Call ip_output() with IP_FORWARD flag to prevent it from overwriting the ip_id again.  ip_id is already set to the ip_id of the encapsulated packet.
Call ip_output() with IP_FORWARD flag to prevent it from overwriting the
ip_id again.  ip_id is already set to the ip_id of the encapsulated packet.

Make a comment about mbuf allocation failures more realistic.

Reviewed by:	sobomax

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase