New Reader Tip - UPDATE:
Useful Precaution when Making Changes to a Device
Note: All tips published in the Cisco Technical Services Newsletter are reviewed by Cisco technical support engineers; however, the Cisco Technical Services Newsletter and Cisco cannot guarantee the accuracy or completeness of these tips.
Before making a change to a device that might cause problems or where you might lose your connectivity, especially if you are not near that device, I like to:
- Save the working configuration via a "copy run start" command
- Issue "reload in 5"
- Make my change
- Verify change is working alright
- If changes are correct, do "reload cancel" to cancel the reload
Five minutes might be too long or short for you. I change the minutes depending on the situation.
If the changes don't work and you are kicked out of the router, it will reload on its own after the timer expires. After the device reloads it will come back up with the original configuration.
Note: Avoid/Resist distractions when doing this so the timer doesn't expire if the changes you make are working alright.
-Troy Rader, University of Oklahoma, Norman, Oklahoma, USA
To learn more about Reader Tip submission and guidelines, visit the Reader Tip submission page at:
www.cisco.com/warp/public/437/readertips/index.html
If your Tip is selected for publication, you will receive a complimentary Cisco polo t-shirt from the Cisco Technical Services Newsletter staff.
Cisco Quick Learning Modules - UPDATE:
ASA Security Quick Learning Modules Are Now Available
Cisco Quick Learning Modules (QLMs) are free e-learning training components that provide you with a quick and easy way to learn how to complete a specific configuration task on Cisco products.
You can view and download the following new QLMs for your convenience:
- Utilizing the Packet Tracer Feature on the Cisco ASA -- Learn how to use the Packet Tracer feature of the Cisco ASA to trace a packet during its life span in the ASA, which will enable proactive verification of an applied policy and aid easy troubleshooting on network issues.
- Securing VoIP Applications Using the Enhanced Features of the Cisco ASA -- Learn how to secure VoIP applications using the enhanced inspection features of the SIP, SCCP, H.323, MGCP, and RTP protocols provided by the Cisco ASA.
- Configuring the L2TP/IPSEC Feature on the Cisco ASA -- Learn how to configure the L2TP/IPSEC feature on the Cisco ASA.
- Configuring the Easy VPN Hardware Client Feature on the Cisco ASA 5505 -- Identify functionalities of the Cisco ASA 5505 as an Easy VPN Hardware Client and learn how to configure the same via the Cisco ASDM.
- Configuring Basic Features on the Cisco ASA 5505 -- Learn how to set up different VLANs in the Cisco ASA 5505. You will also learn how to configure the various features of the Cisco ASA 5505 such as dynamic DNS and DHCP relay.
For more information, you can visit the Configuring ASA and PIX Security Appliances Training Resources page at:
www.cisco.com/web/learning/le31/le29/configuring_asa_pix_security_appliances.html
Networkers at Cisco Live 2007 - UPDATE:
Anaheim to Host Conference in July
Mark your calendar for Networkers at Cisco Live 2007, to be held July 22-26 in Anaheim, California. Ignite Innovation and join thousands of peers, Cisco engineers and executives, and strategic partners for technical training, onsite testing, access to the latest solutions, and unparalleled industry networking opportunities.
Some of this year's events include:
- More than 200 Technical Sessions
- Keynote by John Chambers
- Full-Day Techtorials
- Hands-On Labs
- Case Studies
- World of Solutions Expo
- IT Insights Forum -- business solutions track for managers of IT Organizations (new)
Early Bird registration opens April 3, 2007. Sign up today to receive e-mail messages about important registration dates and discounts at:
www.cisco.com/offer/networkers2007/141415_8
Cisco Marketplace - UPDATE:
Get the Product Documentation You Need Now
"What's New in Cisco Product Documentation" is an online publication that provides information about the latest documentation releases for Cisco products. Updated monthly, this online publication is organized by product category to direct you quickly to the documentation for your products.
