1.1.a (i) Managing MAC address table

Starting at the bottom with this one... Well not all the way, but close. Mac Addresses are some of the most basic addresses that you will encounter and therefore need to understand when working...

Two Methods of MPLS Interface Configuration within OSPF

Within all of the practice labs I have worked through for the CCIE Lab exam and in most real world applications I have seen, MPLS networks are run on top of (or within) an...

Cisco Certification: Don’t Focus on the Exam Version

Whenever a Cisco exam version changes, there’s always a lot of chatter about it on the web. The CCNA exams are no exception. One comment I see often goes like this: ” I hear Cisco...

DMVPN in a VRF Environment

In the lab, I have been introducing vrf environments into everything that I do. MPLS was the tip of the iceberg and then from there, I started tonight going over DMVPN in a vrf...

Configuring DMVPN Encryption

The last lab that I did was "Basic: Cisco DMVPN Lab". This was a configuration of three routers in a DMVPN setup while they all passed through a central, internet emulating, router. Overall it...

Troubleshooting Basic BGP Path Issues

In everything I've been working on lately, a lot of it has revolved around BGP. Most of this has come from my CCIE studies. In practice labs and scenarios something I've become accustomed to...

Guide to DHCP Snooping

DHCP snooping is a security feature that you will surely run into in while studying for your Cisco exams or while working in an enterprise environment perhaps. It first off helps ensure that you...