TAC Newsletter

Cisco Technical Assistance Center (TAC)
Newsletter

Vol. 2, No. 11, Nov., 2000

Unmatched Online Technical Support

www.cisco.com/tac

In This Issue:
What's Hot
Password Recovery
IP Routing Protocols
LAN
Access
Cable
WAN Switching
ATM
IBM
Security
WAN Technology
Network Management Systems
Voice and Telephony
Core/High-end Routers
Cisco Intelligent Contact Mgmt.
Cisco IOS® Software
TAC Newsletter Archive
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The Cisco TAC Newsletter provides online technical support information developed by Cisco TAC engineers. All of the resources found in this newsletter can be located by visiting the Cisco TAC Web site at www.cisco.com/tac.

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What's Hot

Top Issues:
New TAC Solutions to the Hottest Virtual Private Network (VPN) Challenges

Cisco TAC engineers have just released a series of VPN solutions in the "Top Issues" section of the Cisco TAC Web site that are guaranteed to resolve the most common VPN problems that customers report. These solutions include:

Configuring the Cisco Secure PIX Firewall with a VPN Client
Understanding and Configuring a Router for IPSec Tunnels
Configuring IPSec Between Two PIX Firewalls
Configuring the Cisco VPN 3000 Concentrator
And many more...

For the fastest and most efficient way to resolve your VPN issue, visit the "Top Issues" section at:
http://www.cisco.com/tac

Cisco Feature Navigator:
It's Easier than Ever to Identify the Right Cisco IOS® Software Release!

The Cisco Feature Navigator helps you quickly determine which Cisco IOS software images support a particular set of features, or which features are supported in a particular Cisco IOS software release or image.

With just a few clicks, this application will help you:

Save time by identifying the right Cisco IOS software release for your needs
Increase productivity by finding a release common to your different hardware
Plan accurately for future hardware and software upgrades
Quickly deploy advanced IP services such as MPLS or Multicast

Cisco IOS releases currently supported in Feature Navigator include: 11.2, 11.2P, 11.3, 11.3T, 12.0, 12.0T, 12.1, and 12.1T.

Registered users can go to TAC Web site's "Tools" section to access the Cisco Feature Navigator:
http://www.cisco.com/tac/

Cisco Compatibility Advisor:
A Fast and Simple Way to Match Cisco Catalyst® Hardware with Operating Software

The Cisco Compatibility Advisor now provides system-level compatibility information for Cisco Catalyst® 5000 and Catalyst 6000 family switches, including the highly requested Gigabit Ethernet and ATM modules.

Use the Compatibility Advisor to enter your planned or existing hardware configuration and determine the recommended and minimum versions of Catalyst operating system software. You can also use a command parser to cut and paste "show ver" and "show mod" commands into the tool, allowing the Compatibility Advisor to determine your current hardware configuration. This tool was recently enhanced with a streamlined user interface and improved logic that make it easier to enter hardware configurations.

Registered users can go to TAC Web site's "Tools" section to access the Compatibility Advisor:
http://www.cisco.com/tac/

TAC Product Pages:
Find the Answers You Need for Cisco Aironet 340 Series Products

If your network includes the Cisco Aironet 340 Series Wireless LAN products, the Cisco TAC Product Pages can give you answers to your technical support issues. These pages offer hardware installation and configuration guides for product components including the bridge, antenna, access points, and client adapters. Registered users can also download software drivers and utilities.

Access Cisco Aironet 340 Series support information in the "Wireless LAN" section:
http://www.cisco.com/tac/products

TAC Product Pages:
Support Resources Now Available for Cisco CSS 11000 Series and Cisco Content Engine 500 Series

The TAC Product Pages on the Cisco TAC Web site now cover two additional products in the Content Delivery Devices section. For the CSS 11000 series, valuable technical support resources include hardware information and software samples and tips. Registered TAC users can also access the Stack Decoder tool for troubleshooting.

