docs: networking: convert ipsec.txt to ReST

Not much to be done here:

- add SPDX header;
- add a document title;
- 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 00:01:48 +02:00 committed by David S. Miller
parent aac86c887e
commit 355e656e01
2 changed files with 12 additions and 3 deletions

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@ -68,6 +68,7 @@ Contents:
ipddp
ip_dynaddr
iphase
ipsec
.. only:: subproject and html

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@ -1,12 +1,20 @@
.. SPDX-License-Identifier: GPL-2.0
=====
IPsec
=====
Here documents known IPsec corner cases which need to be keep in mind when
deploy various IPsec configuration in real world production environment.
1. IPcomp: Small IP packet won't get compressed at sender, and failed on
1. IPcomp:
Small IP packet won't get compressed at sender, and failed on
policy check on receiver.
Quote from RFC3173:
2.2. Non-Expansion Policy
Quote from RFC3173::
2.2. Non-Expansion Policy
If the total size of a compressed payload and the IPComp header, as
defined in section 3, is not smaller than the size of the original