Cisco Logo Cisco Technical Assistance Center (TAC)
Newsletter
TAC Certified
Vol. 3, No. 3 March 2001 Unmatched Online Technical Support www.cisco.com/tac
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In This Issue:
What's Hot
Virtual Private Networks (VPN)
Security
IP Routing Protocols
DSL
Cable
Access Servers
LAN
Wireless LAN
Core/High-End Routers
WAN Switching
Packet Voice and Video
Telephony
Network Management Systems (NMS)
IBM
Content Delivery Devices
Customer Contact
Cisco IOS® Software
TAC Newsletter Archive
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…please visit the "About This Newsletter" section, located at the end of this newsletter.

The Cisco TAC Newsletter
provides you with breaking information about the latest online technical support resources developed by Cisco engineers. All the resources contained within this newsletter can be found by visiting the Cisco TAC Web site at: www.cisco.com/tac


Upcoming Changes to the Cisco TAC Web Site

Over the course of the next four to six months, you will notice several significant changes taking place on the Cisco TAC Web site. First, a customized technical support-focused search application will be deployed on the site. We are also enhancing site personalization and content navigation. Our goal is to help you quickly and easily find answers to your technical questions. All of these changes are based on your feedback and input from product beta tests, advisory boards, customer surveys, and other events. The Cisco TAC Web Team values your input, and we are working hard to implement your great ideas! Thanks again for your commitment to making the Cisco TAC Web site a better technical support resource for everyone.

Cisco TAC Web site online feedback forms can be found at:
http://www.cisco.com/public/support/feedback/solicited-promo/global.html


What's Hot

Cisco TAC Case Open Tool - URGENT BREAKING NEWS:
Faster Response Time for All P3 and P4 Cases Opened Online

If you need technical support regarding a Priority 3 (P3) or Priority 4 (P4) network issue, opening your support case online via the Cisco Technical Assistance Center (TAC) Case Open tool ensures that your case will receive a faster response time from the TAC than your cases opened via the telephone.

The Case Open tool not only diagnoses your technical issue but makes suggestions to online solutions during the case opening process. These recommendations give you an opportunity to resolve your issue immediately, without further delay!

The Case Open tool is designed to handle all P3 and P4 support cases that deal with non-critical network situations, including:

  • When you need information about Cisco product capabilities, installation advice, or basic product configuration data.
  • When your network performance is degraded, although your network remains up and running.

Please bookmark the following Case Open tool URL for the fastest and most convenient way to open all your future P3 and P4 cases:

http://www.cisco.com/tac/caseopen
(available to registered users only)


State-of-the-Art Tool on Cisco TAC Home Page - NEW:
Interactive Tool Helps Locate Relevant Technical Content

The Cisco Technical Assistance Center (TAC) proudly announces the availability of a new interactive resource for locating relevant technical content.

This interactive tool does more than the average search feature. By asking the right questions, this resource identifies useful information and shortens your research session. This application also tracks the progress of your query and allows you to go back to add information or start over. At the end of your session, you receive only relevant documents.

This resource can help you quickly find information on topics such as:

  • Booting or starting up your Cisco product for the first time
  • Configuration, installation or upgrades for hardware, firmware or Cisco Operating System
  • Connectivity issues
  • Looking up commands
  • Network management applications
  • Network security issues
  • Recovering the password on your products
  • Configuring new protocols on your products
  • Locating information in the TAC knowledge bases
  • Troubleshooting problems

This new resource for locating relevant technical content can be found at:

http://www.cisco.com/kobayashi/support/kbase.shtml
(available to registered users only)


Software Installation and Upgrade Procedures Top Issues - NEW:
A One-Stop Shop for Software Installation and Upgrade Procedures Information

The new "Software Installation and Upgrade Procedures Top Issues" section is a compilation of links to technical support information that assists you with software selection, installation, and upgrades. No matter what your level of experience, these step-by-step procedures will familiarize you with Cisco software products. If your software installation or upgrade fails, helpful tips on recovery procedures are also available.

