Re: Does IPsec encrypt local communication

From: Simon Geary (simon_geary_at_hotmail.com)
Date: 09/09/03 

Date: Tue, 9 Sep 2003 11:27:33 +0200

IPSec does its business at the network layer so if you have two apps talking
to each other at the application layer on the same server they will never
come into contact with IPSec.

"Daniel" <daniel.ruetimann@dartecs.com.nospam> wrote in message
news:%23QFQuMrdDHA.1008@TK2MSFTNGP12.phx.gbl...
> Hi
>
> I am designing multi process application. The processes can be freely
> distributed in a networked environment. The process will have to
communicate
> to each other. Depending on the distribution the communication can between
> processes on the same machine or via network.
>
> I am planning to use TCP/IP for communication between all processes (local
> and networked communication). I will be using IPsec to encrypt the
> communication. However I am not sure how IPsec will have an impact on
> performance. Therefore my question:
>
> Does windows apply IPsec for local and networked communication? Or does
> Windows realize if communication is local and therefore not encrypt those
> local telegrams? Do I have to make some special configurations to only
> encrypt networked traffic?
>
> Any help highly appreciated! Thanks!
> Daniel
>
>

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