From owner-freebsd-questions  Wed Sep 27  9:19:50 2000
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Date: Wed, 27 Sep 2000 09:18:15 -0700
From: Alfred Perlstein <bright@wintelcom.net>
To: "flaggaccio@libero.it" <flaggaccio@libero.it>
Cc: freebsd-questions@FreeBSD.ORG, freebsd-stable@FreeBSD.ORG
Subject: Re: Random net errors: any guru out there?
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* flaggaccio@libero.it <flaggaccio@libero.it> [000927 05:19] wrote:
> I've some random net problems using my FreeBSD 4.1 STABLE (i'm using
> dial-up connection).
> 
> A lot of site seems to be unreachable.
> I get a lot of timeout errors when i try to wget, to connect to irc
> server, to use www, etcetc but:
> 
> -ping, nslookup & traceroute give me a positive response: the site is up
> and running, and i'm unable to reach it
> 
> -the errors are random: in the first connection www.slashdot.org is
> unreachable.
> So i disconnect and redial, now i can see slashdot but another one site
> that previously was ok, now is unavailable, and so again...i'm really
> sad...=(
> 
> -all is ok under windows, so it's not an error of my isp, it's the bsd
> side that is wrong
> 
> I hope that anyone can help me...
> 
> Paolo
> 
> p.s. apologize me for my bad english

Your english is fine, no need to apoligize.

I remeber coming across this problem with FreeBSD several years ago,
someone told me to turn on or off the rfc extentions, try this:

sysctl -w net.inet.tcp.rfc1323=0

if that works then you can add:

tcp_extensions="NO"

to /etc/rc.conf.

-Alfred


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