[Openswan Users] Packet has no Non-ESP marker

Stefan Denker Stefan at dn-kr.de
Mon Nov 13 05:50:58 EST 2006

Hello once again, 

The situation is the same as in my previous post:

seikan:~# ipsec --version
Linux Openswan U2.4.6/K2.6.17.8seikan (netkey)

with xltp2d 1.04 acting as a server to an XP workstation.
The connection is successfully established, "ping" works. 

But... "ping -l 138"(pinging with 138 Bytes of data) doesn't
work. While doing this pluto logs: 

Nov 13 11:11:25 seikan pluto[1825]: packet from recvfrom has no Non-ESP marker
Nov 13 11:11:56 seikan last message repeated 7 times

What is this "Non-ESP marker"? I thought it might have something to do
with packet fragmentation, so I reduced the mtu of the Windows machine
as far as 1000, but with no luck. 


Swordfish? Every password  was swordfish! Whenever anyone tried to
think of a word that no one would ever guess, they always chose
swordfish. It was just one of those strange quirks of the human mind.
(Seargent-at-Arms John Keel)           [Terry Pratchett, Night Watch]
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