[Openswan Users] connect to the Xl2tp+openswan failed from 2 virtual machine

[Paul Wouters]

On Wed, 11 Aug 2010, Spacelee wrote:

> 2 virtual machine is bridgedWhen start a connection from one VM,
> everything is OK, but start a connection from another one VM, it can't
> establish a connection.

>         protostack=netkey

> Aug 11 11:04:24 moun pluto[5940]: "L2TP-PSK-NAT"[18] 125.33.176.240 #21:
> cannot install eroute -- it is in use for "L2TP-PSK-NAT"[17]
> 125.33.176.240 #19

You are attempting to connect from the same IP twice? Or two clients behind
one NAT router, or two clients from behind two NAT routers with thesame
internal IP.

This is currently only supported using the SAref patches, which have not
yet been submitted/accepted to the upstream linux kernel. So you will need
to use klips in protostack=mast mode. Then you can add overlapip=yes to your
conn L2TP-PSK-NAT and it should work.

Paul