Re: RF modem PPP support

Eduardo Marques wrote:
Hello,

Can anyone point me to information on setting up PPP for RF modems
(radio-frequency spread spectrum modems), or any other protocols for
enabling TCP/IP over RF modems.

How do your RF modems connect to the PC?

If they use serial ports, then it should be no different from any other serial port modem as far as PPP is concerned.

If they're on PCI cards that have normal serial UARTs (16550s or similar), then it should be just like using any other internal real modem.

If they're on PCI cards without serial UARTs, then you'll need hardware-specific drivers before you even think about PPP. (Similar to winmodems.)

If they're USB devices, you might have luck with the generic "ACM" driver for USB modems or you might need hardware-specific drivers, depending on the design of the hardware you have.

If they're Ethernet-connected, have a look at the PPPoE stuff commonly used for DSL. AFAICT, the PPPoE code doesn't care whether it's a DSL modem or an RF modem (or whatever else) connected to the Ethernet port. With that hardware, however, there might not be any need for PPP. Just treat the RF link like any other LAN connection.

Those are the only connection types I've seen for RF modems. If yours connect to the PC in some other way, say so.

IMHO, external serial port (not USB) would be the easiest to get working.
.

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