At home, I have a Linksys BEFVP41 router. I am using a NetGear ProSave VPN client on my laptop to create an end-to-end VPN connection between my laptop and a Netgear VPN router located elsewhere. So my Linksys router merely needs to allow IPSEC passthrough. At home, my laptop is not set up in any special way and the router performs NAT for every device on the home network. I can connect to the remote VPN router with no problems.
At work, I have a Cisco Pix. Presently, I must assign my laptop a public ip address (using static) in order to make a similar VPN conection from there (I have access-list statements to permit ah and esp any-any). I'd like it work work like the Linky at home. That is, no special setup required.
How can I do it?