From adc176c5472214971d77c1a61c83db9b01e9cdc7 Mon Sep 17 00:00:00 2001 From: Erik Nordmark Date: Fri, 2 Dec 2016 14:00:08 -0800 Subject: ipv6 addrconf: Implemented enhanced DAD (RFC7527) Implemented RFC7527 Enhanced DAD. IPv6 duplicate address detection can fail if there is some temporary loopback of Ethernet frames. RFC7527 solves this by including a random nonce in the NS messages used for DAD, and if an NS is received with the same nonce it is assumed to be a looped back DAD probe and is ignored. RFC7527 is enabled by default. Can be disabled by setting both of conf/{all,interface}/enhanced_dad to zero. Signed-off-by: Erik Nordmark Signed-off-by: Bob Gilligan Reviewed-by: Hannes Frederic Sowa Signed-off-by: David S. Miller --- include/uapi/linux/ipv6.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/uapi/linux') diff --git a/include/uapi/linux/ipv6.h b/include/uapi/linux/ipv6.h index 53561be1ac21..eaf65dc82e22 100644 --- a/include/uapi/linux/ipv6.h +++ b/include/uapi/linux/ipv6.h @@ -181,6 +181,7 @@ enum { DEVCONF_RTR_SOLICIT_MAX_INTERVAL, DEVCONF_SEG6_ENABLED, DEVCONF_SEG6_REQUIRE_HMAC, + DEVCONF_ENHANCED_DAD, DEVCONF_MAX }; -- cgit v1.2.3