For the Cisco Content Engine 500 series, you will find:

Product documentation
Software tips and examples
A troubleshooting guide
Stack Decoder and Bug Navigator tools (available only to registered users)

Obtain support for the Cisco CSS 11000 and Cisco Content Engine 500 in the "Content Delivery Devices" section:
http://www.cisco.com/tac/products

TAC Product Pages:
New Documents Help You Deploy the Cisco Secure Intrusion Detection System

In the "Security" section of the TAC Product Pages, you'll find a new listing for the Cisco Secure Intrusion Detection System (IDS). New troubleshooting documents are now available that will help you deploy this security solution more effectively and troubleshoot numerous technical issues that may arise, including:

An Intrusion Detection Planning Guide that presents security design considerations and example deployment scenarios
Software examples and tips
Troubleshooting steps for software
Guidelines for interpreting log files

Locate troubleshooting resources for the Cisco Secure IDS in the "Security" section:
http://www.cisco.com/tac/products

Cisco Networking Professionals Connection:
New Interactive Voice and Video forum available for the Online Community

Share insights and discuss ideas with your peers and Cisco's technical experts in the Networking Professionals Connection's (NetPro) Voice and Video forum. This new forum offers discussions on IP telephony, video over IP, migration, and open voice applications.

The NetPro site also features:

A VPN forum, offering the latest insights and trends for VPN technology
Message boards that allow interaction with other networking professionals
And many more...

Check out this new online forum today at:
http://www.cisco.com/go/netpro

Password Recovery

Tech Tip:
New Additions to TAC Web Site's Password Recovery Section

New password recovery documents include:

Resource Manager Essentials (RME) Releases 2.x and 3.x
Cisco 700 Series Routers

The Password Recovery Procedures Index also supports additional password recovery Technologies, including:

High-End Routers
LAN Switches
LAN Switches Modules
Access Products
Web Scaling
AVVID Hardware and Applications
Security

http://www.cisco.com/warp/customer/474/
(available to registered users)

http://www.cisco.com/warp/public/474/
(available to non-registered users)

IP Routing Protocols

Top Issues:
Cisco's Hottest IP Routing Protocols Issues Worldwide

http://www.cisco.com/tac/topissues/

Tech Tip:
Routing Protocols Technical Tips for Using and Deploying Cisco IOS Software Features and Services

http://www.cisco.com/kobayashi/technotes/tech_protocol.shtml
(available to registered users)

http://www.cisco.com/public/technotes/tech_protocol.shtml
(available to non-registered users)

LAN Products and Technologies

Top Issues:
Cisco's Hottest LAN Issues Worldwide

http://www.cisco.com/tac/topissues/

Field Notice:
Cisco Catalysts 1900/2820 Series Cannot Save VTP Configuration to Flash

http://www.cisco.com/warp/customer/770/fn12929.shtml
(available to registered users)

http://www.cisco.com/warp/public/770/fn12929.shtml
(available to non-registered users)

Field Notice:
Catalyst 2912/2924 Switches with Wrong LEDs Installed

http://www.cisco.com/warp/customer/770/fn12923.shtml
(available to registered users)

http://www.cisco.com/warp/public/770/fn12923.shtml
(available to non-registered users)

Sample Configuration:
Catalyst 4908G-L3 VLAN Routing and Bridging Sample Configuration

http://www.cisco.com/warp/customer/473/40.html
(available to registered users)

http://www.cisco.com/warp/public/473/40.html
(available to non-registered users)

Tech Tip:
IP MultiLayer Switching Sample Configuration

http://www.cisco.com/warp/customer/473/39.html
(available to registered users)

http://www.cisco.com/warp/public/473/39.html
(available to non-registered users)

Tech Tip:
Understanding the Catalyst Switched Port Analyzer Feature

http://www.cisco.com/warp/customer/473/41.html
(available to registered users)

http://www.cisco.com/warp/public/473/41.html
(available to non-registered users)

