Subject: PMTUD: notification on PMTUD route timeout
To: None <tech-net@netbsd.org>
From: None <itojun@iijlab.net>
List: tech-net
Date: 05/27/2002 01:23:24 
	it seems that there's no notification from icmp layer to tcp layer,
	when smaller-MTU route goes away.  am I correct?  how should we fix
	it? (is it sufficient if we just call registered callback routine?)

	openbsd uses PRC_MTUINC as notification from icmp layer to tcp layer.

itojun