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TOPIC: UDP broadcast forwarding

UDP broadcast forwarding 10 years 1 month ago #26763

Hi everyone.

I have a question about forwarding and UDP broadcasts.

I have two subnets:
192.168.0.0/24 and 102.172.97.0/24.

One server (192.168.0.140) is broadcasting some information to 192.168.0.255:5018.

I would like to forward this broadcast to 102.172.97.255:5018. (Basically change the destination IP and route the packet...)

I have tried several routing solutions on a computer with two network adapters between both subnets without success. If possible, I would like to stick to open source/free solutions.

Would anyone be kind enough to tell me what are the possible solutions to this problem if any?

Thanks a lot.

Falahdab

Re: UDP broadcast forwarding 10 years 1 month ago #26769

  • S0lo
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On a cisco router you would be able to do that using the "ip helper-address" command:

www.cisco.com/univercd/cc/td/doc/product...sr83/rpc_r/48383.htm

Check also the "ip forward-protocol" command. If you want to do it on a PC, search for some thing called "Relay Agent" or "DHCP Relay Agent". It's usually used to forward DHCP broadcasts but you might be able to configure it for general usage. I think Windows server has a relay agent too.
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