.. _example_protocols_ripng_distribute-list_distribute-listinterface:

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Distribute-List Interface
#########################

Test to verify RIPng **distribute-list interface** configuration for route filtering.
The ``set protocols ripng distribute-list interface <itf> prefix-list in <list>`` command filters
incoming RIPng routes based on the interface they are received on and a prefix-list. The
``set protocols ripng distribute-list interface <itf> prefix-list out <list>`` command filters
outgoing RIPng routes on a specific interface. These commands provide granular control over
route acceptance and advertisement on a per-interface basis. The first test case validates
inbound filtering with three routers, while the second test case validates outbound filtering
with two routers using multiple dummy interfaces.

**********************************************
Test RIPng Distribute-List Interface Filtering
**********************************************

Description
===========

Test RIPng **distribute-list interface in** filters incoming routes based on interface and prefix-list.
DUT0 acts as the middle router with two neighbors. DUT1 connects via eth0 and redistributes the
2001:db8:100::/64 network into RIPng. DUT2 connects via eth1 and redistributes the 2001:db8:200::/64
network into RIPng. DUT0 applies the same prefix-list FILTER-ROUTES on both interfaces, which permits
2001:db8:100::/64 and denies 2001:db8:200::/64. The test verifies that DUT0 learns the route from
DUT1 via eth0 but rejects the route from DUT2 via eth1 due to the prefix-list filtering rules.

Scenario
========

.. include:: distribute-listinterface/testripngdistribute-listinterfacefiltering

.. raw:: html

  <hr>

**************************************************
Test RIPng Distribute-List Interface OUT Filtering
**************************************************

Description
===========

Test RIPng **distribute-list interface out** filters outgoing routes on specific interfaces.
DUT0 has two dummy interfaces with networks 2001:db8:100::/64 and 2001:db8:200::/64. DUT0 is
configured with an outgoing distribute-list on eth0 that permits 2001:db8:100::/64 and denies
2001:db8:200::/64. The test verifies that DUT1 receives only the permitted route.

Scenario
========

.. include:: distribute-listinterface/testripngdistribute-listinterfaceoutfiltering

.. raw:: html

  <hr>