Replication traffic is  iSCSI traffic, so ports 3260 and ICMP must be allowed across the want.  So it can only come from the iSCSI enabled ports on the array.   So a router on the SAN subnet will be needed.  That is defined by the default GW.      MPLS WANs must be set to enforce the Do Not Fragment bit the array will be sending during replication.  Otherwise replication will fail. 
Hi guys, I tried searching on this but got an error so please be gentle if it's already been posted/answered :) I wish to setup SRM and utilise the replication on our arrays.  Prod site: LAN subnet: 172.16.2.x VMWare ESXi 5.1 hosts (Dell R620s)2x PS4100 members grouped (iSCSI group IP: 192.168.150.2)2x PowerConnect 6224 stacked for iSCSI MPLS WAN connected, 10MBit fiber. DR site: LAN subnet: 172.16.4.x VMWare ESXi 5.1 hosts (Mix of older Dell servers)1x PS4100 (iSCSI address of 192.168.151.100)1x PowerConnect 6224 (iSCSI)  My question is:For ABR replication to work, does the replication traffic run over the iSCSI network, or can it be routed via the LAN somehow?  Thanks
Need help configuring replication for SRM install