Hi List,
I have two interfaces eth0 and eth1 on my machine.
My machine has eth0 = 192.168.1.100 and eth1 = 172.16.1.100
The scenario is that I will be receiving packets at port 10000 on eth0
of my machine. I do not know from which IP the packets are being
received (Can be any machine - I do not need to apply a source address
matching rule).
I need to forward these packets to another machine B that I do so with
this rule:
iptables -t nat -I PREROUTING -i eth0 -p udp \
--dport 10000 -j DNAT --to-destination 172.16.1.200
Note that I have not added any -s option to the rule for source
address matching.
This also works properly. Now I need to _know_ the source IP and
source Port of the packets that are being received at port 10000 on
eth0. (For example to send some data back to the _same_machine_ that
is sending packets at port 10000)
How do I achieve this?
Best Regards,
Elison
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