A Peer Node Group is a collection of DSR peer nodes that cannot tolerate multiple failures within the collection. DSR peer nodes are configured in a Peer Node Group container to indicate that connections, which are initiated from peers in the group, are distributed across multiple DA-MPs of an IPFE Target Set. In order for the IPFE to be aware of Peer IP addresses, Peer Nodes in a Peer Node Group must be configured with one or more Peer IP addresses. Target sets can only be configured to support IPFE Initiator Connection support when its DA-MPs listening ports are within the new responder port range.