Having fundamental knowledge of what affects TCP, UDP, and ultimately IP itself helps you to better troubleshoot the network when things go wrong. Even though as an industry we are moving toward software-defined everything and automated solutions, there will always be a need to know what’s going on under the hood (doesn’t our industry love […]
In my networking career I haven’t had a chance to work with IPv6 much. But recently I was asked to help with IPv6 related issue and while working on it, I wasn’t able to find any easy to follow guides (or the ones that I have found weren’t working for me). I am hoping that this […]
This is a design guide for an enterprise deployment of a dual stack, routed access layer using OSPF as the routing protocol, with a fully routed ECMP core.
I’ve always advised my clients to carefully plan the implementation of IPv6. The protocol opens new attack vectors on which ne’er-do-wells can assault your infrastructure. There are countless examples I’ve seen such as service providers locking down access to routers using IPv4 transport but leaving IPv6 transport completely open. About a year ago, I stumbled […]
Part 2: The Solution Ready for part 2? Have you read part 1 w/ the facts and clues? If not, go read that now before you continue. Part 1: The Facts and Clues Review the Facts and Clues Again Last we played we were ON R1 and unable to ping the IPv6 address […]