Cisco Packet Tracer 5.1 Download

This is the best way you can practice and familiarize yourself with Cisco routers and IOS for people wanting to get started with Cisco products. I have used this tool in the past and found it to be very helpful. The intuitive graphics shows you the packet flow for the network you configure from scratch. [...]

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Configuring DHCP Snooping on a Catalyst 6500 IOS

To be posted 07/31. The proper way to configure this!

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EIGRP Formula: Calculation Method for Composite Metric

There have been many posts on the Internet explaining how EIGRP gets its composite metric. I’ve been running around searching for information and it seems that there are NOT that many people who seem to post this info. Here it is, the real calculation method for EIGRP metrics.
Everyone says EIGRP metric is based off bandwidth [...]

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MPLS with WCCP do not mix!

Problem:
So I was working on implementing WCCP redirection for networks to get TCP accelerated between two data centers and I ran into a problem. The problem was that subnets behind the core switches were not getting WCCP redirected into the WAAS units. So I wonder why? It’s matching the redirect-list ACL and shows up in [...]

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