Date: Tue, 20 Jun 2000 14:05:18 -0400 (EDT) From: Garrett Wollman <wollman@khavrinen.lcs.mit.edu> To: Julie Elizabeth Schlembach <schlem@owlnet.rice.edu> Cc: Garrett Wollman <wollman@khavrinen.lcs.mit.edu>, freebsd-net@FreeBSD.ORG Subject: Re: Using timestamp option of ip header (IPOPT_TS) Message-ID: <200006201805.OAA35181@khavrinen.lcs.mit.edu> In-Reply-To: <Pine.GSO.4.21.0006201035510.2371-100000@jungle.owlnet.rice.edu> References: <200006201504.LAA34550@khavrinen.lcs.mit.edu> <Pine.GSO.4.21.0006201035510.2371-100000@jungle.owlnet.rice.edu>
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<<On Tue, 20 Jun 2000 10:43:10 -0500 (CDT), Julie Elizabeth Schlembach <schlem@owlnet.rice.edu> said: > 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. Sorry, I misread your original message. The only way to use the IP timestamp option under FreeBSD is to send raw packets (using the SOCK_RAW interface) with either header included (IP_HDRINCL) or by reading and writing the option explicitly (IP_RECVOPTS and IP_OPTIONS). -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 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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