Unicast Reverse Path forwarding (uRPF)
We talked a little bit about reverse path forwarding when we were dealing with multicast. The RPF check was used when forwarding some of the traffic to prevent loops. unicast… Read more »
Spanning Tree Protection review
This topic seems to be coming up on the practice tests pretty frequently so it’s probably worth a quick review. There are 4 types of spanning tree protection mechanisms that… Read more »
Working with IPv6 – Addressing basics
In my opinion, IPv6 is a totally different beast than IPv4 is. Not only are the addresses different, but there are a whole slew of different ways to use and… Read more »
Using IOS Zone based Firewall (ZFW)
Admittedly, the zone based firewall is something that I’ve never actually implemented. So this was a little bit ‘learn as I go’ process. The zone based firewall feature of IOS… Read more »
Standard and Extended ACLs
It seems odd that this would even really be a concept I would be covering for IE studies. However, there are some interesting nuances in access-lists that I still mess… Read more »
Understanding LISP
Last night I was reviewing some of the LISP posts I had written earlier and realized that I never summed up all of the links in one post so that… Read more »