I'm looking to setup the SBS 2011 VPN through our SSG5 firewall. The SBS side of the VPN is setup fine and I can connect to it from within our network without issue.
But when I try connecting via the web I receive the following message within the firewall logs.
An initial packet arrived from an unrecognized peer gateway
Rejected an IKE packet on ethernet0/0 from 217.42.xxx.xx:500 to xxx.xxx.xxx.xxx:500 with cookies 16169818c721f6ae and 0000000000000000 because an initial Phase 1 packet arrived from an unrecognized peer gateway.
I've set up port forwarding wthin the firewall to the SBS server and that appears to be correct. I've search for this issue but can't find any solutions as to what I am missing or what else I need to do.
Please can you help me fill in the missing steps.