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authorChristian Breunig <christian@breunig.cc>2024-02-16 08:52:05 +0100
committerMergify <37929162+mergify[bot]@users.noreply.github.com>2024-02-16 08:37:43 +0000
commitd96b22b46f393a42833ccc3395ae359dbf199016 (patch)
tree9d457993b97006ab71f4d8feeb7d96c94293484f /docs/configuration/vrf/index.rst
parente72e6c6e3d6e11b5aa98a77dd9eb629e74b7140e (diff)
downloadvyos-documentation-d96b22b46f393a42833ccc3395ae359dbf199016.tar.gz
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T6001: add option to disable next-hop-tracking resolve-via-default in VRF context
(cherry picked from commit abaf9814502b931fa81b4af9b3953880825b57f4)
Diffstat (limited to 'docs/configuration/vrf/index.rst')
-rw-r--r--docs/configuration/vrf/index.rst19
1 files changed, 19 insertions, 0 deletions
diff --git a/docs/configuration/vrf/index.rst b/docs/configuration/vrf/index.rst
index 0ead2b9d..4f230cf9 100644
--- a/docs/configuration/vrf/index.rst
+++ b/docs/configuration/vrf/index.rst
@@ -67,6 +67,25 @@ can be used to filter which routes zebra will install in the kernel.
.. note:: If you choose any as the option that will cause all protocols that
are sending routes to zebra.
+Nexthop Tracking
+----------------
+
+Nexthop tracking resolve nexthops via the default route by default. This is enabled
+by default for a traditional profile of FRR which we use. It and can be disabled if
+you do not wan't to e.g. allow BGP to peer across the default route.
+
+.. cfgcmd:: set vrf name <name> ip nht no-resolve-via-default
+
+ Do not allow IPv4 nexthop tracking to resolve via the default route. This
+ parameter is configured per-VRF, so the command is also available in the VRF
+ subnode.
+
+.. cfgcmd:: set vrf name <name> ipv6 nht no-resolve-via-default
+
+ Do not allow IPv4 nexthop tracking to resolve via the default route. This
+ parameter is configured per-VRF, so the command is also available in the VRF
+ subnode.
+
Interfaces
----------