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Re: Path MTU Discovery

To: Ran Atkinson <rja@inet.org>
Subject: Re: Path MTU Discovery
From: "Angelos D. Keromytis" <angelos@aurora.cis.upenn.edu>
Date: Tue, 11 Feb 1997 07:44:54 -0500 (EST)
Cc: Ben Rogers <ben@ascend.com>, Dan McDonald <Dan.McDonald@Eng.sun.com>, ipsec@tis.com
Sender: owner-ipsec@ex.tis.com

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In message <Chameleon.855633160.rja@c8-a.snvl1.sfba.home.com>, Ran Atkinson wri
tes:
>
>  In effect, ESP tunnel mode uses the outer IP as a link-layer.  Copying
>DF bit is not prohibited for IPsec tunneling, but neither is it required
>for IPsec tunneling.

I think that, if not mandate copying the DF bit, the new drafts should
at least present the benefits of doing so and provide guidelines to
anyone who wants to have his implementation allow PathMTU. Or it could
be a separate document altogether.
- -Angelos

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Re: Path MTU Discovery

From: Ran Atkinson <rja@inet.org>

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