I have one main office and 4 remote sites
all remote sites need a VPN IPSEC connection to the main office.
3 of these sites have succesful VPN's because all have static IP's however the 4th site unfortunately has a dynamic IP assigned from its ISP.
When trying to set up the vpn i set the peer address as a FDQN (from dyndns.org) however the cisco translates this and replaces it with its IP, so if the site was to be issued with a new IP the VPN tunnel would be broken until i replaced the IP again.
Surely there must be some config to sort this out? even cheap routers can do VPN's to dynamic IP's
Any help would be greatly apperciated