IPSec Error 791

[Rick Csucsai]

I set up a lab with an identical configuration and everything worked great.
Not that I have the real deal in, I get teh following error message when
trying to make a L2TP connection:

Error 791: The L2TP connection attempt failed because security policy for
the connection was not found.

Certs for the server and client machines are installed as well as for CA.
Anyone have any ideas?

P.S. My client machine is my machine at home and it sits behind a Linksys
DSL router.

Thanks
Rick

 

[Rick Csucsai]

Also, PPTP connections work fine.

 

[Bill Grant]

Is this from a machine with a private IP going through a NAT router? NAT
and IPSec are not compatible without NAT traversal add-ons. IPSec rejects
packets which have been altered by NAT.

 

[microsoft public]

Just found out from a few others that the linksys is not a good candidate.
It does have a setting for IPsec pass through but even with it enabled, it
doesn't work. Took the laptop outside of the router and connected fine.
Anyone have a solution with a linksys router BFSR41.

Thanks

Rick