redundancy on Switches Connected by Bridge Links
CLI Command power client n 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
Telnet Session Sometimes Hangs or Will Not Start During Heavy Traffic
Stacking Bridges Section Changes
Optional Antenna Clarification
Obtaining Documentation and Submitting a Service Request
Release Notes for Cisco Aironet 1410 Wireless Bridges for Cisco IOS Release 12.3(8)JA2
June 1, 2006
These release notes describe features and open and resolved caveats for Cisco IOS Release 12.3(8)JA2. They also provide important information about the Cisco Aironet 1410 Wireless Bridge (hereafter called bridge).
Contents
These release notes contain the following sections:
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Obtaining Documentation and Submitting a Service Request
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 can install Cisco IOS Release 12.3(8)JA2 on all 1400 series bridges.
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(13)JA2:
bridge> show versionCisco Internetwork Operating System SoftwareIOS (tm) C1410 Software (C1410-K9W7-M), Version 12.2(13)JA2Copyright (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 access point software for your access point:
1.
http://www.cisco.com/cisco/web/psa/default.html
Choose Wireless > Outdoor Wireless > Cisco Aironet 1400 Series, scroll down and click Configure Guides.
2.
http://www.cisco.com/cisco/software/navigator.html
On the Web page, log in to access the Feature Navigator or the Cisco IOS Upgrade Planner, or click Wireless Software to go to the Wireless LAN Software page.
New Features
There are no new features in Cisco IOS Release 12.3(8)JA2.
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
Note
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.
Note
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.
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.
CLI Command power client n Is Not Supported
The bridge does not support the power client n configuration interface command in the web-browser or CLI interfaces. 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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b.
c.
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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.
Telnet Session Sometimes Hangs or Will Not Start During Heavy Traffic
When the bridge is transmitting and receiving heavy traffic, you sometimes cannot start a Telnet session and some existing Telnet sessions freeze or hang. However, this behavior is expected because the bridge gives top priority to data traffic and a lower priority to Telnet traffic.
Caveats
This section lists open and resolved caveats for the bridge.
Open Caveats
These caveats are open in Cisco IOS Release 12.3(8)JA2:
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On wireless bridges, all VLANs traversing the bridge link must use the same encryption settings. To avoid confusion, do not use the "vlan <vlan-id> keyword on the encryption command as shown in the following example:
interface dot11radio0 encryption key 1 size 128bit AAAAABBBBBCCCCCDDDDDEEEEEF transmit-key encryption mode wep mandatory micResolved Caveats
This caveat is resolved in Cisco IOS Release 12.3(8)JA2:
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Symptoms: A router may crash if it receives a packet with a specific crafted IP option as detailed in Cisco Security Advisory: Crafted IP Option Vulnerability:
Conditions: This DDTS resolves a symptom of CSCec71950. Cisco IOS with this specific DDTS are not at risk of crash if CSCec71950 has been resolved in the software.
Workaround: Cisco IOS versions with the fix for CSCec71950 are not at risk for this issue and no workaround is required. If CSCec71950 is not resolved, see the following Cisco Security Advisory: Crafted IP Option Vulnerability for workaround information:
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The Cisco IOS Transmission Control Protocol (TCP) listener in certain versions of Cisco IOS software is vulnerable to a remotely-exploitable memory leak that may lead to a denial of service condition.
This vulnerability only applies to traffic destined to the Cisco IOS device. Traffic transiting the Cisco IOS device will not trigger this vulnerability.
Cisco has made free software available to address this vulnerability for affected customers.
This issue is documented as Cisco bug ID CSCek37177.
There are workarounds available to mitigate the effects of the vulnerability.
This advisory is posted at http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20070124-crafted-tcp
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If You Need More Information
If you need information about a specific caveat that does not appear in these release notes, you can use the Cisco Bug Toolkit to find select caveats of any severity. Click this URL to browse to the Bug Toolkit:
http://tools.cisco.com/Support/BugToolKit/
(If you request a defect that cannot be displayed, the defect number might not exist, the defect might not yet have a customer-visible description, or the defect might be marked Cisco Confidential.)
Troubleshooting
For the most up-to-date, detailed troubleshooting information, refer to the Cisco TAC website at http://www.cisco.com/cisco/web/support/index.html. Click Technology Support, choose 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).
Optional Antenna Clarification
The Quick Start Guide: Cisco Aironet 1400 Series Wireless Bridge states on page 6 that the external antenna version of the bridge connects to an optional antenna. The statement is incorrect. The external antenna of the bridge has no installed antenna. The customer must purchase the antenna for the this version. There are three antenna options available for the external antenna version and the customer must purchase at least one to make the bridge operational.
A revision to this guide will be released at a future date.
Related Documentation
These documents describe the installation and configuration of the bridge:
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Obtaining Documentation and Submitting a Service Request
For information on obtaining documentation, submitting a service request, and gathering additional information, see the monthly What's New in Cisco Product Documentation, which also lists all new and revised Cisco technical documentation:
http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html
Subscribe to the What's New in Cisco Product Documentation as an RSS feed and set content to be delivered directly to your desktop using a reader application. The RSS feeds are a free service. Cisco currently supports RSS Version 2.0.
Cisco and the Cisco logo are trademarks or registered trademarks of Cisco and/or its affiliates in the U.S. and other countries. To view a list of Cisco trademarks, go to this URL: www.cisco.com/go/trademarks. Third-party trademarks mentioned 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. (1110R)
Copyright © 2006 Cisco Systems, Inc. All rights reserved.