Software selection, installation, and upgrade support information is available for the following Cisco products:

  • Access Products
  • DSL Products
  • High-End Routers
  • LAN Switches Modules
  • Security Products
  • Voice Products
  • WAN / LAN / ATM Switches
  • Wireless LAN

To access this useful software selection, installation, and upgrade resource, please visit:

http://www.cisco.com/warp/customer/130/upgrade_index.shtml
(available to registered users)

http://www.cisco.com/warp/public/130/upgrade_index.shtml
(available to non-registered users)


IBM Technologies Top Issues - UPDATED:
New Support Information for Solving Common IBM Problems Related to ISL Trunking, BSTUN, and STUN

Cisco TAC engineers have updated the "IBM Technologies Top Issues" section to include new configuration tips for resolving the most common Inter-Switch Link (ISL) Trunking, Block Serial Tunneling (BSTUN), and Serial Tunneling (STUN) related IBM technology network problems.

Cisco provides solutions for common ISL, BSTUN, and STUN issues such as:

  • How-To Guide for ISL Trunking Between Catalyst 5000 and 39000, and Catalyst 5000 and Cisco Routers
  • BSTUN Sample Configurations
  • STUN Over Frame Relay Configurations

Technical support guidance is also provided for other commonly occurring technical issues, including:

  • Systems Network Architecture (SNA) Channel Connections and the debug filter utility
  • Configuration and usage of show dlsw circuit, show dlsw peer, and show dlsw reach commands
  • Source-route bridging (SRB), source-route translational bridging (SRTLB), and decoding the routing information field

To access the "IBM Technologies Top Issues" section, visit:

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

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


LAN Technologies Top Issues - UPDATED:
New Tips for LAN Technologies

The recently updated Cisco "LAN Technologies Top Issues" section now provides you with new technical support answers from the LAN experts at the Cisco Technical Assistance Center.

Recent additions to this "Top Issues" section include:

  • Configuring, error messages, recovering, troubleshooting, and upgrading for Catalyst series switches
  • Troubleshooting Switch Port problems
  • Understanding and troubleshooting common Novell IPX issues
  • Windows Networking Design Implementation Guide

If you're looking for a good Cisco LAN support resource, check out the "LAN Technologies Top Issues" section at:

http://www.cisco.com/warp/customer/473/top_issues/lan/top_issues_lan.shtml
(available to registered users)

http://www.cisco.com/warp/public/473/top_issues/lan/top_issues_lan.shtml
(available to non-registered users)


LAN Technology Pages - UPDATED:
Additional LAN Technologies Support Information

Online technical support information is now available for several more Cisco-enabled LAN technologies, including:

  • AppleTalk
  • Internet Packet Exchange (IPX)
  • Private Virtual Local Area Networks (VLANs)
  • Switch Clustering
  • Switch Port Analyzer

If you are new to Cisco LAN technologies, you will find the new "Basic System Parameters" section useful. This section provides a comprehensive introduction to Cisco Catalyst products and technologies, as well as various desktop protocols.

To access online technical support information for Cisco LAN Technologies, please visit:

http://www.cisco.com/cgi-bin/Support/PSP/index.pl?i=Technologies
(available to registered users)

http://www.cisco.com/pcgi-bin/Support/PSP/index.pl?i=Technologies
(available to non-registered users)


Troubleshooting Assistant Tool - NEW:
Online Troubleshooting for Cisco 2500, 7200, and 61xx Series Routers and DSL- and LAN-Related Network Problems

The enhanced Troubleshooting Assistant tool now helps you resolve technical issues your Cisco 2500, 7200, and 61xx Series routers, as well as DSL and LAN products and technologies. This tool guides you step-by-step to identify problems and offers you solutions.

If you are new to Cisco 2500 Router issues, visit the Troubleshooting Assistant tool's enhanced step-by-step help system at:

http://www.cisco.com/tac/newsletter/vol3no3/2500step.html
(available to registered users only)

If you are experienced with Cisco 2500 Router issues, visit the Troubleshooting Assistant tool's enhanced Advanced Search help system:

http://www.cisco.com/tac/newsletter/vol3no3/2500.html
(available to registered users only)

If you are new to Cisco 7200 and 61xx routers and DSL issues, visit the Troubleshooting Assistant tool's enhanced step-by-step help system at:

http://www.cisco.com/tac/newsletter/vol3no3/dslstep.html
(available to registered users only)

If you are experienced with Cisco 7200 and 61xx routers and DSL issues, visit the Troubleshooting Assistant tool's enhanced Advanced Search help system:

http://www.cisco.com/tac/newsletter/vol3no3/dsl.html
(available to registered users only)

To access the Troubleshooting Assistant tool's new LAN resources, please visit:

http://www.cisco.com/tac/newsletter/vol3no3/lansw.html
(available to registered users only)


Wireless LAN Technology Pages - UPDATED:
Information about WEP and EAP Added

Explanations of Wired Equivalent Privacy (WEP) and Extensible Authentication Protocol (EAP), how each works, and when each should be used, have been added to the TAC Wireless LAN Technology Pages.

