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Newsletter
TAC Certified
Vol.4 No.5, May 2002 Unmatched Online Technical Support www.cisco.com/tac
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In This Issue:
What's Hot
Online Technical Training Opportunities
CCIE® Central

Access
Access: DSL
ATM
Content Delivery Devices
LAN
Network Management Software (NMS)
Network Security
Optical Platforms
Routers
TCP/IP: IP Routing
Voice, Telephony, and Messaging
VPN
Wireless Products

TAC Newsletter Archive
About This Newsletter

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What's Hot

LAN Technologies Top Issues - UPDATED:
Updated Top Issues Index Introduces Resources for Nine New Issues

The Cisco "LAN Technologies Top Issues" page brings you updated troubleshooting information for common issues with Cisco Catalyst products. Covering topics such as password recovery, software upgrade, configuration, and error messages, these resources give you the technical support you need for the most frequently encountered issues with LAN technologies.

The "LAN Technologies Top Issues" page now offers nine additional resources, including:

  • Hardware troubleshooting for Catalyst 2900-XL/3500-XL Series switches
  • Hardware troubleshooting for Catalyst 5500/5000/2926G/2926 Series switches
  • Hardware troubleshooting for Catalyst 6500/6000 Series switches
  • Securing networks with private VLANs and VLAN access control lists
  • Hardware troubleshooting for Catalyst 4000/4912G/2980G/2948G Series switches
  • Best practices for Catalyst 4000, 5000, and 6000 Series switch configuration and management

Visit the "LAN Technologies Top Issues" page today for the latest in Cisco Catalyst technical support:

http://www.cisco.com/tac/newsletter/050702_lan_tech_top_issues.html


Network Security Technical Tips - UPDATED:
Current and Archived Network Security Resources Reviewed Daily

The Cisco TAC Web Site's "Security Technical Tips" page offers more than 300 technical support documents, covering the full range of Cisco products and technologies related to network security. Cisco TAC experts review these resources daily to bring you the most current Web-based technical support.

Some of the recent work by Cisco TAC network security experts includes:

  • Cisco IOS® Software Firewall feature set frequently asked questions - NEW


  • Configuring IPSec between a Cisco IOS® Router and a Cisco VPN Client 3.x for Windows using Remote Access Dial-In User Service (RADIUS) for user authentication - NEW


  • Configuring CiscoSecure Authentication Control Server (ACS) for Windows NT with ACE server authentication - NEW


  • Configuring a Cisco 827 Router for Point-to-Point Protocol over Ethernet (PPPoE) with virtual private network (VPN) IP security (IPSec) Network Address Translation (NAT) overloading - NEW


  • Password recovery and authentication, authorization, and accounting (AAA) configuration recovery procedure for Cisco PIX® Firewall - UPDATED


  • How failover works on the Cisco Secure PIX® Firewall - UPDATED


  • Cisco hardware and VPN clients supporting IPSec/PPTP/L2TP - UPDATED


  • CiscoSecure ACS for Windows compatibility - UPDATED


  • Terminating IPSec tunnels on multiple Cisco Secure PIX® Firewall interfaces with extended authentication (Xauth) - UPDATED

Take advantage of the latest updates to the "Security Technical Tips" page:

http://www.cisco.com/tac/newsletter/050702_security_tech_tips.html


Cisco TAC Interactive Documents - NEW:
Selected Technical Support Documents Offer Customized Network Analysis

The Cisco TAC Web Site now includes several interactive documents featuring embedded links to the Cisco Output Interpreter tool. These documents combine the strength of step-by-step troubleshooting guidance with the Output Interpreter's customized analysis of your Cisco device.

With these interactive documents, you can read about technical issues, paste your own "show" command output into the Output Interpreter, and see precisely how the documentation relates to your situation. The Output Interpreter's analysis will point out specific configuration or performance issues and give you suggestions for resolution, speeding you through the troubleshooting process.

