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+.. _ripng:
+
+*****
+RIPng
+*****
+
+*ripngd* supports the RIPng protocol as described in :rfc:`2080`. It's an IPv6
+reincarnation of the RIP protocol.
+
+.. _invoking-ripngd:
+
+Invoking ripngd
+===============
+
+There are no `ripngd` specific invocation options. Common options can be
+specified (:ref:`common-invocation-options`).
+
+.. _ripngd-configuration:
+
+ripngd Configuration
+====================
+
+Currently ripngd supports the following commands:
+
+.. clicmd:: router ripng [vrf NAME]
+
+   Enable RIPng.
+
+.. clicmd:: network NETWORK
+
+   Set RIPng enabled interface by NETWORK.
+
+.. clicmd:: network IFNAME
+
+   Set RIPng enabled interface by IFNAME.
+
+.. clicmd:: route NETWORK
+
+   Set RIPng static routing announcement of NETWORK.
+
+.. clicmd:: allow-ecmp [1-MULTIPATH_NUM]
+
+   Control how many ECMP paths RIPng can inject for the same prefix. If specified
+   without a number, a maximum is taken (compiled with ``--enable-multipath``).
+
+.. _ripngd-terminal-mode-commands:
+
+ripngd Terminal Mode Commands
+=============================
+
+.. clicmd:: show ipv6 ripng [vrf NAME] status
+
+.. clicmd:: show debugging ripng
+
+.. clicmd:: debug ripng events
+
+.. clicmd:: debug ripng packet
+
+.. clicmd:: debug ripng zebra
+
+
+ripngd Filtering Commands
+=========================
+
+RIPng routes can be filtered by a distribute-list.
+
+.. clicmd:: distribute-list [prefix] LIST <in|out> IFNAME
+
+   You can apply access lists to the interface with a `distribute-list` command.
+   If prefix is specified LIST is a prefix-list.  If prefix is not specified
+   then LIST is the access list name.  `in` specifies packets being received,
+   and `out` specifies outgoing packets.  Finally if an interface is specified
+   it will be applied against a specific interface.
+
+   The ``distribute-list`` command can be used to filter the RIPNG path.
+   ``distribute-list`` can apply access-lists to a chosen interface.  First, one
+   should specify the access-list. Next, the name of the access-list is used in
+   the distribute-list command. For example, in the following configuration
+   ``eth0`` will permit only the paths that match the route 10.0.0.0/8
+
+   .. code-block:: frr
+
+      !
+      router ripng
+       distribute-list private in eth0
+      !
+      access-list private permit 10 10.0.0.0/8
+      access-list private deny any
+      !
+
+
+   `distribute-list` can be applied to both incoming and outgoing data.
+
+
+.. _ripng-route-map:
+
+RIPng route-map
+===============
+
+Usage of *ripngd*'s route-map support.
+
+Route-map statement (:ref:`route-map`) is needed to use route-map
+functionality.
+
+.. clicmd:: match interface WORD
+
+   This command match to incoming interface. Notation of this match is
+   different from Cisco. Cisco uses a list of interfaces - NAME1 NAME2 ...
+   NAMEN. Ripngd allows only one name (maybe will change in the future). Next -
+   Cisco means interface which includes next-hop of routes (it is somewhat
+   similar to "ipv6 next-hop" statement). Ripngd means interface where this route
+   will be sent. This difference is because "next-hop" of same routes which
+   sends to different interfaces must be different.
+
+.. clicmd:: match ipv6 address WORD
+
+.. clicmd:: match ipv6 address prefix-list WORD
+
+   Match if route destination is permitted by access-list/prefix-list.
+
+.. clicmd:: match metric (0-4294967295)
+
+   This command match to the metric value of RIPng updates. For other protocol
+   compatibility metric range is shown as (0-4294967295). But for RIPng protocol
+   only the value range (0-16) make sense.
+
+.. clicmd:: set ipv6 next-hop local IPV6_ADDRESS
+
+   Set the link-local IPv6 nexthop address.
+
+.. clicmd:: set metric (1-16)
+
+   Set a metric for matched route when sending announcement. The metric value
+   range is very large for compatibility with other protocols. For RIPng, valid
+   metric values are from 1 to 16.
+
+.. clicmd:: set tag (1-4294967295)
+
+   Set a tag on the matched route.
+
+
+Sample configuration
+====================
+
+.. code-block:: frr
+
+   debug ripng events
+   debug ripng packet
+
+   router ripng
+    network sit1
+    route 3ffe:506::0/32
+    distribute-list local-only out sit1
+
+   ipv6 access-list local-only permit 3ffe:506::0/32
+   ipv6 access-list local-only deny any