Security information, critical to the planning, designing, implementing, and operating of a Wireless LAN network, are also available in these pages, including:

  • Access control
  • Authentication protocols
  • Encryption schemes
  • Security threats

The Wireless LAN Technology Pages can be found at:

http://www.cisco.com/cgi-bin/Support/PSP/index.pl?i=Technologies#Wireless_-_LAN
(available to registered users)

http://www.cisco.com/pcgi-bin/Support/PSP/index.pl?i=Technologies#Wireless_-_LAN
(available to non-registered users)


VPN Solutions Pages - NEW and IMPROVED:
One-Stop Shop for VPN Security Solutions

The new Cisco TAC Virtual Private Networks (VPN) Solutions Pages are now available. This section provide you with a one-stop shop where you can access the latest information about VPN applications, hardware, security, and training resources, including:

  • Generic Routing Encapsulation (GRE)
  • Layer 2 Forwarding Protocol (L2F)
  • Layer 2 Tunnel Protocol (L2TP)
  • Multiprotocol Label Switching (MPLS)
  • Point-to-Point Tunnel Protocol (PPTP)
  • Secure Shell (SSH)
  • Cisco Secure Policy Manager
  • Cisco Secure VPN Client
  • Cisco VPN 3000 and 5000 Client
  • Cisco VPN 3000 and 5000 Concentrator

Now you have the convenience of going to one unique location on the Cisco TAC Web Site to locate your VPN support resources at:

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

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


Content Delivery Product Pages - NEW:
Support Information for the Cisco Content Router 4400

If you use a Cisco Content Router 4400 to direct Web site visitors, you will benefit from the most recent addition to the Content Delivery Product Pages. Technical documentation dealing with the hardware, software, and troubleshooting of the Content Router 4400 is now available. Examples of support-related questions that are answered by the new Content Router 4400 documentation include:

  • How can I recover a lost password?
  • What are the optimal site conditions to properly maintain a Cisco Content Router 4400?
  • When should I apply the debug command?
  • Which network topology considerations impact the optimization of the Cisco Content Router 4400?
  • Which security vulnerabilities should I account for?

For answers to these and other questions about the Cisco Content Router 4400, please visit:

http://www.cisco.com/cgi-bin/Support/PSP/index.pl?i=Products#Content_Delivery
(available to registered users)

http://www.cisco.com/pcgi-bin/Support/PSP/index.pl?i=Products#Content_Delivery_Devices
(available to non-registered users)


Cisco TAC Web Tools Training - REGISTER SOON:
Free Training on Cisco Web-based Technical Support Resources

The online Cisco TAC Web Tools Showcase provides training on how to utilize Cisco TAC Web Site resources effectively. Familiarize yourself with the TAC Web resources by watching the presentation online while you listen to a live presenter over the phone. At the conclusion of the presentation, you may ask questions about the tools and content related to your specific interests and issues.

This training session will teach you how to find the technical information necessary for:

  • Designing and supporting your networks
  • Enhancing your networking skills
  • Implementing and configuring products and networks
  • Troubleshooting network issues

To view training dates and register for this online seminar, please visit:

http://cisco.evoke.com
(available to registered and non-registered users)

An international contact number is available. Please note that fees for international calls are the responsibility of the customer.


New Product Introduction Training - NEW:
Cisco Aironet WGB 340 and Cisco Content Engine 590 Product Modules Added

Cisco TAC New Product Introduction (NPI) Training provides high-quality, cost-effective training for the Cisco Aironet WGB 340, Cisco Content Engine 590 product modules, and other Cisco products.

