IPSec vs L2TP/IPSec

From: Michael--J (MichaelJ_at_discussions.microsoft.com)
Date: 02/25/05 

Date: Thu, 24 Feb 2005 21:25:03 -0800

Hi,

I have an x86 device called FB6500
(http://www.fabiatech.com/products/fb6500.htm). It uses Windows CE 5.0 which
i built using PB 5.0. It's purpose is to run an app which uses TCP/IP. It
basically sends TCP packets to a client every 10 seconds.

I am considering of putting some sort of security or encryption for this TCP
stuff but i am not sure what to use. Platform Builder has IPSecv4 as well as
L2TP/IPSec. I have tried to read the documentation on both and realized that
they are separate components - L2TP/IPSec does not depend on the IPSecv4
component. Both have encryption mechanisms so i'm a bit confused as to which
i should use. Any advice? Thanks.

Michael--J.