> I have experience in using many different modems to get on line with > various DOS internet applications. So far I have found that any > functional real modem, even very old 2400 bps. modems, will work with > EPPPD.
> I have encountered several real modems that will work fine with EPPPD, > but they will not work at all with LSppp. > Has anyone discovered any particular characteristics or features present > or lacking in real modems that are incompatible with LSppp? One thing > I have discovered about modems that are incompatible with Lsppp is that > the incompatibility problem seems to be unrelated to the brand or the > manufacturer, or the modem speed, or the date of manufacture. > BTW, a common error message returned by LSppp when it fails to connect > when using an incompatible modem is "get a Hayes modem". I have found > that using a Hayes modem does not guarantee compatibility with LSppp. > I have a genuine Hayes modem, being an external 9600 bps. modem, that > works fine with EPPPD, but it won't work with LSppp. > Sam Heywood My experience with modems is limited, I've used only two with DOS for the Internet, both are 56K. First one is Diamond SupraExpress 56i internal ISA, where I applied the optional jumpers for COM4 (base 0x2e8) IRQ 5 because the modem it replaced used that port-IRQ combination. Jumpers could be omitted if the user wants Plug 'n Pray. Second modem is USRobotics internal PCI modem, OEM model 2976, a real modem. EPPPD and LSPPP both worked with the Diamond modem. EPPPD does not work at all with the USRobotics modem. I can hear dialing with CHAT or Arachne's MINITERM, but EPPPD can't make the IP connection. At first LSPPP worked with the "regular" configuration, where LSPPP dialed, but then a change in the Bluegrass Net portmaster rendered this unworkable. LSPPP still dialed but couldn't negotiate the IP connection. This was also true in the older computer with the Diamond modem, though EPPPD still worked there. I made a new setup for LSPPP, taking CHAT0 from the DOSPPPD and using that to dial before running LSPPP. That worked. I used CHAT0 like Marc Ressl's Netdial, though Netdial does not work with the USRobotics modem. Sam Heywood, on those modems that don't work at all with LSPPP, maybe you could use CHAT0 or possibly Netdial in place of LSPPP's dialer, and then see if LSPPP will complete the IP connection.
