Commit 9de1fcdf authored by Mauro Carvalho Chehab's avatar Mauro Carvalho Chehab Committed by David S. Miller
Browse files

docs: networking: convert ip_dynaddr.txt to ReST 



- 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: default avatarMauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 7cdb2540

Documentation/networking/index.rst

+1 −0
Original line number Diff line number Diff line
@@ -66,6 +66,7 @@ Contents: 
   hinic

   ila

   ipddp

   ip_dynaddr



.. only::  subproject and html

Documentation/networking/ip_dynaddr.txt→Documentation/networking/ip_dynaddr.rst

+20 −9
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.. 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:



  To enable verbose mode::



    # echo 2 > /proc/sys/net/ipv4/ip_dynaddr

  To disable (default)



  To disable (default)::



     # echo 0 > /proc/sys/net/ipv4/ip_dynaddr



Enjoy!



-- Juanjo  <jjciarla@raiz.uncu.edu.ar>
 
Juanjo  <jjciarla@raiz.uncu.edu.ar>

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