Re: How do I debug this link - Win95 dialing RH9 Linux ppp server

From: wb0gaz (wb0gaz_at_hotmail.com)
Date: 08/27/04 

Date: 27 Aug 2004 09:04:35 -0700

The problem was tracked down - turns out the mtu/mru
entries were causing transmission errors during web browsing
(but for whatever reason not during ssh sessions.) Basic approach
was to eliminate each instruction in /etc/ppp/options that could
not be specifically justified (either by reading documentation
or other dialogs on c.o.l.n or trial-and-error.)

Anyway, the working /etc/ppp/options in the dial-in machine
in this case is just this:

lock
asyncmap 0
crtscts
ms-dns 192.168.0.1
passive
proxyarp
modem

###

wb0gaz@hotmail.com (wb0gaz) wrote in message news:<7670fd52.0408231228.1f17be2c@posting.google.com>...
> I am not able to get Win95 dial-up to a RH9 dial-in server working for
> http:// (web) transfers, altough other (ssh-based) transfers work.
>
> When I use a web browser (I started with IE5.5, then shifted over to
> Mozilla 1.7, and got the same outcome in each case) to access
> Internet, http:// sessions appear to stall after a few hundred or a
> few thousand bytes of data send/receive. It appears after a few data
> packets are exchanged during a single http:// transfer sequence that
> the transfers stall (it doesn't disconnect, data packets just cease
> transfer.)
>
> Even after this happens, I can use a ssh client to open a ssh session
> over the same link (example right after a stalled http:// session) and
> that works fine, and I can also transfer long files over a ssh
> session.
>
> When I use a linux (RH9) machine to dial into the same server, all
> works fine.
>
> This is my configuration:
>
> A Windows 95 (B) laptop is dialing to a Redhat 9 Linux ppp server.
>
> The linux machine has the following /etc/ppp/options file contents:
>
> lock
> asyncmap 0
> crtscts
> mru 576
> mtu 576
> ms-dns 192.168.0.1
> ms-wins 192.168.0.1
> netmask 255.255.255.0
> passive
> proxyarp
> modem
> usehostname
>
> The Windows 95 machine has all dial-up options off except for
> "TCP/IP", and TCP/IP settings have only "Use default gateway on remote
> network" selected.
>
> I've read the ppp "options" definitions a number of times, and I've
> done quite a bit of trial-and-error, but no solution yet (some changes
> completely break the connection, but nothing improves on the http://
> problem above.) I have tried enabling "debug" on the server end hoping
> to see a packet trace, but evidently I am not doing that properly,
> hence perhaps someone could suggest if that's a useful path to take
> (then, how?) or other approach to solving.
>
> Very tnx,
>
> Dave
> wb0gaz@hotmail.com

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