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-rw-r--r--Documentation/networking/ip-sysctl.txt18
1 files changed, 14 insertions, 4 deletions
diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index b3345d0fe0a6..77f4de59dc9c 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -1680,6 +1680,9 @@ accept_dad - INTEGER
2: Enable DAD, and disable IPv6 operation if MAC-based duplicate
link-local address has been found.
+ DAD operation and mode on a given interface will be selected according
+ to the maximum value of conf/{all,interface}/accept_dad.
+
force_tllao - BOOLEAN
Enable sending the target link-layer address option even when
responding to a unicast neighbor solicitation.
@@ -1727,16 +1730,23 @@ suppress_frag_ndisc - INTEGER
optimistic_dad - BOOLEAN
Whether to perform Optimistic Duplicate Address Detection (RFC 4429).
- 0: disabled (default)
- 1: enabled
+ 0: disabled (default)
+ 1: enabled
+
+ Optimistic Duplicate Address Detection for the interface will be enabled
+ if at least one of conf/{all,interface}/optimistic_dad is set to 1,
+ it will be disabled otherwise.
use_optimistic - BOOLEAN
If enabled, do not classify optimistic addresses as deprecated during
source address selection. Preferred addresses will still be chosen
before optimistic addresses, subject to other ranking in the source
address selection algorithm.
- 0: disabled (default)
- 1: enabled
+ 0: disabled (default)
+ 1: enabled
+
+ This will be enabled if at least one of
+ conf/{all,interface}/use_optimistic is set to 1, disabled otherwise.
stable_secret - IPv6 address
This IPv6 address will be used as a secret to generate IPv6