[Openswan Users] Using NAT-T with 2.6 linux kernel

[Paul Wouters]

On Tue, 7 Oct 2008, Sujithra P wrote:

> Date: Tue, 7 Oct 2008 10:46:49 +0530
> From: Sujithra P <sujithrap at gmail.com>
> To: users at openswan.org
> Subject: [Openswan Users] Using NAT-T with 2.6 linux kernel
> 
> Hi all,
> 
> I am testing the UDP-Encapsulated-ESP Tunnel mode IPSEC between IMS
> clieny and the PCSCF. (3GPP TS 33.203)

> The SAs are installed using manual keying.

NAT-T is really a function of the IKE protocol, which you do not use
wen using manual keying. Perhaps the kernel sees no one listening on
port 4500 and refuses the decapsulation?

Paul