We just changed ISPs and thus have new IPS. We have a new WAN IP and then a block of IPS (CIDR). After this change our two site to site VPN tunnels stopped working. We changed the IP of the remote site to the new WAN interface IP (on the two remote routers) but the connections still won't work. All of the devices are Cisco ASA apliances. Are we missing something in regards to ACL or routing ? Usually changing the remote site VPN on the remote routers brings things right back up.
Thanks for your help.