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I'm using Openswan and xl2tpd to set up a VPN connection for a Windows computer, everything looks perfectly configured and the IPSec connection is successful :

STATE_QUICK_R2: IPsec SA established transport mode

But nothing else happens, and after about a minute, Windows aborts the connection because it couldn't establish the L2TP tunnel, and there was no trace of xl2tp anywhere in the logs even though it is running.

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1 Answer 1

up vote 1 down vote accepted

The solution is to add the leftprotoport option to 17/%any in your Openswan configuration (most likely located at /etc/ipsec.conf).

Example :

version 2

config setup

conn l2tp-PSK
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