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SubjectRe: RS485 communication
Cigol C writes:

> i) Linux PPP interface with IP: Registration, Packet send/receive/close
> ii) Linux PPP interface with serial driver:Registration, Packet send/receive/close

See Documentation/networking/ppp_generic.txt in any recent linux
kernel source tree.

> iii) Linux PPP server configuration and initial sequence of working. i.e. associating a IP address with serial device and ppp0

You will need a plugin for pppd that provides a new channel type. See
the rp-pppoe plugin for an example of how this is done.

However, given that rs485 is multidrop, I really don't think PPP is
the best protocol to use.
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