IPSec questions setting up to connect to a Linksys VPN router
I've read quite a few threads on this already, but unfortunately I still need a little more assistance.
I'm setting up an IPSec tunnel between a main office and a branch office.(I read a post like this already, but it didn't help me too much)
First off, I'm completely new to Linux IPSec, I've been using Linux for awhile now, I'm not a complete beginner, though.
At our main office we have our Linux firewall running shorewall which will I hope can also double as our IPSec gateway.
At our remote office we have a Linksys VPN router. We need to have the linksys router and the linux firewall be able to communicate through IPSec for one of our workers that moved. I have been reading the Shorewall documentation, but it really hasn't helped me too much.
I'm using Debian Etch on the Linux Firewall, I can't remember the kernel version though.
Where would anyone suggest I start reading to get this figured out?
Thanks in advance.