Today was the second time I’ve done this in around a year, it’s a little uncommon to be honest, which means googling advice on how to do it, is a bit thin.

Todays walk through is also made even more different by the fact that at the branch site containing the Watchguard, its connected to a Cisco 857w router, with a Public IP address NAT’d to it due to the site having an ASDL connection.

See the below diagram I’ve sketched up in visio;

It’s actually easy enough to setup, the official documentation on the Watchguard is here, but doesnt cover it all.

Continue reading Creating VPN tunnel between Cisco ASA and Watchguard XTM →