[Openswan Users] Again: "no connection is known for..."

Jacco de Leeuw jacco2 at dds.nl
Wed Mar 23 15:48:25 CET 2005

Piero Filippin wrote:

> I want to setup IPCop so it permits a connection to the GREEN network 
> only through a VPN connection to the laptop (which is a standalone 
> machine, not connected to a network).
> WinXPSP2 Laptop  -->  Access point --> IPCop Box (blue) --> IPCop box green
> Windows XP tries to connect, but timeout after a while: “error 792: The 
> L2TP connection attempt failed because security negotiation timed out”.

Your XP client wants to use L2TP/IPsec but your IPCop server is configured
for plain IPsec (i.e. without L2TP). You have to decide which one you want
to use:

- plain IPsec with Marcus Mueller's IPSEC.EXE utility
- plain IPsec with a commercial third-party IPsec client such as NCP,
   Greenbow or SoftRemote
- L2TP/IPsec

L2TP/IPsec is not supported out of the box by IPCop. It is still in
development. See also:

Jacco de Leeuw                         mailto:jacco2 at dds.nl
Zaandam, The Netherlands           http://www.jacco2.dds.nl

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