Date: Sat, 24 Apr 1999 09:02:10 +0200 From: tobi@bland.fido.de (Tobias Ernst) To: freebsd-isdn@freebsd.org Subject: instabilities Message-ID: <MSGID_242=3A7600=2F1_37218b98@Fido.DE>
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Hallo! Thanks to Gary's efforts, I am using an Elsa ISDN PCC-16 to connect to my University via PPP. It has been working flawlessly for the last months. In the last week, I had two very strange effects. The first one was this: isdnd dialed in properly, but disconnected five seconds after that, without sending any IP packets. The second one was today: isdnd dialed in all right, and from the FreeBSD machine, I was also able to send IP packets, but IP masquerading had died mysteriously, i.e. I could not send anything from my client machines. Traceroute showed the packets vanishing somewhere on the FreeBSD machine. In both cases, I shut down anything that could have to do with it, i.E. I killed natd, configured isp0 down, and killed isdnd. After that, I invoked start_if.isp0, to have everything come up properly again. It didn't help anything. Having reached the end of my knowledge, I then rebooted the FreeBSD machine (urgh ...), and after that, everything worked OK again. Of course I did not change anything on the configuration since it first worked, and there were no unusual log entries whatsoever. Now my question is on what tools I could use to find out what actually is going wrong the next time a problem of this sort pops up. In the first case, I suspect that the problem must have been somewhere in the ISDN layer, so I think I have not much chance of finding out unless I want to invoke a debugger. But in the second case it must have been a problem in the IP layer, and so there should be ways to diagnose it. spppcontrol perhaps? My system is FreeBSD 2.2.8 with i4b 0.70.00 and Gary's patches for the PCC-16 applied. Viele Gruesse, Tobias To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isdn" in the body of the message
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