Messages in this thread | | | Date | Sat, 03 Mar 2001 12:41:44 -0500 | From | Jeremy Jackson <> | Subject | Re: Forwarding broadcast traffic |
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Jon Masters wrote:
> Hello, > I have a brain-dead application here which relies on broadcast > traffic for client/server discovery and I have a question with regard > to forwarding broadcast traffic.
try bridging instead if ip forwarding. use netfilter too if you want
> > > A small part of my local LAN looks like this: > > REST OF LAN > | > | (router eth1) > | > masquerading > router (kernel 2.2.14) > | > | (router eth0) > | > desktop (private IP) > boxen (kernel 2.4.2) > > * upgrading the router is not a problem[0]. > > I wish to have the router forward certain broadcast traffic coming > from either side out to the other (as well as itself). > > e.g. on desktop a broadcast udp packet (with a specified port) needs to > go not only to itself and the router but also the "REST OF LAN" part > too - and vice versa. Removing the router is not an option. > > I know this isn't a *nice* idea and ordinarily I wouldn't be jumping up > and down suggesting one throws broadcast traffic around however I need > to do this for various reasons and the solution appears to be > non-obvious at least to me[1]. > > I have considered the idea of creating a transparent bridge however I > would really rather not do that here for various reasons. > > I have posted this message to groups elsewhere however I have not yet > had any useful responses beyond basic instruction of IP forwarding, > etc. which is not what I need here :P > > Any ideas? I think this one has come up before but I could not find a > helpful answer in my archives. > > Appreciate your time, > --jcm > > P.S. My lkml feed at home is great but here it is not so could you > please CC me on replies thanks. > > [0] Yeah, yeah, I know 2.2.14 is old but it's an old router and when I > move that box over to Debian I'll upgrade the kernel at the same > time :P > [1] either due to general stupidity or tiredness, or both. > -
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