From 56f9b9bf15189206f5d124b2bb96fb21539017c6 Mon Sep 17 00:00:00 2001 From: Donald Sharp Date: Wed, 22 Jan 2020 21:46:46 -0500 Subject: [PATCH] doc: Update ospf unnumbered documentation Update the ospf unnumbered documentation to reflect how to get it working under linux. Signed-off-by: Donald Sharp --- doc/user/ospfd.rst | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/doc/user/ospfd.rst b/doc/user/ospfd.rst index 3772cf9556..e6ff59d27c 100644 --- a/doc/user/ospfd.rst +++ b/doc/user/ospfd.rst @@ -662,6 +662,12 @@ Interfaces .. index:: ip ospf network (broadcast|non-broadcast|point-to-multipoint|point-to-point) .. clicmd:: ip ospf network (broadcast|non-broadcast|point-to-multipoint|point-to-point) + When configuring a point-to-point network on an interface and the interface + has a /32 address associated with then OSPF will treat the interface + as being `unnumbered`. If you are doing this you *must* set the + net.ipv4.conf..rp_filter value to 0. In order for + the ospf multicast packets to be delivered by the kernel. + .. index:: no ip ospf network .. clicmd:: no ip ospf network