Access Products and Technologies

Top Issues:
Cisco's Hottest Access-Dial and DSL Issues Worldwide

http://www.cisco.com/tac/topissues/

Field Notice:
GR-303 Call Processing Characterized by Loss of Dial Tone

http://www.cisco.com/warp/customer/770/fn12913.html
(available to registered users)

http://www.cisco.com/warp/public/770/fn12913.html
(available to non-registered users)

Tech Tip:
Comparing NextPort SPE Commands to MICA Modem Commands

http://www.cisco.com/warp/customer/76/nextport_compare.html
(available to registered users)

http://www.cisco.com/warp/public/76/nextport_compare.html
(available to non-registered users)

Cable

Technology Pages:
Obtain Numerous Troubleshooting Documents for Cisco Cable Technologies

http://www.cisco.com/cgi-bin/Support/PSP/psp_view.pl?p=Internetworking:Cable
(available to registered users)

http://www.cisco.com/pcgi-bin/Support/PSP/psp_view.pl?p=Internetworking:Cable
(available to non-registered users)

Tech Tip:
Troubleshooting uBR Cable Modems Not Coming Online

http://www.cisco.com/warp/customer/109/troubleshooting_cm_online.html
(available to registered users)

http://www.cisco.com/warp/public/109/troubleshooting_cm_online.html
(available to non-registered users)

Tech Tip:
Config File Download and Console Lock

http://www.cisco.com/warp/customer/109/ios_conf_download_notes.html
(available to registered users)

http://www.cisco.com/warp/public/109/ios_conf_download_notes.html
(available to non-registered users)

WAN Switching

Top Issues:
Cisco's Hottest WAN Switching Issues Worldwide

http://www.cisco.com/tac/topissues/

Tech Tip:
AUSM-8T1/B-to-3620 IMA Sample Configuration

http://www.cisco.com/warp/customer/74/ausmb_3640config.html
(available to registered users)

http://www.cisco.com/warp/public/74/ausmb_3640config.html
(available to non-registered users)

ATM Technologies

Top Issues:
Cisco's Hottest ATM Issues Worldwide

http://www.cisco.com/tac/topissues/

Sample Configuration:
Routed RFC1483 on the ATM Router Module

http://www.cisco.com/warp/customer/121/rfc1483_arm.html
(available to registered users)

http://www.cisco.com/warp/public/121/rfc1483_arm.html
(available to non-registered users)

Sample Configuration:
LAN Emulation Using the ATM Router Module

http://www.cisco.com/warp/customer/121/atm_arm_rt.html
(available to registered users)

http://www.cisco.com/warp/public/121/atm_arm_rt.html
(available to non-registered users)

IBM

Top Issues:
Cisco's Hottest IBM Issues Worldwide

http://www.cisco.com/tac/topissues/

Tech Tip:
DLSw+ SAP/MAC Filtering Techniques

http://www.cisco.com/warp/customer/697/dlswfilter.html
(available to registered users)

http://www.cisco.com/warp/public/697/dlswfilter.html
(available to non-registered users)

Tech Tip:
Understanding Service Access Point Access Control Lists

http://www.cisco.com/warp/customer/698/acl200.html
(available to registered users)

http://www.cisco.com/warp/public/698/acl200.html
(available to non-registered users)

Security Products and Technologies

Top Issues:
Cisco's Hottest PIX Firewall and VPN Issues Worldwide

For answers to the most common Cisco Secure PIX Firewall and VPN issues customers contact the Cisco TAC about, visit:

http://www.cisco.com/tac/topissues/

Field Notice:
Cisco Secure PIX(TM) Firewall Mailguard Vulnerability Revision 1.1

http://www.cisco.com/warp/customer/707/PIXfirewallSMTPfilter-pub.shtml
(available to registered users)

http://www.cisco.com/warp/public/707/PIXfirewallSMTPfilter-pub.shtml
(available to non-registered users)

Sample Configuration:
TACACS+ and RADIUS Xauth with VPN Client

http://www.cisco.com/warp/customer/480/xauthTR.html
(available to registered users)

http://www.cisco.com/warp/public/480/xauthTR.html
(available to non-registered users)

