>When configuring ppp to use on a Duo 250 with an Express Modem. In the >protocol file, Which if any do you check: > >1. allow error correction in modem >2. use TCP header compression > >I keep getting disconnected and I think allowing error correction in modem >might be the problem. Using error correction is more likely to preserve your connection through mild line noise than cause it to be dropped, but the Duo Express modem is sufficiently flaky that you might want to try it both ways and decide which works best in some vaguely scientific fashion. You should probably leave TCP header compression on in any event, since turning it off won't buy you anything in terms of connection stability, but will significantly increase the transmission overhead of using PPP. Turning error correction off in the modem (software) will also give you back some CPU and take some interrupt load off the poor little Duo, so it may be a plan. You'll lose the occasional benefit of compressing things like web pages as they download, but the overall effect will probably be a win (on the 280 it might be a different story, since that machine has about twice as much available CPU to work with). >On my Duo 280 and my son's 250 there are several modem tools: > > XMODEM Tool > TCPack > Serial tool > Express Modem Tool > AppleTalk ADSP Tool > Apple Modem Tool > > Which ones do I use? I am using the internal Express Modem for >connecting. For PPP you won't use any of them. If you want to make a direct terminal connection with something like Clarisworks, you'd use the Express Modem Tool or the Apple Modem Tool. However, I seem to recall that you do need to leave the Express Modem Tool in the Extensions folder to be able to use the Express modem (even though you won't invoke it directly). Presumably it installs some INIT code at boot time, even though it oughtn't. TCPack is a stub mdev that's used by the AOL software to feign an Internet connection through the AOL dialup software. Since AOL is basically pretty nasty and you're apparently not using it (you're using OT/PPP), you can lose it. -- Marc Sira | [EMAIL PROTECTED] "If you can't play with words, what good are they?" ---------- Duo/2400 List, The friendliest place on the Net! A listserv for users and fans of Mac subportables. FAQ at <http://www.themacintoshguy.com/lists/DuoListFAQ.shtml> Be sure to visit Mac2400! <http://www.sineware.com/mac2400> X-Router | Share your DSL or cable modem between multiple computers! Dr. Bott | <http://www.drbott.com/prod/MIH120.html> PowerBook Guy is | Click here! Everything PowerBook! | http://www.powerbookguy.com