Interactive documents are currently available for:

  • Network security
  • LAN technologies
  • Architecture
  • Access

If you have found TAC documents useful in the past, be sure to check out these new interactive documents:

hhttp://www.cisco.com/tac/newsletter/050702_interactive_documents.html


Cisco 12000 Technical Tips - UPDATED:
Three New Resources to Help Maintain Carrier-Grade Service

The updated "Cisco 12000 Series Internet Router Technical Tips" page can help you with issues such as error messages, oversubscribed interfaces, line cards, unexpected reloads, fabric ping timeouts, and hardware troubleshooting. This technical support resource for the Cisco 12000 Series Internet Router now includes three new documents:

  • Hardware troubleshooting for the Cisco 12000 Series Internet Router
  • Troubleshooting IPC-3-NOBUFF messages on Cisco 12000, 10000, and 7500 Series routers
  • Understanding and configuring Modified Deficit Round Robin (MDRR) and Weighted Random Early Detection (WRED) on the Cisco 12000 Series Internet Router

Consult the "Cisco 12000 Series Internet Router Technical Tips" page when troubleshooting your IP backbone and high-speed provider edge networks:

http://www.cisco.com/tac/newsletter/050702_12000_tech_tips.html


Network Management Top Issues - UPDATED:
New Resources for Simple Network Management Protocol Networks

The "Network Management Top Issues" page offers online technical support for Simple Network Management Protocol (SNMP), CiscoWorks2000 product family, Resource Manager Essentials (RME), Campus Manager, Cisco WAN Manager (CWM), and other network management (NMS) products. The latest update to this page includes three documents which focus on SNMP:

  • IP SNMP causes high CPU utilization
  • How to copy configurations to and from Cisco devices using SNMP
  • SNMP: frequently asked questions

The updated "Network Management Top Issues" page also directly links to two new TAC Web Site tools that help you manage SNMP networks:

  • MIB Locator tool -- used to find which images support a given management information base (MIB)
  • SNMP Object Navigator -- used to find detailed information about object identifiers (OIDs) and in which MIBs the OIDs reside

Note: These tools are available only to registered users.

Take charge of your network with the technical support resources at the updated "Network Management Top Issues" page:

http://www.cisco.com/tac/newsletter/050702_net_manage_top_issues.html


Networkers 2002 Conferences - UPDATE:
Training Session Listings Now Available Online

Start planning your Networkers 2002 schedule by viewing the Technology Breakout Session Listing online, which includes times and summaries of the 100 Technology Breakout Sessions. These two- and four-hour sessions are taught by Cisco experts and cover every aspect of Cisco networking, from introductory to advanced levels.

After you have registered for Networkers 2002, use the Networkers Schedule Builder to sign up for your Technology Breakout Sessions.

In addition, when you plan your five-day Networkers 2002 schedule, don't forget the 11 different Power Sessions: all-day tutorials covering topical network issues. Register for these separately from the Technology Breakout Sessions.

All sessions fill up on a first-come, first-served basis. Sign up today!

This year's events take place in two locations:

  • San Diego, CA: June 24 - 28
  • Orlando, FL: July 8 - 12

Register before May 12 to receive a US$200 discount! For more information or to register for Networkers 2002, visit:

http://www.cisco.com/tac/newsletter/050702_networkers.html


Online Technical Training Opportunities

Cisco TAC Web Seminars - UPDATE:
New TAC Web Site Training Opportunities for Asia Pacific Region

The Cisco TAC Web Seminar team has expanded international offerings for the Asia Pacific region. During the months of May and June, the "Cisco TAC Web Seminar: General Overview" is being offered during AWST/ACST/AEST business hours. In addition, check out the newest on-demand seminar, the "Cisco TAC Web Seminar: General Overview" in Chinese.

These free, one-hour training seminars introduce you to a variety of troubleshooting and other technical support resources available on the Cisco TAC Web Site. Not only will you learn how to enhance your networking skills, but when you participate in a live online seminar, you can also discuss network issues with Cisco experts and industry peers in a live chat session.

Current live and on-demand seminars include:

  • "Voice, Telephony, and Messaging Issues"
  • "LAN Technologies Issues"
  • "Network Security and VPN Issues"
  • "General Router Issues"
  • "IP Routing Protocol Issues"
  • "General Overview" (English, French, Portuguese, Spanish, and Chinese)

Note: You can avoid international telephone charges with the Audio-via-Web option.

Seating is limited for the live seminars. Reserve your spot today at the Cisco TAC Web Seminars site:

http://www.cisco.com/tac/newsletter/050702_tac_web_seminars.html
(available to all users, but separate registration on this standalone site is required)


Networking Professionals Connection - NEW:
Discussion Forums, TechTalks, and "Ask the Expert" Events

Networking Professionals Connection is an interactive Web site where you and your peers can share questions, suggestions, and information about networking products and technologies. This site also offers discussion forums on networking topics such as virtual private networks (VPNs), network security, voice and video, and more.

