netdev - [PATCH net-next 8/8] ipv6: add documentation for stable_secret, idgen_delay and idgen

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Message-Id: <6da46ae2f76bf9aca41bd09ea7f284b75955637c.1427129103.git.hannes@stressinduktion.org>
Date:	Mon, 23 Mar 2015 18:02:02 +0100
From:	Hannes Frederic Sowa <hannes@...essinduktion.org>
To:	netdev@...r.kernel.org
Cc:	ek@...gle.com, fgont@...networks.com, lorenzo@...gle.com,
	hideaki.yoshifuji@...aclelinux.com
Subject: [PATCH net-next 8/8] ipv6: add documentation for stable_secret, idgen_delay and idgen_retries knobs

Cc: Erik Kline <ek@...gle.com>
Cc: Fernando Gont <fgont@...networks.com>
Cc: Lorenzo Colitti <lorenzo@...gle.com>
Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@...aclelinux.com>
Signed-off-by: Hannes Frederic Sowa <hannes@...essinduktion.org>
---
 Documentation/networking/ip-sysctl.txt | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index 6c07c2b..6825247 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -1220,6 +1220,17 @@ anycast_src_echo_reply - BOOLEAN
 	FALSE: disabled
 	Default: FALSE
 
+idgen_delay - INTEGER
+	Controls the delay in seconds after which time to retry
+	privacy stable address generation if a DAD conflict is
+	detected.
+	Default: 1 (as specified in RFC7212)
+
+idgen_retries - INTEGER
+	Controls the number of retries to generate a stable privacy
+	address if a DAD conflict is detected.
+	Default: 3 (as specified in RFC7212)
+
 mld_qrv - INTEGER
 	Controls the MLD query robustness variable (see RFC3810 9.1).
 	Default: 2 (as specified by RFC3810 9.1)
@@ -1540,6 +1551,20 @@ use_optimistic - BOOLEAN
 		0: disabled (default)
 		1: enabled
 
+stable_secret - IPv6 address
+	This IPv6 address will be used as a secret to generate IPv6
+	addresses for link-local addresses and autoconfigured
+	ones. All addresses generated after setting this secret will
+	be stable privacy ones by default. This can be changed via the
+	addrgenmode ip-link. conf/default/stable_secret is used as the
+	secret for the namespace, the interface specific ones can
+	overwrite that. Writes to conf/all/stable_secret are refused.
+
+	It is recommended to generate this secret during installation
+	of a system and keep it stable after that.
+
+	By default the stable secret is unset.
+
 icmp/*:
 ratelimit - INTEGER
 	Limit the maximal rates for sending ICMPv6 packets.
-- 
2.1.0

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