This TAC NPI training provides you with the latest Cisco product, deployment, configuration, and troubleshooting information. And because the NPI training is located in the TAC Web Site "Training" section, you can access Cisco product training, complete with streaming media presentations any time.

To learn more about the TAC NPI training, please visit:

http://www.cisco.com/kobayashi/news_training/tac_training.html
(available to registered users only)


Virtual Private Network (VPN)

Sample Configuration:
Cisco VPN 3000 Concentrator - Blocking with Filters and RADIUS Filter Assignment

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

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


Sample Configuration:
IPSec - Cisco Secure VPN Client to Central Router Controlling Access

http://www.cisco.com/warp/customer/707/oddconfig.html
(available to registered users)

http://www.cisco.com/warp/public/707/oddconfig.html
(available to non-registered users)


Tech Note:
How to Configure the VPN 3000 Concentrator PPTP with Funk RADIUS Authentication

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

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


Tech Note:
Using Cisco Secure ACS for Windows 2.5 with the VPN 3000 Concentrator

http://www.cisco.com/warp/customer/707/CiscoSecure.html
(available to registered users)

http://www.cisco.com/warp/public/707/CiscoSecure.html
(available to non-registered users)


Security

Sample Configuration:
Cisco Secure PIX™ Firewall and VPN Clients Using PPTP, MPPE and IPSec

http://www.cisco.com/warp/customer/110/pptpcrypto3.html
(available to registered users)

http://www.cisco.com/warp/public/110/pptpcrypto3.html
(available to non-registered users)


Tech Note:
Cisco Secure IDS - Configuring/Troubleshooting E-Mail Notifications

http://www.cisco.com/warp/customer/707/nrmail.html
(available to registered users)

http://www.cisco.com/warp/public/707/nrmail.html
(available to non-registered users)


Tech Note:
Connecting External Encryption Equipment (KG-194, KIV-19) to NM-4T, PA-4T+, PA-8T, and FSIP Cisco Serial Interfaces

http://www.cisco.com/warp/customer/118/cryptobug.shtml
(available to registered users)

http://www.cisco.com/warp/public/118/cryptobug.shtml
(available to non-registered users)


Field Notice:
Cisco Secure PIX Firewall: PIX-515 Ethernet Controller Issue

http://www.cisco.com/warp/customer/770/fn9871.shtml
(available to registered users)

http://www.cisco.com/warp/public/770/fn9871.shtml
(available to non-registered users)


IP Routing Protocols

Sample Configuration:
Configuring Basic MPLS Using IS-IS

http://www.cisco.com/warp/customer/105/mplsisis.html
(available to registered users)

http://www.cisco.com/warp/public/105/mplsisis.html
(available to non-registered users)


Sample Configuration:
Configuring Basic MPLS Using OSPF

http://www.cisco.com/warp/customer/105/mplsospf.html
(available to registered users)

http://www.cisco.com/warp/public/105/mplsospf.html
(available to non-registered users)


Sample Configuration:
Avoiding HSRP Instability in a Switching Environment with Various Router Platforms

http://www.cisco.com/warp/customer/619/8.html
(available to registered users)

http://www.cisco.com/warp/public/619/8.html
(available to non-registered users)


Sample Configuration:
Configuring Network Address Translation: Getting Started

http://www.cisco.com/warp/customer/556/12.html
(available to registered users)

http://www.cisco.com/warp/public/556/12.html
(available to non-registered users)


Tech Note:
Understanding OSPF Neighbor Problems

http://www.cisco.com/warp/customer/104/29.html
(available to registered users)

http://www.cisco.com/warp/public/104/29.html
(available to non-registered users)


Tech Note:
Verifying NAT Operation and Basic NAT Troubleshooting

http://www.cisco.com/warp/customer/556/13.html
(available to registered users)

http://www.cisco.com/warp/public/556/13.html
(available to non-registered users)


Tech Note:
How NAT Works

http://www.cisco.com/warp/customer/556/nat-cisco.shtml
(available to registered users)

http://www.cisco.com/warp/public/556/nat-cisco.shtml
(available to non-registered users)


Tech Note:
OSPF Not-So-Stubby Area (NSSA)

http://www.cisco.com/warp/customer/104/nssa.html
(available to registered users)

http://www.cisco.com/warp/public/104/nssa.html
(available to non-registered users)