Current offerings include:

Visit the Networking Professionals Connection to join a discussion, register for a TechTalk, and to find out about other upcoming events on networking topics:

http://www.cisco.com/tac/newsletter/050702_net_pro_connection.html


CCIE® Central

CCIE® Power Sessions in California and Florida - NEW:
Networkers Sessions Provide Expert-Level Training for CCIE Certification

Networkers 2002 events in San Diego (June 24-28) and Orlando (July 8-12) include day-long Power Sessions which cover topics leading to CCIE Communications and Services certification. Led by certified CCIE® program experts, these in-depth exam tutorials help prepare candidates for CCIE testing -- or provide excellent training for those not yet pursuing CCIE certification.

CCIE Power Sessions address the core internetworking topics required for all CCIE certifications, including:

  • IP routing
  • Switching
  • ATM
  • Frame Relay
  • IP multicast
  • Performance management
  • ISDN

To learn more about the CCIE program, visit:

http://www.cisco.com/tac/newsletter/050702_ccie_web_site.html

To register for a CCIE Power Session, visit the Networkers 2002 Web site at:

http://www.cisco.com/tac/newsletter/050702_networkers.html


Access

Tech Note:
Understanding VPDN

http://www.cisco.com/warp/customer/471/vpdn_20980.html
(available to registered users)

http://www.cisco.com/warp/public/471/vpdn_20980.html
(available to nonregistered users)


Tech Note:
Hardware Troubleshooting for AS5350 and AS5400 Series Routers

http://www.cisco.com/warp/customer/108/5400hw_ts.html
(available to registered users)

http://www.cisco.com/warp/public/108/5400hw_ts.html
(available to nonregistered users)


Access: DSL

Tech Note:
Updated Cisco 827 Configuration and Troubleshooting Guide

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

http://www.cisco.com/warp/public/794/827guide.html
(available to nonregistered users)


ATM

Tech Note:
Troubleshooting PVC Failures When Using OAM Cells and PVC Management

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

http://www.cisco.com/warp/public/121/tech-oam.html
(available to nonregistered users)


Problem Troubleshooting:
Hardware Troubleshooting for Catalyst® 8540/8510 MSRs and LightStream 1010 ATM Switch: Password Recovery

http://www.cisco.com/warp/customer/121/85TsgPwd.html
(available to registered users)

http://www.cisco.com/warp/public/121/85TsgPwd.html
(available to nonregistered users)


Problem Troubleshooting:
Hardware Troubleshooting for Catalyst® 8540/8510 MSRs and LightStream 1010 ATM Switch: ATM Switch Processor (ASP) Power-On Diagnostics

http://www.cisco.com/warp/customer/121/85TsgHng.html
(available to registered users)

http://www.cisco.com/warp/public/121/85TsgHng.html
(available to nonregistered users)


Content Delivery Devices

Configuration Example:
How to Import a Microsoft IIS 4.0 Certificate and Key into the Secure Content Accelerator Configuration Manager

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

http://www.cisco.com/warp/public/117/sca_cert_import.html
(available to nonregistered users)


LAN

Tech Note:
Recovering a Catalyst® 4000 Layer 3 Module (WS-X4232-L3) from a Corrupted or Missing Image, or from ROMmon Mode

http://www.cisco.com/warp/customer/473/130.html
(available to registered users)

http://www.cisco.com/warp/public/473/130.html
(available to nonregistered users)


Tech Note:
QoS Policing and Marking with Catalyst® 4000 Supervisor Engine 3

http://www.cisco.com/warp/customer/473/134.html
(available to registered users)

http://www.cisco.com/warp/public/473/134.html
(available to nonregistered users)


Password Recovery:
Password Recovery Procedure for EtherSwitch 10/100, 1200, 1220, 1400, 1420 FastSwitch 10/100, 2100, 2800 and FastHub 100+, 300

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

http://www.cisco.com/warp/public/474/pswdrec_etherswitch.html
(available to nonregistered users)


Network Management Software (NMS)

Tech Note:
Troubleshooting TFTP Problems on Resource Manager Essentials

http://www.cisco.com/warp/customer/477/RME/tftp-18246.htm
(available to registered users)

http://www.cisco.com/warp/public/477/RME/tftp-18246.htm
(available to nonregistered users)