In addition to many new and revised documents, highlights of the March release include documentation for the following:
- Cisco MDS 9124e Fabric Switch for HP c-Class BladeSystem Installation Instructions
You can view the latest release of "What's New in Cisco Product Documentation" at the new location:
www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html
Visit the Product Documentation Store today at:
www.cisco.com/go/marketplace/WN0307
(available only to registered users)
Networking Professionals Connection - UPDATE:
Upcoming "Ask the Expert" Events and TechTalks
Networking Professionals Connection is an interactive Website where you can discuss Cisco networking products and technologies with Cisco experts and networking professionals around the world.
Upcoming events on Networking Professionals Connection include:
- "Ask the Expert" events, which allow you to discuss specific networking issues online with Cisco engineers:
www.cisco.com/go/AsktheExpert
- "Troubleshooting Intrusion Prevention Systems," now through March 23
- "Troubleshooting ASA/PIX Firewalls," now through March 23
- "High Availability in Campus Networks," March 26 through April 6
- "CCIE Security," March 26 through April 6
Note: "Ask the Expert" events are subject to rescheduling. Please refer to the URL above for the most current schedule.
- TechTalks are online Webcasts that focus on particular technology subjects. You can view the latest event schedule, register to attend a live session, and view archived presentations on the Web any time:
www.cisco.com/go/techtalk
To attend an event or participate in a discussion forum, visit Networking Professionals Connection at:
www.cisco.com/discuss/networking
Broadband Cable
Tech Note:
Cable Fiber Node Best Practices for the uBR10k
www.cisco.com/en/US/tech/tk86/tk804/technologies_tech_note09186a00807f32fd.shtml
LAN Switching
Configuration Example:
All Transparent VTP Domain to Server-Client VTP Domain Migration
www.cisco.com/en/US/tech/tk389/tk689/technologies_configuration_example09186a00807d5d42.shtml
Cisco TAC Case Collection Solution:
How to Prevent the Generation of Inaccurate Timestamps or System Log Messages Caused by the New DST Rules, Outlined in the Energy Policy Act of 2005, in Catalyst Switches That Run Cisco IOS and CatOS System Software
www.ciscotaccc.com/lanswitching/showcase?case=K34435519
Security and VPN
Configuration Example:
IPsec between a Static IOS Router and a Dynamic PIX/ASA 7.x with NAT
www.cisco.com/en/US/products/hw/vpndevc/ps2030/products_configuration_example09186a00807ea936.shtml
Configuration Example:
PIX/ASA 7.x: Enable FTP Services
www.cisco.com/en/US/products/ps6120/products_configuration_example09186a00807ee585.shtml
Configuration Example:
PIX/ASA 7.x Active/Standby Failover
www.cisco.com/en/US/products/hw/vpndevc/ps2030/products_configuration_example09186a00807dac5f.shtml
Tech Note:
PIX/ASA 7.x: Pre-Shared Key Recovery
www.cisco.com/en/US/products/hw/vpndevc/ps2030/products_tech_note09186a00807f2d37.shtml
Tech Note:
ASA Security Appliance "Disk0" Error Message
www.cisco.com/en/US/products/ps6120/products_tech_note09186a00807ea93d.shtml
Tech Note:
Most Common L2L and Remote Access IPsec VPN Troubleshooting Solutions
www.cisco.com/en/US/products/ps6120/products_tech_note09186a00807e0aca.shtml
Cisco TAC Case Collection Solution:
Cisco Secure ACS Is Unable to Auto-Adjust to the New DST Rules for 2007
www.ciscotaccc.com/security/showcase?case=K18144403
Voice and Unified Communications
Configuration Example:
CallManager: Intercom Feature