DSL

Sample Configuration:
Configuring the Cisco 827 Router as a PPPoE Client with NAT

http://www.cisco.com/warp/customer/794/827pppoe_client.html
(available to registered users)

http://www.cisco.com/warp/public/794/827pppoe_client.html
(available to non-registered users)


Sample Configuration:
Cisco 6100 NI-1 SNMP In-Band Management

http://www.cisco.com/warp/customer/794/6100ni1_snmp.html
(available to registered users)

http://www.cisco.com/warp/public/794/6100ni1_snmp.html
(available to non-registered users)


Sample Configuration:
Configuring a Cisco SOHO77 Router with NAT, a DHCP Server, and Easy IP Using PPPoA (aal5mux ppp)

http://www.cisco.com/warp/customer/794/soho77pppoa_nat_dhcp.html
(available to registered users)

http://www.cisco.com/warp/public/794/soho77pppoa_nat_dhcp.html
(available to non-registered users)


Sample Configuration:
Configuring a Cisco SOHO77 Router Using PPPoA with CHAP and PAP

http://www.cisco.com/warp/customer/794/soho77pppoa_chap.html
(available to registered users)

http://www.cisco.com/warp/public/794/soho77pppoa_chap.html
(available to non-registered users)


Sample Configuration:
Configuring a Cisco SOHO77 Router with a Single IP Address, DHCP, PPPoA, and PPP-PAP

http://www.cisco.com/warp/customer/794/soho77dhcp_1ip.html
(available to registered users)

http://www.cisco.com/warp/public/794/soho77dhcp_1ip.html
(available to non-registered users)


Sample Configuration:
Configuring a Cisco SOHO77 Router with IP Unnumbered E0, DHCP, PPPoA, and PPP-PAP

http://www.cisco.com/warp/customer/794/soho77dhcp_unnum.html
(available to registered users)

http://www.cisco.com/warp/public/794/soho77dhcp_unnum.html
(available to non-registered users)


Sample Configuration:
Configuring a Cisco SOHO77 Router with IP Unnumbered E0, PPPoA, PPP-PAP, and Manually Configured Local LAN Devices

http://www.cisco.com/warp/customer/794/soho77unnum.html
(available to registered users)

http://www.cisco.com/warp/public/794/soho77unnum.html
(available to non-registered users)


Sample Configuration:
Configuring a Cisco SOHO77 Router Terminating on a Cisco 6400 UAC Using PPPoE

http://www.cisco.com/warp/customer/794/soho77pppoe_1.html
(available to registered users)

http://www.cisco.com/warp/public/794/soho77pppoe_1.html
(available to non-registered users)


Sample Configuration:
Configuring a Cisco SOHO77 Router as a PPPoE Client with NAT

http://www.cisco.com/warp/customer/794/soho77pppoe_client.html
(available to registered users)

http://www.cisco.com/warp/public/794/soho77pppoe_client.html
(available to non-registered users)


Sample Configuration:
Cisco SOHO77 Router With AAL5MUX IP Routing, Multiple PVCs, and Terminating on a Cisco 6400 UAC-NRP

http://www.cisco.com/warp/customer/794/soho77pvc_encap_6400.html
(available to registered users)

http://www.cisco.com/warp/public/794/soho77pvc_encap_6400.html
(available to non-registered users)


Tech Note:
Error Messages on the Cisco 6400 UAC: Descriptions and Resolutions

http://www.cisco.com/warp/customer/794/6400errormsg.html
(available to registered users)

http://www.cisco.com/warp/public/794/6400errormsg.html
(available to non-registered users)


White Paper:
PPPoA Baseline Architecture

http://www.cisco.com/warp/customer/794/pppoa_arch.html
(available to registered users)

http://www.cisco.com/warp/public/794/pppoa_arch.html
(available to non-registered users)


Cable

Sample Configuration:
Configuring NAT on Cable Modem

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

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


Tech Note:
How to Retrieve and Change the IP Address from the RateMUX™ C6920

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

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


Tech Note:
How to Upgrade the Software on the RateMUX C6920

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

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


Access Servers

Tech Note:
Evaluating Backup Interfaces, Floating Static Routes, and Dialer Watch for DDR Backup

http://www.cisco.com/warp/customer/123/backup-main.html
(available to registered users)

http://www.cisco.com/warp/public/123/backup-main.html
(available to non-registered users)


