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Diffstat (limited to 'docs/routing/igmp-proxy.rst')
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diff --git a/docs/routing/igmp-proxy.rst b/docs/routing/igmp-proxy.rst new file mode 100644 index 00000000..fd16892d --- /dev/null +++ b/docs/routing/igmp-proxy.rst @@ -0,0 +1,26 @@ +.. _igmp_proxy: + +IGMP Proxy +========== + +Internet Group Management Protocol (IGMP) + +A IGMP Proxy to send IGMP host messages on behalf of a connected client. +The configuration must define one upstream interface, and one or more downstream interfaces. +If multicast traffic originates outside the upstream subnet, the "alt-subnet" option can be used in order to define legal multicast sources. + +simple example: +--------------- + +Interface eth1 LAN is behind NAT. In order to subscribe 10.0.0.0/23 subnet multicast which is in eth0 WAN we need igmp-proxy. + +.. code-block:: sh + + # show protocols igmp-proxy + interface eth0 { + alt-subnet 10.0.0.0/23 + role upstream + } + interface eth1 { + role downstream + }
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