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T1457: add igmp proxy

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rebortg 2019-07-23 18:48:26 +02:00
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commit e4df3fc97c
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docs/routing/igmp-proxy.rst Normal file
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.. _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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docs/routing/index.rst
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static static
mss-clamp mss-clamp
routing-policy routing-policy
igmp-proxy