From owner-freebsd-net  Tue Jun 20  8:43:23 2000
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Date: Tue, 20 Jun 2000 10:43:10 -0500 (CDT)
From: Julie Elizabeth Schlembach <schlem@owlnet.rice.edu>
To: Garrett Wollman <wollman@khavrinen.lcs.mit.edu>
Cc: freebsd-net@FreeBSD.ORG
Subject: Re: Using timestamp option of ip header (IPOPT_TS)
In-Reply-To: <200006201504.LAA34550@khavrinen.lcs.mit.edu>
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Well, this would activate the timestamp of the tcp header, but we are
hoping to turn on the timestamp option of the (lower level) IP header.  It
does not seem as though sysctl has an analogous mechanism  for IP.  

Thank you
-Julie


On Tue, 20 Jun 2000, Garrett Wollman wrote:

> <<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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