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Date:      Sun, 4 Aug 2002 12:24:10 +0200
From:      Borja Marcos <borjamar@sarenet.es>
To:        <freebsd-security@FreeBSD.ORG>
Subject:   Re: esp tunnel without gif(4) [Was Re: vpn1/fw1 NG toipsec/racoontroubles, help please ...]
Message-ID:  <200208041224.10309.borjamar@sarenet.es>
In-Reply-To: <sd4ab7c6.030@aus-gwia.aus.dcnhs.org>
References:  <sd4ab7c6.030@aus-gwia.aus.dcnhs.org>

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On Friday 02 August 2002 23:47, Matthew Grooms wrote:
> Its only backwards if you are used to implimenting IPSEC communications
> in a non-giff'd confguration. As mentioned before, this is endorsed by
> many how-to's available. If you don't like this method, don't use it. I
> for one prefer the giffed alternative but will be more than happy to
> admit that the benifits appear to be mostly cosmetic.

=09I am not using gif right now, but I see two important advantages.

=09I suppose it will be possible to put firewall rules in a gif interface=
=2E=20
Imagine that you establish a tunnel with a not so trusted party, only for=
 a=20
limited purpose.

=09I suppose as well that it is possible to sniff traffic in a gif interf=
ace.=20
Tools such as Argus, Ntop, can be used with encrypted tunnels. Otherwise,=
 you=20
are blind.


=09Borja.


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