Sample Configuration:
Local Xauth with VPN Client

http://www.cisco.com/warp/customer/480/xauthlocal.html
(available to registered users)

http://www.cisco.com/warp/public/480/xauthlocal.html
(available to non-registered users)

Tech Tip:
Network Security Policy: Best Practices White Paper

http://www.cisco.com/warp/customer/126/secpol.html
(available to registered users)

http://www.cisco.com/warp/public/126/secpol.html
(available to non-registered users)

Tech Tip:
How to Configure the VPN 3000 Concentrator with Microsoft Certificates

http://www.cisco.com/warp/customer/471/installmscert.html
(available to registered users)

http://www.cisco.com/warp/public/471/installmscert.html
(available to non-registered users)

WAN Technologies

Field Notice:
EEPROM Problem in Cisco 6732 Chassis

http://www.cisco.com/warp/customer/770/fn11731.html
(available to registered users)

http://www.cisco.com/warp/public/770/fn11731.html
(available to non-registered users)

Network Management Systems Products and Technologies

Top Issues:
Cisco's Hottest NMS Issues Worldwide

http://www.cisco.com/tac/topissues/

Field Notice:
Service Level Manager 1.0 License Expiration

http://www.cisco.com/warp/customer/770/fn12938.html
(available to registered users)

http://www.cisco.com/warp/public/770/fn12938.html
(available to non-registered users)

Tech Tip:
Changing the IP Address and Hostname of an RWAN or LMS Server in Solaris 2.6

http://www.cisco.com/warp/customer/477/RME/sol_hostname.html
(available to registered users)

http://www.cisco.com/warp/public/477/RME/sol_hostname.html
(available to non-registered users)

Tech Tip:
Changing the IP Address and Hostname of an RWAN or LMS Server in Windows NT

http://www.cisco.com/warp/customer/477/RME/winnt_hostname.html
(available to registered users)

http://www.cisco.com/warp/public/477/RME/winnt_hostname.html
(available to non-registered users)

Voice and Telephony

Field Notice:
Random Reboots of MCUs and Gateways in Cisco IP/VC™ 3500 Series

http://www.cisco.com/warp/customer/770/fn12941.shtml
(available to registered users)

http://www.cisco.com/warp/public/770/fn12941.shtml
(available to non-registered users)

Tech Tip:
Packet Voice, Video, and Telephony Technical Tips

http://www.cisco.com/warp/customer/788/index.shtml
(available to registered users)

http://www.cisco.com/warp/public/788/index.shtml
(available to non-registered users)

Tech Tip:
Voice over IP-Per Call Bandwidth Consumption

http://www.cisco.com/warp/customer/788/pkt-voice-general/bwidth_consume.html
(available to registered users)

http://www.cisco.com/warp/public/788/pkt-voice-general/bwidth_consume.html
(available to non-registered users)

Tech Tip:
How to Configure Speed Dials in Call Manager 3.0

http://www.cisco.com/warp/customer/788/AVVID/cm_speed_dial.html
(available to registered users)

http://www.cisco.com/warp/public/788/AVVID/cm_speed_dial.html
(available to non-registered users)

Tech Tip:
MCS-78XX Boot Error Codes

http://www.cisco.com/warp/customer/788/AVVID/mcs_boot.html
(available to registered users)

http://www.cisco.com/warp/public/788/AVVID/mcs_boot.html
(available to non-registered users)

Tech Tip:
Setting up CallManager Traces for the TAC

http://www.cisco.com/warp/customer/788/AVVID/cm_trace.html
(available to registered users)

http://www.cisco.com/warp/public/788/AVVID/cm_trace.html
(available to non-registered users)

Tech Tip:
Fixing Problems with DC Directory

http://www.cisco.com/warp/customer/788/AVVID/dc_directory.html
(available to registered users)

http://www.cisco.com/warp/public/788/AVVID/dc_directory.html
(available to non-registered users)

