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Diffstat (limited to 'docs/services/mdns-repeater.rst')
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diff --git a/docs/services/mdns-repeater.rst b/docs/services/mdns-repeater.rst new file mode 100644 index 00000000..0afdc90a --- /dev/null +++ b/docs/services/mdns-repeater.rst @@ -0,0 +1,30 @@ +mDNS Repeater +------------- + +Starting with VyOS 1.2 a `Multicast DNS`_ (mDNS) repeater functionality is +provided. + +Multicast DNS uses the 224.0.0.51 address, which is "administratively scoped" +and does not leave the subnet. It re-broadcast mDNS packets from one interface +to other interfaces. This enables support for e.g. Apple Airplay devices across +multiple VLANs. + +To enable mDNS repeater you need to configure at least two interfaces. To re- +broadcast all mDNS packets from `eth0` to `eth1` and vice versa run: + +.. code-block:: sh + + set service mdns repeater interface eth0 + set service mdns repeater interface eth1 + +mDNS repeater can be temporarily disabled without deleting the service using + +.. code-block:: sh + + set service mdns repeater disable + +.. note:: You can not run this in a VRRP setup, if multiple mDNS repeaters + are launched in a subnet you will experience the mDNS packet storm death! + + +.. _`Multicast DNS`: https://en.wikipedia.org/wiki/Multicast_DNS |