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Whatever's talking directly (at layer three) to the provider gets the address the provider assigns, which is usually global. Though, if you connect a Linux box directly to a modem, then that's it.


It is not generally possible to send AT commands to a modem while a call is in progress. This applies to all AT-compatible modems, "regular" dial-up modems and mobile phone modems alike, and it has nothing to do with PPP. By the way, a point of terminology: PPP sessions are not mounted. Mouting and umounting are terms that apply to filesystems. There are ...


Believe it's compiled into the kernel. grep CONFIG_SERIAL_8250_RUNTIME_UARTS /boot/config* CONFIG_SERIAL_8250_RUNTIME_UARTS=32 See Serial Tips And Miscellany Number of Serial Ports Supported If you have more than 4 (or possibly 2) serial ports, then you must insure that the kernel knows this. It can be done by configuring the kernel when compiling ...

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