www.cisco.com/en/US/products/sw/voicesw/ps556/products_configuration_example09186a00807f3301.shtml
Configuration Example:
Unity Subscriber as an Operator
www.cisco.com/en/US/products/sw/voicesw/ps2237/products_configuration_example09186a00807ed1b2.shtml
Configuration Example:
VG248 Port Configuration to Light the Caller ID MWI
www.cisco.com/en/US/products/hw/gatecont/ps2250/products_configuration_example09186a00807d5080.shtml
Tech Note:
Third Party Products Support for Voice Applications
www.cisco.com/en/US/products/sw/voicesw/ps556/products_tech_note09186a00807f4093.shtml
Tech Note:
CallManager 4.x: Troubleshooting High CPU Utilization
www.cisco.com/en/US/products/sw/voicesw/ps556/products_tech_note09186a00807f32e9.shtml
Tech Note:
CallManager 4.x to 5.0 Upgrade Fails due to DMA Error
www.cisco.com/en/US/products/sw/voicesw/ps556/products_tech_note09186a00807f3307.shtml
Tech Note:
Cisco Unified MeetingPlace Web Conferencing: Customize Page Styles
www.cisco.com/en/US/products/sw/ps5664/ps5669/products_tech_note09186a00807ed969.shtml
Tech Note:
SSO Configuration for the Cisco Unified MeetingPlace Web Conferencing System
www.cisco.com/en/US/products/sw/ps5664/ps5669/products_tech_note09186a00807ec20d.shtml
Tech Note:
Cisco Unified MeetingPlace Web Conferencing System: Require Client Certificates in IIS
www.cisco.com/en/US/products/sw/ps5664/ps5669/products_tech_note09186a00807ed970.shtml
Tech Note:
Cisco CallManager BARS Issues Troubleshooting
www.cisco.com/en/US/products/sw/voicesw/ps556/products_tech_note09186a00807ee59d.shtml
Cisco TAC Case Collection Solution:
When Running Cisco Unity Installation and Configuration Assistant (CUICA), during the Cisco Unity Installation, the "While trying to install the sentinel system driver, Windows Installer returned a failure code: 2, error installing sentinel system driver" Error Message Displays
www.ciscotaccc.com/voice/showcase?case=K09352062
Wireless
Configuration Example:
Authentication on Wireless LAN Controllers
www.cisco.com/en/US/tech/tk722/tk809/technologies_configuration_example09186a00807f42e9.shtml
Configuration Example:
QoS on Wireless LAN Controllers and Lightweight APs
www.cisco.com/en/US/tech/tk722/tk809/technologies_configuration_example09186a00807e9717.shtml
Configuration Example:
Client VPN over Wireless LAN with WLC
www.cisco.com/en/US/tech/tk722/tk809/technologies_configuration_example09186a00807e0b6a.shtml
Tech Note:
Omni Antenna vs. Directional Antenna
www.cisco.com/en/US/tech/tk722/tk809/technologies_tech_note09186a00807f34d3.shtml
Tech Note:
REAP Deployment Guide at the Branch Office
www.cisco.com/en/US/tech/tk722/tk809/technologies_tech_note09186a00807d4d32.shtml
Password Recovery:
Location Appliance
www.cisco.com/en/US/products/ps6386/products_password_recovery09186a00807f42f9.shtml
Cisco TAC Case Collection Solution:
How to Configure the Cisco AP as a Workgroup Bridge
www.ciscotaccc.com/wireless/showcase?case=K30400624
U.S. Daylight Savings Time 2007
Field Notices:
New Documents for Security and VPN, Voice and Unified Communications, WAN, and Wireless Technologies
www.cisco.com/public/news_training/whats_hot.shtml
Broadband Cable
Field Notice:
Cisco RF Switch Firmware Version 3.60 - Mandatory Upgrade
www.cisco.com/en/US/products/hw/cable/ps2209/products_field_notice09186a00807f3273.shtml
Field Notice:
Bad Pointer in NVRAM
www.cisco.com/en/US/products/hw/cable/ps2209/products_field_notice09186a00807ee4b9.shtml
Cisco IOS
Security Advisory:
Multiple IOS IPS Vulnerabilities
www.cisco.com/en/US/products/products_security_advisory09186a00807e0a5b.shtml
Cisco TAC Case Collection Solution:
