Return to BSD News archive
Path: euryale.cc.adfa.oz.au!newshost.carno.net.au!harbinger.cc.monash.edu.au!munnari.OZ.AU!news.ecn.uoknor.edu!feed1.news.erols.com!news-peer.sprintlink.net!news-pull.sprintlink.net!news.sprintlink.net!Sprint!news-feed1.tiac.net!cam-news-hub1.bbnplanet.com!news.bbnplanet.com!hermes.sovam.com!sovam!demos!jetinf!horse!not-for-mail From: mk@jet.msk.su (Max Klochkov) Newsgroups: comp.unix.bsd.freebsd.misc Subject: Re: FreeBSD vs Annex - problem with TCP sessions Date: 12 May 1997 07:36:46 GMT Organization: Jet Infosystems Lines: 44 Message-ID: <5l6hae$nab$1@tiger.jet.msk.su> References: <5kmp6g$mbs$1@tiger.jet.msk.su> <5kn8hd$76g@raptor.mtc.ti.com> NNTP-Posting-Host: horse.jet.msk.su X-Newsreader: TIN [UNIX 1.3 950726BETA PL0] Xref: euryale.cc.adfa.oz.au comp.unix.bsd.freebsd.misc:40746 7 May 1997 14:45:58 GMT Brian Somers (brian@shift.utell.net) wrote: > In article <336FD0E4.2195@onthenet.com.au>, > Tony Griffiths <tonyg@OntheNet.com.au> writes: > > Rex Fowler wrote: > >> > >> > >> Have you tried changing /etc/sysconfig to the following? > >> > >> # > >> # Some broken implementations can't handle the RFC 1323 and RFC 1644 > >> # TCP options. If TCP connections randomly hang, try disabling this, > >> # and bug the vendor of the losing equipment. > >> # > >> tcp_extensions=NO > >> > > Also, you migh want to try disabling VJ compression. We had an > > interesting situation here the other day (Friday) where a FreeBSD box > > could dial in to our Annex T/S but could NOT talk TCP to ANY local > > FreeBSD box, but COULD talk to Solaris and Digital Unix boxes. UDP > > worked (at least ping worked). In desperation, we put a '-vj' in the > > options file, bounced the link and then it all worked fine! > > > > The symptions of the problem were 'hung' TCP connections that were > > sometimes ESTABLISHED but other times in SYN_WAIT. > > > > Apparently, there is a "bug" in the VJ compression code that is still > > there in 2.2.1 . A friend of mine has supposedly fixed the code but is > > still to feed the changes back to the developers. I'll twist his arm a > > little more!!! > > If you can twist a little harder, I'll incorporate the changes. > > > Tony > > -- > Brian <brian@awfulhak.org> <brian@freebsd.org> > <http://www.awfulhak.org> > Don't _EVER_ lose your sense of humour ! The problem was completely solved after using kernel PPP (pppd) with VJ compression turned off. -- Maxim Klochkov