Networking tutorials

Cisco IOS DST Daylight Savings Time Workaround

Contributed by abanks on March 13, 2007 under Cisco router

Daylights Savings Time workaround for Cisco IOS devices. Of course, updating the IOS to a DST-corrected version will eliminate the need for this fix, but…

Comments
 

Cisco PIX Logging: Debugging to Emergency

Contributed by aaronm on February 9, 2007 under Cisco firewall

This article is an outline of how to set up logging on your PIX, viewable to a syslog or through the show log statement. This information is targeted toward the more recent versions of PIX IOS, the older versions run along the same concept but have some different commands.

Comments
 

The dark secrets of loopback addresses

Contributed by aaronm on January 22, 2007 under Cisco networking

Just some info on loopback virtual interfaces and their uses.

Comments
 

Cisco HSRP (like VRRP) – Redundant gateway router configuration

Contributed by abanks on December 17, 2006 under Cisco router

You’ve got two Cisco routers, and two links to a remote site. How do you make your hosts use the backup when needed? One method is HSRP.

Comments
 

How to (more) safely run debugs on Cisco routers

Contributed by abanks on December 15, 2006 under Cisco router

Running debug commands can bring a busy router to a crawl. Not sending the output to the console can help. This tech-recipe describes turning off console debugging output and techniques for viewing debug information in a router-friendly way.

Comments
 

How To Terminate a Cable (CAT5e and CAT6)

Contributed by shamanstears on December 4, 2006 under Networking

Hold a cable locking tab down with the contacts facing you and connector pointing away from you. The contacts are numbered 1-8 from left to right.
There are two different methods that can be used to terminate the cable:

Comments
 

Updates for IP Telephony (Cisco CallManager, CallManager Express)

Contributed by abanks on November 17, 2006 under Cisco call manager

A couple of new commands to make life easier with IP Telephony using Cisco CallManager and CallManager Express.

Comments
 

Cisco switch: 802.1q trunk to router, aka router-on-a-stick

Contributed by abanks on under Cisco switch

Connect a Cisco switch and router via 802.1q trunking. This configuration is known as a router-on-a-stick.

Comments