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[net-next,v2,8/8] ipv6: add documentation for stable_secret, idgen_delay and idgen_retries knobs

Message ID 435310c2378c62a380e125cd1f05a08a7081847f.1427149704.git.hannes@stressinduktion.org
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

Hannes Frederic Sowa March 23, 2015, 10:36 p.m. UTC
Cc: Erik Kline <ek@google.com>
Cc: Fernando Gont <fgont@si6networks.com>
Cc: Lorenzo Colitti <lorenzo@google.com>
Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
---
 Documentation/networking/ip-sysctl.txt | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
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Patch

diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index 6c07c2b..071fb18 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 RFC7217)
+
+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 RFC7217)
+
 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.