Module Name:	src
Committed By:	thorpej
Date:		Mon Jan 11 21:26:53 UTC 1999

Added Files:
	src/sys/netinet: ip_ipip.c ip_ipip.h
Log Message:
Separate out the IP-in-IP implementation from the GRE code.  This cleans
up the interface to ip_mroute.c somewhat, and properly separates IP-IP
from GRE.  (They are similar, but they are different protocols, and should
not be implemented in the same place.)