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  •  hcsteve
      hcsteve
Multicast stub routing + NAT
#1
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Joined: 2011/12/23
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I have an application using multicast routing on a Cisco router that I'm trying to move to a CentOS-based router instead. The current application (VoIP paging) works as follows:

* VoIP PBX sends a unicast UDP stream to a particular unicast IP address and port on the router
* Router NATs the destination to a multicast address (224.168.168.168)
* Router sends the multicast stream to a group of VoIP phones which are attached to the router via a layer-2 ethernet switch

This works fine on the Cisco router by configuring "ip igmp static-group 224.168.168.168" on the ethernet port connected to the phones. I'm trying to figure out how to accomplish the same thing in CentOS. Any ideas?
Posted on: 2011/12/23 15:21
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