Tech Note:
Overview of General Modem and NAS Line Quality

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

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


Field Notice:
Inoperative Cisco AS5800 AC-Input Power Shelf Monitoring

http://www.cisco.com/warp/customer/770/fn11992.shtml
(available to registered users)

http://www.cisco.com/warp/public/770/fn11992.shtml
(available to non-registered users)


LAN

Tech Note:
Sample Configuration: ISL/802.1Q Trunking between Catalyst(R) 2900XL/3500XL and Cisco 2600 Routers

http://www.cisco.com/warp/customer/473/50.shtml
(available to registered users)

http://www.cisco.com/warp/public/473/50.shtml
(available to non-registered users)


Tech Note:
Troubleshooting Inter-VLAN Routing with a RSM

http://www.cisco.com/warp/customer/473/56.html
(available to registered users)

http://www.cisco.com/warp/public/473/56.html
(available to non-registered users)


Tech Note:
Understanding the Cisco Uplink Fast Feature

http://www.cisco.com/warp/customer/473/51.html
(available to registered users)

http://www.cisco.com/warp/public/473/51.html
(available to non-registered users)


Tech Note:
Troubleshooting Switch Port Problems

http://www.cisco.com/warp/customer/473/53.shtml
(available to registered users)

http://www.cisco.com/warp/public/473/53.shtml
(available to non-registered users)


Tech Note:
Understanding IPX-EIGRP

http://www.cisco.com/warp/customer/473/57.html
(available to registered users)

http://www.cisco.com/warp/public/473/57.html
(available to non-registered users)


Tech Note:
How LAN Switches Work

http://www.cisco.com/warp/customer/473/lan-switch-cisco.shtml
(available to registered users)

http://www.cisco.com/warp/public/473/lan-switch-cisco.shtml
(available to non-registered users)


Tech Note:
Troubleshooting Cisco Visual Switch Manager or Cluster Management Suite Access on the Catalyst 2900XL/3500XL Switch

http://www.cisco.com/warp/customer/473/59.html
(available to registered users)

http://www.cisco.com/warp/public/473/59.html
(available to non-registered users)


Wireless LAN

Tech Note:
Cisco WT-2750 Multipoint Broadband Wireless System Frequently Asked Questions

http://www.cisco.com/warp/customer/102/p2mp-faq.html
(available to registered users)

http://www.cisco.com/warp/public/102/p2mp-faq.html
(available to non-registered users)


Core/High-End Routers

Tech Note:
What Causes a "%RSP-3-RESTART: cbus complex"?

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

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


Tech Note:
What Causes "%RSP-3-RESTART: interface [xxx], output stuck/frozen/not transmitting" Messages?

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

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


Tech Note:
Cisco 7500 Series: Frequently Asked Questions

http://www.cisco.com/warp/customer/63/7500_faq.html
(available to registered users)

http://www.cisco.com/warp/public/63/7500_faq.html
(available to non-registered users)


Tech Note:
How to Choose a Cisco IOS Software Release

http://www.cisco.com/warp/customer/130/choosing_ios.html
(available to registered users)

http://www.cisco.com/warp/public/130/choosing_ios.html
(available to non-registered users)


Tech Note:
ROMmon Recovery for the Cisco 800 Series Router

http://www.cisco.com/warp/customer/130/recovery_c800.html
(available to registered users)

http://www.cisco.com/warp/public/130/recovery_c800.html
(available to non-registered users)


Tech Note:
ROMmon Recovery for the Cisco 1600 Series Router

http://www.cisco.com/warp/customer/130/recovery_c1600.html
(available to registered users)

http://www.cisco.com/warp/public/130/recovery_c1600.html
(available to non-registered users)


Tech Note:
ROMmon Recovery for the Cisco 1700 Series Router

http://www.cisco.com/warp/customer/130/recovery_c1700.html
(available to registered users)

http://www.cisco.com/warp/public/130/recovery_c1700.html
(available to non-registered users)


Tech Note:
ROMmon Recovery for the Cisco 2500 Series Router

http://www.cisco.com/warp/customer/130/recovery_c2500.html
(available to registered users)

http://www.cisco.com/warp/public/130/recovery_c2500.html
(available to non-registered users)


