I've got a little linux box configured as a dial-on-demand masquerading router for the other machines in my house. It works great..... when using a normal modem.
I got ISDN, and I've been able to use it without any problems when I use it directly from my Windows98 machine. However, when I try using the ISDN through the Linux box, it fails. The ISDN TA (modem) is a 3COM ImpactIQ external. I can dial my ISP through the ISDN modem using Minicom. I get the "CONNECT..." result string, but I get disconnected as soon as I hit any other character. I figured that, perhaps, the dial-up server was killing the connection as soon as it concluded that I wasn't speaking PPP. So, I tried connecting with the PPP daemon (using 'pon' and also using 'diald') and those fail, too. The LCP negotiation fails immediately, claiming that it got a response like "E=36". My strong suspicion is that this is part of some longer response, probably from the modem itself. I think that the first character or so from the PPP daemon is causing the server to drop the connection.... at which time the modem begins interpreting the rest of the PPP stuff as 'AT' commands. I figure the "E=36" is probably part of something longer from the modem...like "FAILURE CODE=36" or something. The remote server is an NT box using one of those RASCAL cards. Any ideas? - Joe
