RE: IPSec vs. IPSec/L2TP
From: Ghaith Nasrawi (libero_at_aucegypt.edu)
Date: 04/11/05
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Date: Mon, 11 Apr 2005 01:07:03 +0000 To: "security-basics" <security-basics@securityfocus.com>
The reason people use L2TP is due the need to provide login mechanism
to users. IPSec by itself is meant to by a tunneling protocol in a
gateway-to-gateway scenario (there are still two modes, tunnel mode &
transport mode). So vendors use L2TP to allow people to use their
products in client-to-network scenario. So, they use L2TP only for
logging and the rest of the session would be using IPSec. You have to
take in consideration two other modes; pre-shared-keys vs. certificates.
see, IPSec is a very complex protocol and few cryptologists kept
moaning about its unnecessary complexity which leads to confusion.
regards,
g.
> -----Original Message-----
> From: BĂ©noni MARTIN [mailto:Benoni.MARTIN@libertis.ga]
> Sent: 08 April 2005 13:55
> To: security-basics@securityfocus.com
> Subject: IPSec vs. IPSec/L2TP
>
>
> Hi list,
>
> I was wondering how much the security is enhanced by using
> L2TP/IPSec tunnelling instead of a good old IPSec tunnel. I found
> a lot of information googling around the web, but couldn't find a
> good paper explainig this enhancement (or not).
>
> If anyone cound give me any hint, personnal experience feedback
> or URL, this will be appreciated !
>
> Thx !
-----
(o_
//\ Ghaith Nasrawi
V_/_
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