From owner-freebsd-hackers Thu Sep 19 05:36:47 1996 Return-Path: owner-hackers Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id FAA01405 for hackers-outgoing; Thu, 19 Sep 1996 05:36:47 -0700 (PDT) Received: from itsdsv1.enc.edu (itsdsv1.enc.edu [199.93.252.241]) by freefall.freebsd.org (8.7.5/8.7.3) with SMTP id FAA01372 for ; Thu, 19 Sep 1996 05:36:43 -0700 (PDT) Received: from dingo.enc.edu (dingo.enc.edu [199.93.252.229]) by itsdsv1.enc.edu (8.6.12/8.6.9) with SMTP id IAA09373 for ; Thu, 19 Sep 1996 08:36:11 -0400 Date: Thu, 19 Sep 1996 08:36:11 -0400 (EDT) From: Charles Owens To: freebsd-hackers@freebsd.org Subject: Re: TCP extensions breaking TCP. Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-hackers@freebsd.org X-Loop: FreeBSD.org Precedence: bulk "Gary Palmer" said: >"Daniel O'Callaghan" wrote in message ID >: >> If people would like to test out the other machine (still has extensions >> on, I believe) it is at pixel.planetx.com.au - try telnetting to its >> smtp port. One of my machines which has extensions on, and which won't >> talk to pixel, is tutu.schools.net.au. > >>From a quick traceroute: > >12 webnet.gw.au (139.130.3.222) 285.913 ms 290.420 ms 282.206 ms >13 annex0.webnet.com.au (203.8.105.10) 287.745 ms 310.981 ms 285.721 ms >14 pixel.planetx.com.au (203.16.241.66) 460.288 ms 419.488 ms 421.294 ms > >(thank God for people with nice naming conventions) > >Annex's (older) TCP implimentation is known to barf on RFC 1323 and >1644. Either update the OS on the Annex or turn off the TCP options >support. Related Question: If I'm running a service that its important that ANY internet host can reach (ex. a mail server), should TCP extensions be turned off to ensure compatibility with any devices that may have older TCP implementations (such as we've seen above) ? Or, are such situations so rare that its better to leave them on? Thanks, --- ------------------------------------------------------------------------- Charles Owens Email: owensc@enc.edu "I read somewhere to learn is to Information Technology Services remember... and I've learned that Eastern Nazarene College we've all forgot..." - King's X -------------------------------------------------------------------------