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docs: networking: convert ip_dynaddr.txt to ReST

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- add SPDX header;
- adjust title markup;
- mark code blocks and literals as such;
- adjust identation, whitespaces and blank lines;
- add to networking/index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Mauro Carvalho Chehab 2020-04-28 00:01:46 +02:00 committed by David S. Miller
parent 7cdb25400f
commit 9de1fcdf36
2 changed files with 21 additions and 9 deletions
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1
Documentation/networking/index.rst
View File

@ -66,6 +66,7 @@ Contents:
hinic
ila
ipddp
ip_dynaddr
.. only:: subproject and html

29
Documentation/networking/ip_dynaddr.txt → Documentation/networking/ip_dynaddr.rst
View File

@ -1,10 +1,15 @@
.. SPDX-License-Identifier: GPL-2.0
==================================
IP dynamic address hack-port v0.03
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
==================================
This stuff allows diald ONESHOT connections to get established by
dynamically changing packet source address (and socket's if local procs).
It is implemented for TCP diald-box connections(1) and IP_MASQuerading(2).
If enabled[*] and forwarding interface has changed:
If enabled\ [#]_ and forwarding interface has changed:
1) Socket (and packet) source address is rewritten ON RETRANSMISSIONS
while in SYN_SENT state (diald-box processes).
2) Out-bounded MASQueraded source address changes ON OUTPUT (when
@ -12,18 +17,24 @@ If enabled[*] and forwarding interface has changed:
received by the tunnel.
This is specially helpful for auto dialup links (diald), where the
``actual'' outgoing address is unknown at the moment the link is
``actual`` outgoing address is unknown at the moment the link is
going up. So, the *same* (local AND masqueraded) connections requests that
bring the link up will be able to get established.
[*] At boot, by default no address rewriting is attempted.
To enable:
.. [#] At boot, by default no address rewriting is attempted.
To enable::
# echo 1 > /proc/sys/net/ipv4/ip_dynaddr
To enable verbose mode:
# echo 2 > /proc/sys/net/ipv4/ip_dynaddr
To disable (default)
To enable verbose mode::
# echo 2 > /proc/sys/net/ipv4/ip_dynaddr
To disable (default)::
# echo 0 > /proc/sys/net/ipv4/ip_dynaddr
Enjoy!
-- Juanjo <jjciarla@raiz.uncu.edu.ar>
Juanjo <jjciarla@raiz.uncu.edu.ar>