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Date:      Tue, 20 Jun 2000 11:04:36 -0400 (EDT)
From:      Garrett Wollman <wollman@khavrinen.lcs.mit.edu>
To:        Julie Elizabeth Schlembach <schlem@owlnet.rice.edu>
Cc:        freebsd-net@FreeBSD.ORG
Subject:   Using timestamp option of ip header (IPOPT_TS)
Message-ID:  <200006201504.LAA34550@khavrinen.lcs.mit.edu>
In-Reply-To: <Pine.GSO.4.21.0006200921170.12811-100000@jungle.owlnet.rice.edu>
References:  <Pine.GSO.4.21.0006200921170.12811-100000@jungle.owlnet.rice.edu>

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<<On Tue, 20 Jun 2000 09:23:10 -0500 (CDT), Julie Elizabeth Schlembach <schlem@owlnet.rice.edu> said:

> a) Activate the timestamp option of the ip header (IPOPT_TS)

sysctl -w net.inet.tcp.rfc1323=1

(which should be the default state, but some ancient buggy PPP servers
break when they see one and in any case it defeats VJ header
compression).

> b) Read these timestamps at the destination machine (by modifying
> tcpdump...?)

No modification required.

-GAWollman

--
Garrett A. Wollman   | O Siem / We are all family / O Siem / We're all the same
wollman@lcs.mit.edu  | O Siem / The fires of freedom 
Opinions not those of| Dance in the burning flame
MIT, LCS, CRS, or NSA|                     - Susan Aglukark and Chad Irschick


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