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Re: TCP Checksum Interoperability

2002-04-05 17:10:33
At 06:37 PM 4/5/2002, Lloyd Wood wrote:
On Fri, 5 Apr 2002, Rob Austein wrote:

> At Fri, 5 Apr 2002 23:13:47 +0100 (BST), Lloyd Wood <l(_dot_)wood(_at_)eim(_dot_)surrey(_dot_)ac(_dot_)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,

RFC 1812 status is Proposed Standard.

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

RFC 2644 is a BCP. It updated one item in RFC 1812 (Router Requirements) which was later deemed an exceedingly bad idea.


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

RFC 1812, Router Requirements, references 1122. Routers generally have to be valid hosts, too.


$ 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(_dot_)Wood(_at_)surrey(_dot_)ac(_dot_)uk>PGP<http://www.ee.surrey.ac.uk/Personal/L.Wood/>

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