Alessandro de Manzano wrote:

Hello!

I'm having very strange (to me) PPP problems with a 4.8-R notebook
trying to connect to the Internet via a GPRS mobile phone.

Note: The exactly same hardware works fine with WinXP so it should work
under FreeBSD also, I guess ;-))

Situation: I'm using the following /etc/ppp/ppp.conf file (comments
removed)




I use ppp as my usual connection method, it's slow but reliable. My ISP reciently (6 months ago) switched from a "UNIX" terminal server to a "RAS" server. So I had to revisit my ppp config reciently. The only major difference between your configuration file and mine are you disabled lots of things and I set my mtu to 500.


If I were trying to get this working - I would comment out the disable lines and set the MTU smaller. Because you are using a mobile phone you may have to set your MTU really small, like 300. Is there a coresponding MRU? If there is it should also be small.

There is a posibility that mobile phones want a complete packet before sending any data - in which case you will have to either try to make ppp send larger packets or set the timeout values in ppp to a larger value. And no I don't know what that timeout value is called.

I also looked through the trace... there is one thing I saw in my trace but not yours:

Jun 30 14:33:20 eric ppp[624]: tun0: LCP: deflink: State change Req-Sent --> Ack
-Rcvd
Jun 30 14:33:20 eric ppp[624]: tun0: LCP: deflink: RecvConfigReq(2) state = Ack-
Rcvd


O.K. it's two lines but the trace you sent never enters Ack-Rcvd state before the PAP authentication. And that is probably the symptom of the problem.

Henry

--
Henry Tieman
Objects in the mirror are closer than they appear.


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