Skip site navigation (1)Skip section navigation (2)
Date:      Wed, 17 Jun 1998 19:07:50 -0500 (CDT)
From:      Jeremy Shaffner <jer@jorsm.com>
To:        "Stephen A. Derdau" <sderdau@bit-net.com>
Cc:        questions@FreeBSD.ORG, adrl@whoweb.com
Subject:   Re: [Fwd: tcp_extensions]
Message-ID:  <Pine.BSF.3.95q.980617190725.4466E-100000@mercury.jorsm.com>
In-Reply-To: <3586F539.C0AFA6CE@bit-net.com>

next in thread | previous in thread | raw e-mail | index | archive | help
He means it's got nothing to do with them.  Did you try the URL he
suggested?

On Tue, 16 Jun 1998, Stephen A. Derdau wrote:

> I may be wrong in asking my isp to see if they have a fix for the
> tcp_extensions for their equipment.. However I am not technical enough
> to respond back to the isps reply which follows.
> I've installed communicator 4.05 and running tcp extensions on my
> end I still cannot get to sites like www.freebsd.org.
> So I have to disable tcp_extensions. 
> Here is the email that has passed between us. 
> > 
> > >From where are you quoting?
> > 
> > I assume you're quoting from something for FreeBSD and talking
> > about RFC1323 and RFC1644 ?
> > 
> > RFC1323:
> >         TCP Window scale option
> > 
> > RFC1644:
> >         TCP Extensions for Transactions
> > 
> > Both of these are TCP extensions.  They would only be relevant
> > to our Bay Networks Remote Access Concentrators if you were
> > making a tcp connection _with_ the RAC.  But you're not, you're
> > routing IP packets _through_ the RAC and our Cisco routers,
> > and MCI's routers, etc.
> > 
> >         What matters is that both endpoints of the TCP connection
> > properly implement the RFC's.  If you can't talk to certain
> > websites with the extensions turned on, then one end or the other
> > has a problem.  RFC1323 is a negotiated option.  If the remote
> > end doesn't support the window scale option, it won't be ack'd.
> > 
> >         Try http://www.whoweb.com .   It's a freebsd box
> > running the TCP extensions.
> > 
> >         Jon
> 
> Thisis what I sent him from the FreeBSD FAQ search ******
> 
> 
> > > 10.14. I'm having problems talking PPP ......" .
> > >
> > > Try disabling the TCP extensions in /etc/rc.conf by changing the
> > > following variable to NO:
> > >
> > >         tcp_extensions=NO
> > >
> > >
> > > Xylogic's Annex boxes are also broken in this regard and you must use
> > > the above change to connect
> > > thru them.
> > >
> 
> This is what I asked him ******
> 
> > > ***** Any Idea when the patch for your Annex system will
> > > be put in so that I can start using tcp_extensions on my end?
> > > As it is now with tcp_extensions enabled I cannot get to certain
> > > websites.  I understand it's a known problem and has been for a time.
> > > Do expect them to send / make a fix for this and if there is a fix now
> > > will this be applied to your equipment *******
> > >
> > > Thank You
> > > --
> > >                    "FreeBSD It's That and Much Much More"
> > >                    Find out Why @ http://www.freebsd.org
> > > Stephen A. Derdau
> > > http://sderdau.bit-net.com
> > > Running: FreeBSD 2.2.6-STABLE #0: Mon Jun  8 20:16:08 EDT 1998
> > >


-===================================================================-
Jeremy Shaffner					JORSM Internet
Senior Technical Support 		  Northwest Indiana's Premium
jer@jorsm.com				   Internet Service Provider	
support@jorsm.com			     http://www.jorsm.com	
-===================================================================-


To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-questions" in the body of the message



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?Pine.BSF.3.95q.980617190725.4466E-100000>