Tech Note:
Java/Java Plug-in Issues with CiscoWorks 2000

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

http://www.cisco.com/warp/public/477/CWSI/javaPluginNew.html
(available to nonregistered users)


Password Recovery:
How to Reset the CEMF Administrator Password

http://www.cisco.com/kobayashi/technotes/CEMF/knowledgebase/CEMFpasswordrecovery.html
(available to registered users only)


Network Security

Tech Note:
Configuring Cisco Secure ACS for Windows NT with ACE Server Authentication

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

http://www.cisco.com/warp/public/480/csntsdi.html
(available to nonregistered users)


Tech Note:
Choosing and Upgrading Software for Cisco IOS® Software Firewall

http://www.cisco.com/warp/customer/110/iosfw-choose.shtml
(available to registered users)

http://www.cisco.com/warp/public/110/iosfw-choose.shtml
(available to nonregistered users)


Q and As:
Cisco IOS® Software Firewall Feature Set Frequently Asked Questions

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

http://www.cisco.com/warp/public/110/iosfwfaq.html
(available to nonregistered users)


Optical Platforms

Configuration Example:
Setting the Transponder Module Line Direction

http://www.cisco.com/warp/customer/127/ONS_15800/trans_19283.html
(available to registered users)

http://www.cisco.com/warp/public/127/ONS_15800/trans_19283.html
(available to nonregistered users)


Configuration Example:
Configuring the RXT Channel Number and Line Direction on an ONS 1580x

http://www.cisco.com/warp/customer/127/ONS_15800/rxt_20240.html
(available to registered users)

http://www.cisco.com/warp/public/127/ONS_15800/rxt_20240.html
(available to nonregistered users)


Tech Note:
Automatic Laser Shutdown on the Metro 1500

http://www.cisco.com/warp/customer/127/als_19343.html
(available to registered users)

http://www.cisco.com/warp/public/127/als_19343.html
(available to nonregistered users)


Tech Note:
Adding and Dropping Nodes in a BLSR Ring

http://www.cisco.com/warp/customer/127/ONS_15454/blsr_20560.html
(available to registered users)

http://www.cisco.com/warp/public/127/ONS_15454/blsr_20560.html
(available to nonregistered users)


Tech Note:
Creating and Maintaining ONS 15454 Protection Groups

http://www.cisco.com/warp/customer/127/ONS_15454/pg20694.html
(available to registered users)

http://www.cisco.com/warp/public/127/ONS_15454/pg20694.html
(available to nonregistered users)


Routers

Tech Note:
Hardware Troubleshooting for the Cisco 7400 Series Router

http://www.cisco.com/warp/customer/108/hwts_7400_18676.html
(available to registered users)

http://www.cisco.com/warp/public/108/hwts_7400_18676.html
(available to nonregistered users)


TCP/IP: IP Routing

Tech Note:
Comparing Traffic Policing and Traffic Shaping for Bandwidth Limiting

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

http://www.cisco.com/warp/public/105/policevsshape.html
(available to nonregistered users)


Tech Note:
Troubleshooting When BGP Routes Are Not Advertised

http://www.cisco.com/warp/customer/459/bgp_noad.html
(available to registered users)

http://www.cisco.com/warp/public/459/bgp_noad.html
(available to nonregistered users)


Tech Note:
Quality of Service Order of Operation

http://www.cisco.com/warp/customer/105/qos_orderofop_3.html
(available to registered users)

http://www.cisco.com/warp/public/105/qos_orderofop_3.html
(available to nonregistered users)


Tech Note:
Indirectly Redistributing Directly Connected Networks

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

http://www.cisco.com/warp/public/105/redist.html#connected
(available to nonregistered users)


Tech Note:
Troubleshooting BGP

http://www.cisco.com/warp/customer/459/bgp_trouble_main.html
(available to registered users)

http://www.cisco.com/warp/public/459/bgp_trouble_main.html
(available to nonregistered users)


Tech Note:
Troubleshooting Flapping BGP Routes (Recursive Routing Failure)

http://www.cisco.com/warp/customer/459/bgp-rec-routing.html
(available to registered users)

http://www.cisco.com/warp/public/459/bgp-rec-routing.html
(available to nonregistered users)


Tech Note:
Troubleshooting EIGRP

http://www.cisco.com/warp/customer/103/trouble_eigrp.html
(available to registered users)

http://www.cisco.com/warp/public/103/trouble_eigrp.html
(available to nonregistered users)


