Bring up a VPN Tunnel From the ASA
Oct08

Bring up a VPN Tunnel From the ASA

KB ID 0001604 Problem A colleague was doing a firewall migration yesterday and I offered to sit in, in case he had any problems, one of the tasks was a VPN tunnel getting migrated, this is usually painless, (if you have control of both ends!) But in this case we didn’t, and it’s usually the case, when there’s VPN problems, the people at the {ahem} ‘less experienced,’ end of the tunnel tend to blame the...

Read More
EVE-NG on VMware ESX Strange ARP Problems?
Oct01

EVE-NG on VMware ESX Strange ARP Problems?

KB ID 0001601 Problem I use EVE-NG a lot, it’s an awesome tool. Also I’m lucky enough to have my own ESX servers, so that’s where it lives. I’ve noticed this problem before, but I’ve either given up, and done something else, or it’s manifested itself in an ‘odd’ way that I can work around. If you’re new to connecting EVE-NG to a live network you might want to read the following...

Read More
EVE-NG (VMware) Connecting to the Internet
May09

EVE-NG (VMware) Connecting to the Internet

KB ID 0001432 Problem I did an article a while back on doing this with UNL, so I thought I’d revisit it today for EVE-NG. I really like EVE-NG, for proof of concept work, testing, and just learning new products I cant think of any product better. But what if you want to connect your labs to the outside world?  Solution In all honesty a lot of this article you can skip, I’m just showing you what’s going on down at the...

Read More
ENE-NG and GNS3 – Speed and Duplex Mismatch
Nov17

ENE-NG and GNS3 – Speed and Duplex Mismatch

KB ID 0000983 Dtd 10/08/14 Problem I don’t know why this happens sometimes with GNS3, and EVE-NG but occasionally I will get a connection between two devices that constantly complains. %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on {interface-name} (not half duplex), with {host-name} {interface-name} (half duplex). For the uninitiated, a speed/duplex mismatch, usually happens when both ends of the link are set...

Read More