Date: Fri, 19 Jul 2002 12:09:54 +0100 (BST) From: Andrew Gordon <arg-bsd@arg1.demon.co.uk> To: Jan Goebel <jgoebel@rbg.informatik.tu-darmstadt.de> Cc: <freebsd-isdn@freebsd.org> Subject: Re: I can only get half the internet! Message-ID: <20020719115738.Y48507-100000@server.arg.sj.co.uk> In-Reply-To: <Pine.SOL.4.21.0207191113460.23660-100000@ultra18.rbg.informatik.tu-darmstadt.de>
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On Fri, 19 Jul 2002, Jan Goebel wrote: > I set up an isdn card in my freebsd-box. I can connect to my provider, ping, > traceroute, resolve names, or work on remote hosts using ssh. > But I can't do anything else e.g. cvsup or even view webpages! > It seems, that my PC doesn't care about the sequence numbers and always > sends back an "ack 1". So I got the latest stable tonight, but nothing changed. I don't know what the real problem is, but you are mis-understanding the tcpdump output here: after the initial SYN handshake, tcpdump switches to showing relative sequence numbers rather than the value on the wire, so "ack 1" is normal here. Use the -S flag to tcpdump if you really want to see the big sequence numbers. > Below is a log of tcpdump when I tried to get a www-page. This shows all going well up until the TCP connection is open and your system tries to send the first data (presumably the HTTP query), which is never acknowledged. As a wild guess, have you tried turning off vj compression? The point at which it fails is the first packet where vjcomp would take effect. [The dump also shows your system doing IPv6 name resolution - which is a waste of time unless you are actually connected to some IPv6 networks] To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isdn" in the body of the message
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