Tech Note:
ROMmon Recovery for the Cisco 2600 Series Router

http://www.cisco.com/warp/customer/130/recovery_c2600.html
(available to registered users)

http://www.cisco.com/warp/public/130/recovery_c2600.html
(available to non-registered users)


Tech Note:
ROMmon Recovery for the Cisco 3600 Series Router

http://www.cisco.com/warp/customer/130/recovery_c3600.html
(available to registered users)

http://www.cisco.com/warp/public/130/recovery_c3600.html
(available to non-registered users)


Tech Note:
ROMmon Recovery for the Cisco 4000 Series Router

http://www.cisco.com/warp/customer/130/recovery_c4000.html
(available to registered users)

http://www.cisco.com/warp/public/130/recovery_c4000.html
(available to non-registered users)


Tech Note:
ROMmon Recovery for the Cisco 4500 and 4700 Series Routers

http://www.cisco.com/warp/customer/130/recovery_4500_4700.html
(available to registered users)

http://www.cisco.com/warp/public/130/recovery_4500_4700.html
(available to non-registered users)


Tech Note:
Xmodem Console Download Procedure Using ROMmon

http://www.cisco.com/warp/customer/130/xmodem_generic.html
(available to registered users)

http://www.cisco.com/warp/public/130/xmodem_generic.html
(available to non-registered users)


Tech Note:
How to Upgrade from ROMmon Using TFTP with Boot Image

http://www.cisco.com/warp/customer/130/rommon_boot_image.html
(available to registered users)

http://www.cisco.com/warp/public/130/rommon_boot_image.html
(available to non-registered users)


WAN Switching

Tech Note:
Uploading and Downloading Cisco 8110 CLI FTP Configurations

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

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


Packet Voice and Video

Tech Note:
User Cannot Access Mailbox in uOne 4.1: "invalid user" Message

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

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


Tech Note:
Voice and Telephony Frequently Asked Questions

http://www.cisco.com/warp/customer/788/pkt-voice-general/voice_faq1.html
(available to registered users)

http://www.cisco.com/warp/public/788/pkt-voice-general/voice_faq1.html
(available to non-registered users)


Tech Note:
Supporting Variable-Length Dial Plans for Cisco CallManager Route Patterns - An Exercise in Designing a Route Pattern that Covers a National Dial Plan

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

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


Tech Note:
Configuring the IP Hosts File on a Windows 2000 Cisco CallManager Server

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

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


Tech Note:
Creating Users, Phones and Associations in Cisco CallManager

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

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


Tech Note:
Configuring the Cisco Four-Port IP Auto-Attendant Application on a Cisco CallManager Server

http://www.cisco.com/warp/customer/788/AVVID/4port_ipaa.html
(available to registered users)

http://www.cisco.com/warp/public/788/AVVID/4port_ipaa.html
(available to non-registered users)


Field Notice:
SDL Router Services Declared Dead: Cisco CallManager Will Restart

http://www.cisco.com/warp/customer/770/fn13082.shtml
(available to registered users)

http://www.cisco.com/warp/public/770/fn13082.shtml
(available to non-registered users)


Telephony

Tech Note:
Using Cisco Service Assurance Agent and Internetwork Performance Monitor to Manage Quality of Service in Voice-over-IP Networks

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

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


Tech Note:
Managing Voice Quality with Cisco Voice Manager (CVM) and Telemate

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

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


Tech Note:
The Hawaii Department of Public Policy: A Cisco AVVID Case Study

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

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


Network Management Systems (NMS)

Tech Note:
Cisco WAN Manager Frequently Asked Questions

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

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


White Paper:
Performance Management: Best Practices White Paper

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

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


IBM

Sample Configuration:
Example Configurations to Run OMPROUTE on the Mainframe

http://www.cisco.com/warp/customer/100/omproute_mainframe.html
(available to registered users)

http://www.cisco.com/warp/public/100/omproute_mainframe.html
(available to non-registered users)


Sample Configuration:
Running OROUTED to Exchange RIP Routing Updates

http://www.cisco.com/warp/customer/100/orouted_rip.html
(available to registered users)

http://www.cisco.com/warp/public/100/orouted_rip.html
(available to non-registered users)


