NAT to a broadcast addess using iptables?



Hi,

I'm an iptables newbie. I have a busybox router that uses iptables
1.2.8. (Sorry if I have the wrong ng, but this seems to be where the
iptables gurus are!) I have a requirement to be able to send a packet
across the internet and have it natted and forwarded to a directed
broadcast address on the internal lan, e.g. UDP 213.1.2.3:9 -->
10.1.2.255/24:9. I've added the PREROUTING and FORWARDING rules which
nat and foward to the broadcast address but a sniffer shows the packet
not arriving. If I change both rules to a specific host (e.g.
10.1.2.1), it works fine. Is what I'm trying to do possible? (Yes, I
know it's insane, but is it possible!?)

TIA

.



Relevant Pages

  • Google Summer of Code 2009: Student applies to create a Better IPTables Management Tool
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    (Linux-Kernel)
  • Re: Doubts with iptables (or ipchains)
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    (comp.os.linux.security)
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    (comp.os.linux.security)
  • iptables: state & forward confusion
    ... $iptables -F -t mangle ... # set a default policy to allow established & related ... packet forwarded to eth1 or eth2...accept those that are explicitly ... forwarded say for outbound web requests and returning responses? ...
    (comp.os.linux.security)
  • Re: iptables: blocking network access for certain UIDs gives error.
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