Rinetd and translation of real ip. Is it possible to?

Question

iptables

In general, I want to see the connected ip on the computer for which the port is forwarded.
With the help of iptables, something did not work out.
Please tell me how to forward ports without masking ip.

Answer 1

Using iptables/DNAT should help you:

# iptables -t nat -A PREROUTING -d x.x.x.x -j DNAT --to-destination y.y.y.y