Broadcast UDP over VPN

Posted by ibmz on Server Fault See other posts from Server Fault or by ibmz
Published on 2010-04-12T06:55:43Z Indexed on 2010/04/12 7:03 UTC
Read the original article Hit count: 430

Filed under:

openvpn

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iptables

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udp

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broadcast

I have OpenVPN configured and have 5 dd-wrt router clients. I would like the machines on those routers to be-able to UDP Broadcast across all 5 networks.

I cannot bridge the interfaces(to my knowledge) because each router needs to be able to operate on its own should the VPN connection die (dhcp needs to work).

currently each router has its own /24 (eg 192.168.1.x) network. Is there a way to use IPTables to mangle the udp and forward them to all VPN Clients?

To summarize i need
1)to UDP broadcast to all routers and their clients
2)for all routers to be able to operate independently should the VPN go down

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