From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Beschorner Daniel" <Daniel.Beschorner@facton.com>
Subject: pmtu discovery on SA
Date: Wed, 18 Jul 2007 14:21:56 +0200
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> > No more crashes with IPComp and smaller PMTUs.
> > But the "pmtu discovery on SA ESP/..." messages don't disappear.
> 
> Thats probably a different issue. Please post the output of
> "ip -x xfrm state" (obfuscate keys if you care ..).

Linux (MTU 1500) <-> ADSL router (1492) <-> ... <-> Linux (1500)

Both boxes show these messages.

src 1.1.1.1 dst 2.2.2.2
        proto comp spi 0x0000e901 reqid 16398 mode tunnel
        replay-window 0
        comp deflate 0x
src 2.2.2.2 dst 1.1.1.1
        proto comp spi 0x000001a3 reqid 16398 mode tunnel
        replay-window 0
        comp deflate 0x
src 1.1.1.1 dst 2.2.2.2
        proto esp spi 0x767eaf0b reqid 16397 mode transport
        replay-window 32
        auth hmac(sha1) 0xxxxxxxxxxxxxxxxxxxxxx
        enc cbc(aes) 0xxxxxxxxxxxxxxxxxxxxxx
src 2.2.2.2 dst 1.1.1.1
        proto esp spi 0x44c5adda reqid 16397 mode transport
        replay-window 32
        auth hmac(sha1) 0xxxxxxxxxxxxxxxxxxxxxx
        enc cbc(aes) 0xxxxxxxxxxxxxxxxxxxxxx
src 2.2.2.2 dst 1.1.1.1
        proto (null) spi 0xd527fed2 reqid 0 mode tunnel
        replay-window 0
src 1.1.1.1 dst 2.2.2.2
        proto (null) spi 0x4cf1a149 reqid 0 mode tunnel
        replay-window 0