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doc: net: ppp: Enhance PPP documentation

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Add information about supported protocols in PPP and link to
net-tools that contains information how to test ppp against
pppd running in Linux.

Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
This commit is contained in:
Jukka Rissanen 2019-08-13 13:51:44 +03:00
commit a1e7f05eaa
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doc/reference/networking/ppp.rst
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@ -22,6 +22,26 @@ is similar to how Linux implements PPP.
PPP support must be enabled at compile time by setting option PPP support must be enabled at compile time by setting option
:option:`CONFIG_NET_PPP` and :option:`CONFIG_NET_L2_PPP`. :option:`CONFIG_NET_PPP` and :option:`CONFIG_NET_L2_PPP`.
The PPP support in Zephyr 2.0 is still experimental and the implementation
supports only these protocols:
* LCP (Link Control Protocol,
`RFC1661 <https://tools.ietf.org/html/rfc1661>`__)
* HDLC (High-level data link control,
`RFC1662 <https://tools.ietf.org/html/rfc1662>`__)
* IPCP (IP Control Protocol,
`RFC1332 <https://tools.ietf.org/html/rfc1332>`__)
* IPV6CP (IPv6 Control Protocol,
`RFC5072 <https://tools.ietf.org/html/rfc5072>`__)
See also the :zephyr_file:`samples/net/sockets/echo_server/overlay-ppp.conf` See also the :zephyr_file:`samples/net/sockets/echo_server/overlay-ppp.conf`
file for configuration option examples. file for configuration option examples.
Testing
*******
See the `net-tools README`_ file for more details on how to test the Zephyr PPP
against pppd running in Linux.
.. _net-tools README:
https://github.com/zephyrproject-rtos/net-tools/blob/master/README.md#ppp-connectivity