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Date:      Tue, 8 Jul 2003 21:06:24 -0400
From:      "Will Saxon" <WillS@housing.ufl.edu>
To:        "Brent Wiese" <brently@bjwcs.com>, <freebsd-questions@freebsd.org>
Subject:   RE: NAT and MTU
Message-ID:  <0E972CEE334BFE4291CD07E056C76ED8DB2F84@bragi.housing.ufl.edu>

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> -----Original Message-----
> From: Brent Wiese [mailto:brently@bjwcs.com]
> Sent: Tuesday, July 08, 2003 8:45 PM
> To: freebsd-questions@freebsd.org
> Subject: NAT and MTU
>=20
>=20
> I have a machine that is being double-NAT'd.
>=20
> Would it make sense to set the MTU lower to account for the=20
> NAT overhead?
>=20
> It makes sense to me as I know MTU, but I like to check in=20
> case my thinking
> isn't right. :)


Why would it matter? Does NAT increase the overall datagram size? I =
thought it just changed addresses and stored connection information in a =
table somewhere. If this is the case, just having NAT, even 2x, isn't =
going to make it any more likely that your traffic will fragment.

-Will



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