pmtu_probe is used by sys/netinet6/tcp6*.c only. From: Krister Walfridsson <cato@df.lth.se>
pmtu_probe is used by sys/netinet6/tcp6*.c only.
From: Krister Walfridsson <273a08e1cdf0eb5d698acd40a95ce6098a2420fa@df.lth.se>

MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame