K 10
svn:author
V 5
eugen
K 8
svn:date
V 27
2017-04-18T14:36:08.418577Z
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V 530
This patch adds NATT_EXTRA_PATCHES=natt.diff and enables only UDP encapsulation defined in RFC3948.

The natt.diff patch contains the following changes:
* added support for SADB_X_EXT_NAT_T_OAI and SADB_X_EXT_NAT_T_OAR PF_KEY messages;
* used NAT address instead of original for SAs created by racoon;
* NAT-T keep-alives now sends only by NATed host.

Tested with 11.0-STABLE after projects/ipsec merge.

PR:		217131
Submitted by:	Andrey V. Elsukov
Approved by:	VANHULLEBUS Yvan (maintainer timeout, 2 months), vsevolod (mentor)

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