From 1a513588bfab20f5795c95a791dfc6e261819ac5 Mon Sep 17 00:00:00 2001 From: chao an Date: Thu, 12 Jan 2023 11:39:22 +0800 Subject: [PATCH] net/mld: update help manual for mld router Signed-off-by: chao an --- net/mld/Kconfig | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/net/mld/Kconfig b/net/mld/Kconfig index f7512e1c32..5e105a149a 100644 --- a/net/mld/Kconfig +++ b/net/mld/Kconfig @@ -20,7 +20,15 @@ config NET_MLD_ROUTER default n ---help--- Enables a few hooks that will be needed for router support in the - future. Not yet ready for prime time. + future. Use IPv6 multicast routers to discover the presence of multicast + listeners (nodes configured to receive IPv6 multicast packets) + on its directly attached links and to discover which multicast packets + are of interest to neighboring nodes. All IPv6 multicast routers that + run MLD on the same subnet can monitor MLD listener report messages + (often called reports) from hosts. However, only one router can act as + the MLD querier to send MLD query messages (often called queries). + A querier election mechanism determines which router acts as the MLD + querier on the subnet. config NET_MLD_DEBUG bool "Force MLD debug"