Tech Tip:
Uone Gives Message Count Ten Seconds After Pin Number is Entered

http://www.cisco.com/warp/customer/788/uone_message.html
(available to registered users)

http://www.cisco.com/warp/public/788/uone_message.html
(available to non-registered users)

Core/High-end Routers

Field Notice:
VIP2-40/50 Component Compatibility Issue Results in Timing Problems

http://www.cisco.com/warp/customer/770/fn12906.html
(available to registered users)

http://www.cisco.com/warp/public/770/fn12906.html
(available to non-registered users)

Field Notice:
Early Version of PA-A3-xxx Cards Exhibit ATM Performance Limitations

http://www.cisco.com/warp/customer/770/fn12940.shtml
(available to registered users)

http://www.cisco.com/warp/public/770/fn12940.shtml
(available to non-registered users)

Tech Tip:
Disaster Recovery: Best Practices White Paper

http://www.cisco.com/warp/customer/63/disrec.html
(available to registered users)

http://www.cisco.com/warp/public/63/disrec.html
(available to non-registered users)

Tech Tip:
Change Management: Best Practices White Paper

http://www.cisco.com/warp/customer/126/chmgmt.shtml
(available to registered users)

http://www.cisco.com/warp/public/126/chmgmt.shtml
(available to non-registered users)

Tech Tip:
VIP CPU Running at 99% and Rx-Side Buffering

http://www.cisco.com/warp/customer/63/vip_cpu_rxbuffering.html
(available to registered users)

http://www.cisco.com/warp/public/63/vip_cpu_rxbuffering.html
(available to non-registered users)

Cisco Intelligent Contact Management (ICM)

Tech Tip:
ICM Upgrade Process

http://www.cisco.com/warp/customer/78/icm_upgrade.html
(available to registered users)

http://www.cisco.com/warp/public/78/icm_upgrade.html
(available to non-registered users)

Tech Tip:
ICM Third-Party Software Compatibility Matrix

http://www.cisco.com/warp/customer/78/sw_compatability_matrix.html
(available to registered users)

http://www.cisco.com/warp/public/78/sw_compatability_matrix.html
(available to non-registered users)

Tech Tip:
ICM Recommended Hardware Specifications

http://www.cisco.com/warp/customer/78/hardwr_specs.html
(available to registered users)

http://www.cisco.com/warp/public/78/hardwr_specs.html
(available to non-registered users)

Tech Tip:
Switch Requirements for ICM Release 2.5

http://www.cisco.com/warp/customer/78/switch_req_25.html
(available to registered users)

http://www.cisco.com/warp/public/78/switch_req_25.html
(available to non-registered users)

Tech Tip:
Switch Requirements for ICM Release 4.0

http://www.cisco.com/warp/customer/78/switch_req_40.html
(available to registered users)

http://www.cisco.com/warp/public/78/switch_req_40.html
(available to non-registered users)

Tech Tip:
Switch Requirements for ICM Release 4.1

http://www.cisco.com/warp/customer/78/switch_req_41.html
(available to registered users)

http://www.cisco.com/warp/public/78/switch_req_41.html
(available to non-registered users)

Tech Tip:
How to Verify If Enterprise-Wide Default Routing Is Occurring with Cisco ICM

http://www.cisco.com/warp/customer/78/verify_default_routing.html
(available to registered users)

http://www.cisco.com/warp/public/78/verify_default_routing.html
(available to non-registered users)

Cisco IOS Software*

Field Notice:
Endless BGP Convergence Problem in Cisco IOS Software Releases

http://www.cisco.com/warp/customer/770/fn12942.html
(available to registered users)

http://www.cisco.com/warp/public/770/fn12942.html
(available to non-registered users)

* You can find all these releases at
http://www.cisco.com/cgi-bin/iosplanner/iosplanner.cgi?
(available to Cisco end users and partner customers with TAC Software Center Access)

TAC Newsletter Archive

To view the past issues of the TAC Newsletters, please visit:
http://www.cisco.com/tac/newsletter

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