I have a laptop with CIPC installed, which works fine on the local network with CCME. When I launch CIPC from a remote site, it just sits at 'registering' forever. The two sites are connected via a standard site-to-site IPsec VPN. The laptop can ping the internal IP of the remote router, which is also the TFTP server setup in CIPC, and the CCME box.
Any ideas on how to get CIPC working through IPSec VPN?