Sample Configuration:
Configuring STUN SDLC with Local Acknowledgement over Frame Relay

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

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


Sample Configuration:
Configuring STUN SDLC over Frame Relay

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

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


Sample Configuration:
Configuring STUN Basic over Frame Relay

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

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


Sample Configuration:
Configuring BSTUN Point-to-Point

http://www.cisco.com/warp/customer/697/bstun_p2p.html
(available to registered users)

http://www.cisco.com/warp/public/697/bstun_p2p.html
(available to non-registered users)


Sample Configuration:
Configuring BSTUN Point-to-Point with Local Acknowledgement over Frame Relay

http://www.cisco.com/warp/customer/697/bstun_p2p_localack_over_fr.html
(available to registered users)

http://www.cisco.com/warp/public/697/bstun_p2p_localack_over_fr.html
(available to non-registered users)


Sample Configuration:
Configuring BSTUN Point-to-Point over Frame Relay

http://www.cisco.com/warp/customer/697/bstun_p2p_over_fr.html
(available to registered users)

http://www.cisco.com/warp/public/697/bstun_p2p_over_fr.html
(available to non-registered users)


Tech Note:
Using the Cisco 1100 Access List Debug Filter Utility on an SRB Interface

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

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


Content Delivery Devices

Tech Note:
Inaccessible Admin Pages on the Cisco CDN

http://www.cisco.com/warp/customer/117/disabling_cookies.html
(available to registered users)

http://www.cisco.com/warp/public/117/disabling_cookies.html
(available to non-registered users)


Tech Note:
How to Configure Network Boot

http://www.cisco.com/warp/customer/117/networkboot.html
(available to registered users)

http://www.cisco.com/warp/public/117/networkboot.html
(available to non-registered users)


Tech Note:
Live Broadcasts Using the Cisco CDN Solution and RealServer

http://www.cisco.com/warp/customer/117/live_cdm.html
(available to registered users)

http://www.cisco.com/warp/public/117/live_cdm.html
(available to non-registered users)


Tech Note:
How to Configure ACLs on the CSS 11000 and How to Use Them with Source Groups

http://www.cisco.com/warp/customer/117/acl.html
(available to registered users)

http://www.cisco.com/warp/public/117/acl.html
(available to non-registered users)


Tech Note:
How to Enable Web Management on the CSS 11000 Series Switches

http://www.cisco.com/warp/customer/117/web-management.html
(available to registered users)

http://www.cisco.com/warp/public/117/web-management.html
(available to non-registered users)


Field Notice:
Security Advisory: Cisco Content Services Switch Vulnerability

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

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


Customer Contact

Tech Note:
What is a "drwtsn32.log File"?

http://www.cisco.com/warp/customer/78/drwtsn32.shtml
(available to registered users)

http://www.cisco.com/warp/public/78/drwtsn32.shtml
(available to non-registered users)


Tech Note:
How to Determine Which NT Service Pack Is Installed

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

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


Tech Note:
Why Can I Not Use the "Divert On Busy" Option in a Label Node in ICM Version 4.1?

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

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


Tech Note:
Script Editor - Application Error

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

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


Tech Note:
How to Use the route Command

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

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


Tech Note:
How to Clear a SQL Server Transaction Log

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

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


Tech Note:
CMS/MAPD Troubleshooting

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

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


Tech Note:
What Is the "Pgag fail:Buffer Pool Exhausted" Error Message?

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

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


Cisco IOS Software*

Tech Note:
Cisco IOS Software Release 12.1(5)XM

http://www.cisco.com/warp/customer/620/ios_12_1_5_xm.shtml
(available to registered users)

http://www.cisco.com/warp/public/620/ios_12_1_5_xm.shtml
(available to non-registered users)


Tech Note:
Cisco IOS X-Release 12.1(5)XU

http://www.cisco.com/warp/customer/620/ios_12_1_xu.shtml
(available to registered users)

http://www.cisco.com/warp/public/620/ios_12_1_xu.shtml
(available to non-registered users)


Tech Note:
Cisco IOS Software Release 12.1(5)XV

http://www.cisco.com/warp/customer/620/ios_12_1_5_xv.shtml
(available to registered users)

http://www.cisco.com/warp/public/620/ios_12_1_5_xv.shtml
(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)


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