Voice, Telephony, and Messaging

Configuration Example:
Cisco ATA 186 Basic Configuration

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

http://www.cisco.com/warp/public/788/voip/ata_basicconfig.html
(available to nonregistered users)


Configuration Example:
Configuring and Troubleshooting an ATA 186 with a Cisco IOS® Software Gateway

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

http://www.cisco.com/warp/public/788/voip/ata_gateway.html
(available to nonregistered users)


Configuration Example:
Configuring and Troubleshooting an ATA 186 with Cisco IOS® Software Gatekeepers

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

http://www.cisco.com/warp/public/788/voip/ata_gatekeeper.html
(available to nonregistered users)


How To:
Creating Additional Extensions in Cisco Unity™ to Transfer Calls Directly to a Mailbox

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

http://www.cisco.com/warp/public/788/AVVID/addl_ext_unity_mailbox.html
(available to nonregistered users)


How To:
Cisco Unity™ 2.4.6: Voice Mail-Only Account for Unified Messaging Exchange Site

http://www.cisco.com/warp/customer/788/AVVID/VM_only_Unity246.html
(available to registered users)

http://www.cisco.com/warp/public/788/AVVID/VM_only_Unity246.html
(available to nonregistered users)


Problem and Solution:
Unable to Import Exchange Subscribers into Cisco Unity™

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

http://www.cisco.com/warp/public/788/AVVID/exch_subscr_unity.html
(available to nonregistered users)


Problem and Solution:
Setting Up Intercluster Trunks with Three or More Cisco CallManagers

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

http://www.cisco.com/warp/public/788/AVVID/intercluster.html
(available to nonregistered users)


Problem and Solution:
Error When Trying to Access CRA Appadmin Pages

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

http://www.cisco.com/warp/public/788/AVVID/appadmin_error.html
(available to nonregistered users)


Tech Note:
Troubleshooting Unrecognized Voice Interface Cards on Cisco 1750 and 1751 Routers

http://www.cisco.com/warp/customer/788/products/1750-vic-issues.html
(available to registered users)

http://www.cisco.com/warp/public/788/products/1750-vic-issues.html
(available to nonregistered users)


Tech Note:
Cisco Unity™: Subscriber Logon in Failover Systems

http://www.cisco.com/warp/customer/788/AVVID/subscriber-logon-failover-sys.html
(available to registered users)

http://www.cisco.com/warp/public/788/AVVID/subscriber-logon-failover-sys.html
(available to nonregistered users)


Tech Note:
SLIPS on VWIC E1/T1 Controller in Access Gateway Module in Catalyst® 4000

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

http://www.cisco.com/warp/public/788/AVVID/slips_vwic_agm.html
(available to nonregistered users)


Tech Note:
Cisco Unity™: Marking Voice Messages as Read on Hang-up

http://www.cisco.com/warp/customer/788/AVVID/mark-messages-read.html
(available to registered users)

http://www.cisco.com/warp/public/788/AVVID/mark-messages-read.html
(available to nonregistered users)


Tech Note:
Troubleshooting the Cisco Unity™ MWI Exchange Component

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

http://www.cisco.com/warp/public/788/AVVID/Unity_MWI_Exchange.html
(available to nonregistered users)


Tech Note:
Troubleshooting IP AutoAttendant

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

http://www.cisco.com/warp/public/788/AVVID/ipaa_ts.html
(available to nonregistered users)


White Paper:
Understanding the Cisco ICS 7750 System Software Release 2.0

http://www.cisco.com/warp/customer/788/products/ICS7750_20rel.html
(available to registered users)

http://www.cisco.com/warp/public/788/products/ICS7750_20rel.html
(available to nonregistered users)


VPN

Configuration Example:
Configuring a Cisco 827 for PPPoE with VPN IPSec NAT Overloading

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

http://www.cisco.com/warp/public/471/vpn_pppoe.html
(available to nonregistered users)


Configuration Example:
How to Populate Dynamic Routes Using Reverse Route Injection

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

http://www.cisco.com/warp/public/471/rri.html
(available to nonregistered users)


Wireless Products

Tech Note:
Cisco Aironet® 350 Series Power Options

http://www.cisco.com/warp/customer/102/wlan/350power-21480.html
(available to registered users)

http://www.cisco.com/warp/public/102/wlan/350power-21480.html
(available to nonregistered users)


TAC Newsletter Archive

To view past issues of the Cisco TAC Newsletter, please visit:

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


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