Forwarding specific udp broadcasts between ip networks
I'm trying determine what would be the best way to forward some specific udp broadcast traffic from one subnet to another and vice versa on the same router. I can't use ip helper because it is already configured to enable dhcp traffic and I do not want this particular udp traffic forwarded all the way across my network to the dhcp server as a by product of getting where it needs to go.
The network elements generating this traffic for example, address their broadcasts to 192.168.110.255 with a hardware address of all FF. I need to route this traffic to be broadcast on a different interface/subnet on the same router so that the NEs on the two different IP networks can communicate with each other via these broadcasts. This is just needed as a temporary solution until all of the network elements can be moved onto the same subnet.
If I can't use ip-helper what is the path of least resistance to get this accomplished? Multi-cast helper perhaps? Can I use directed broadcast forwarding even though the broadcasts are addressed to their local IP subnet?
Re: Forwarding specific udp broadcasts between ip networks
If you do not want to use ip helper-address then I do not believe that there is any router based solution for your problem. It might be possible to write something for some device on your network that would listen for these broadcasts, process them, and build broadcasts with destination address in the other subnet. But that would be an end station solution not a router solution.
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.