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Re: TCP Checksum Interoperability

Lloyd Wood <l.wood@eim.surrey.ac.uk> Fri, 05 April 2002 23:37 UTC

Date: Sat, 6 Apr 2002 00:37:35 +0100 (BST)
From: Lloyd Wood <l.wood@eim.surrey.ac.uk>
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To: Rob Austein <sra+ietf@hactrn.net>
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Subject: Re: TCP Checksum Interoperability
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On Fri, 5 Apr 2002, Rob Austein wrote:

> At Fri, 5 Apr 2002 23:13:47 +0100 (BST), Lloyd Wood <l.wood@eim.surrey.ac.uk> wrote:
> >
> > and RFC791 claims ttl is in seconds, ergo I don't have to decrement
> > ttl because I know my traffic is on paths less than a second
> > long.
>
> Covered by RFCs 1122 and 1812.

gee, 1812 isn't a standards document, and is updated by 2644, which
isn't a standards document either.

as for 1122, it's requirements for internet hosts, not requirements
for internet gateways... but matt points out,

$ You lose -- 791 says you have to subtract at least 1 from TTL even if.

damn. should have picked an option case instead.

L.

<L.Wood@surrey.ac.uk>PGP<http://www.ee.surrey.ac.uk/Personal/L.Wood/>

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