cvs commit: src/sys/netinet tcp_subr.c

[Bruce M Simpson]

On Wed, May 04, 2005 at 01:48:44PM +0000, Andre Oppermann wrote:
>   Log:
>   If we don't get a suggested MTU during path MTU discovery
>   look up the packet size of the packet that generated the
>   response, step down the MTU by one step through ip_next_mtu()
>   and try again.

Yay! Now I really need to sit down and sort out the gre(4) PMTU story.

Of course a more generic way of doing this might be good, e.g. a generic
PMTU callback for each protocol which needs to exchange this information
with the IP/ICMP layer.

BMS