How to Configure Logging in Cisco IOS
www.ciscotaccc.com/core/showcase?case=K90552812
LAN Switching
Field Notice:
ACE Versions A1.3 and A1.3B Purchased Prior to February 13, 2007 Have Invalid PAK Information
www.cisco.com/en/US/products/hw/modules/ps2706/products_field_notice09186a00807ed706.shtml
Optical
Field Notice:
15454-SA-HD and 15454-SA-HD-DDR Shelf Assemblies Have Incorrect Power Filter Capacitor
www.cisco.com/en/US/products/hw/optical/ps2006/products_field_notice09186a00807d4148.shtml
Security and VPN
Field Notice:
CIVS-EDTFM-230= - CSIBU 230VAC External Power Supply Issue
www.cisco.com/en/US/products/ps6936/products_field_notice09186a00807ddde3.shtml
Field Notice:
CTA Software Versions 1.0.55, 2.0.0.30, and 2.0.1.14 Have Been Removed from CCO due to PSIRT - Immediate Software Upgrade Is Recommended
www.cisco.com/en/US/products/ps5923/products_field_notice09186a00807f2f47.shtml
Field Notice:
Change to the ASA Base Product ID Has Caused Confusion
www.cisco.com/en/US/products/ps6120/products_field_notice09186a00807dbea6.shtml
Security Advisory:
Cisco Catalyst 6000, 6500 Series, and Cisco 7600 Series NAM (Network Analysis Module) Vulnerability
www.cisco.com/en/US/products/products_security_advisory09186a00807f4139.shtml
Security Advisory:
Cisco Catalyst 6000, 6500 Series, and Cisco 7600 Series MPLS Packet Vulnerability
www.cisco.com/en/US/products/products_security_advisory09186a00807f413e.shtml
Security Advisory:
Multiple Vulnerabilities in 802.1X Supplicant
www.cisco.com/en/US/products/products_security_advisory09186a00807ebe6e.shtml
Security Advisory:
Cisco Unified IP Conference Station and IP Phone Vulnerabilities
www.cisco.com/en/US/products/products_security_advisory09186a00807ea93b.shtml
Security Advisory:
Multiple Vulnerabilities in Firewall Services Module
www.cisco.com/en/US/products/products_security_advisory09186a00807e2481.shtml
Security Advisory:
Multiple Vulnerabilities in Cisco PIX and ASA Appliances
www.cisco.com/en/US/products/products_security_advisory09186a00807e2484.shtml
Security Advisory:
SIP Packets Reload IOS Devices with Support for SIP
www.cisco.com/en/US/products/products_security_advisory09186a00807d3715.shtml
Voice and Unified Communications
Field Notice:
CallManager 5.1(1a) and IBM Servers (Software Only) Ordered through IBM's Xcellerator Tool Cause Installation Failures
www.cisco.com/en/US/products/sw/voicesw/ps556/products_field_notice09186a00807f19cb.shtml
Field Notice:
Cisco Enterprise and Hosted Contact Center Products Notice for Microsoft February 2007 Security Updates
www.cisco.com/en/US/products/sw/custcosw/ps1973/products_field_notice09186a00807ea9bf.shtml
Field Notice:
CallManager 5.1(1a) and MCS-7835-H2 or MCS-7845-H2 Servers Cause Installation Failures
www.cisco.com/en/US/products/sw/voicesw/ps556/products_field_notice09186a00807ec5e1.shtml
Field Notice:
Best Practice for CP-7920 Cleaning and Transporting
www.cisco.com/en/US/products/hw/phones/ps379/products_field_notice09186a00807e95ee.shtml
Field Notice:
Sun1280 114526-09 (5.20.3) Firmware Patch for Daylight Saving Time (DST) Change for the BTS10200
www.cisco.com/en/US/products/hw/vcallcon/ps531/products_field_notice09186a00807e96d2.shtml
Field Notice:
CallManager 5.1(1a) and MCS-7835-I2 Servers - BIOS Causes Installation Failures
www.cisco.com/en/US/products/sw/voicesw/ps556/products_field_notice09186a00807e97f8.shtml
If you would like to view Technical Tips that have recently received major updates, visit the Document Updates page at:
www.cisco.com/public/news_training/tech_tips.html
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