This is the actual IP address by which this local FCIP entity is reachable over the IP network, consistent with the address family declared in cfmFcipEntityAddressType. This address is what a remote FCIP entity's peer configuration must reference to establish a TCP connection for the FCIP tunnel, making it a critical, must-match value between both ends of any SAN extension link. A remote MDS switch's static route entry pointing back at this entity would need to specify exactly this same IP address, for example 10.20.30.40, or the FCIP connection attempt would fail.