Module Name:	src
Committed By:	thorpej
Date:		Wed Jan 20 03:39:54 UTC 1999

Modified Files:
	src/sys/netinet: tcp_output.c tcp_subr.c
Log Message:
Fix a problem pointed out by Charles Hannum; DF wasn't being set in
SYN,ACK packets during Path MTU Discovery.  Fix tcp_respond() to do the
appropriate route lookup and set DF as appropriate.

Also, fixup similar code in tcp_output() to relookup the route if it
is down.