No NAT or firewall in between, just a router with no access list that affects this setup. I just removed all the replication configuration in the group manager and then added it back in, and I seem to be able to copy data across. I'll let it keep running to see if it manages to finish.
Hello.I am trying to configure replication between two networks. Currently I can ping the Group IP of the other SAN from both SANs, but I can not ping the interface adresses. What could cause behavior such as this? How is the group IPdifferent from the interface IPs? 
Replication fails