On Wednesday 14 July 2004 6:57 am, George Alexandru Dragoi wrote:
> One more thingg, you'll have to set ip_forward to 1
Won't help. The packets addressed to 192.168.1.255 have already reached
their destination, therefore the routing table won't forward them further
through the netfilter machine.
Regards,
Antony.
> On Tue, 13 Jul 2004 22:02:47 -0700 (PDT), Tom Thumb
>
> <tomthumb888@xxxxxxxxx> wrote:
> > Hi,
> >
> > Can I use iptables to forward UDP broadcast packets on
> > the same subnet and interface but just change the
> > source IP?
> >
> > That is, the forwarding machine is 192.168.1.5, with
> > mask 255.255.255.0 and has a single NIC.
> >
> > A machine with IP 192.168.1.6 with the same mask sends
> > a UDP broadcast to 192.168.1.255.
> >
> > The forwarding machine receives this packet. Can it be
> > configured to resend it out on the same interface that
> > it received it on (its only interface) and just change
> > the source IP to be a 3rd address, like 192.168.1.7,
> > but also as a UDP broadcast to 192.168.1.255?
> >
> > Is there any way to do this without adding a physical
> > NIC? Do I need to add a "virtual" NIC to do it? How?
> >
> > Thanks
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