DHCP Based Security Part 3: Dynamic ARP Inspection

This post closes out a 3 post series on DHCP based security technologies for the Cat3560 (among others) switching platform.  We first took a look at DHCP Snooping, and then we built upon that with IP Source Guard.  Finally, we've come to Dynamic ARP Inspection, or just DAI.

DHCP Based Security Part 2: IP Source Guard

This is post two in a three post series on DHCP based switching security technologies.  Previously I looked at DHCP Snooping, and now I'm going to look at IP Source Guard.

DHCP Based Security Part 1: DHCP Snooping

There's 3 related switching security technologies for which I've had draft posts sitting around for some time now. I'm finally getting around to publishing them as I study away for my second lab attempt. I know it's the silly little technologies like these ones that can show up on a Lab and cause grief, so hopefully I don't forget all this come Jan 13th.

The first one we're going to look at is DHCP Snooping. 

Lock-and-Key Security (Or how I learned to love the Dynamic ACL)

After a great February of blogs (for me anyway) I didn't manage to get a single post out in March.  Oddly enough March turned out to be a new record for pageviews...  Weird eh?

At any rate, I did do up another guest blog post for Steve on Networking-Forum.com on Lock-and-Key security..  If you're interested I encourage you to head on over and check it out.


http://www.networking-forum.com/blog/?p=2108

I hope you enjoy it.

Shared IPsec with DMVPN and VRF-Lite

I did up a blog post for Steve over at Networking-Forum.com on a funky setup using Shared IPsec.  Here's the link for your reading pleasure.  http://www.networking-forum.com/blog/?p=1110