1 files changed, 3 insertions, 1 deletions

diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index 7185e4c41e59..ec5de02f543f 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -1043,7 +1043,9 @@ max_addresses - INTEGER
         Default: 16
 
 disable_ipv6 - BOOLEAN
-        Disable IPv6 operation.
+        Disable IPv6 operation.  If accept_dad is set to 2, this value
+        will be dynamically set to TRUE if DAD fails for the link-local
+        address.
         Default: FALSE (enable IPv6 operation)
 
 accept_dad - INTEGER