Server #1 192.168.1.1 UDP port 516 receiving traffic from multiple
hosts. I want to make another application also receive the "raw"
incoming traffic to UDP port 2000 without any configuration change to
the syslog application with following attempt:
1. In server #1, setup TEE to replicate the traffic to server #2 port 516
iptables -A PREROUTING -t mangle -i eth0 -p udp --dport 516 -j
TEE --gateway 192.168.1.2
2. In server #2, setup port forwarding from port 516 --> server #1 port 2000
iptables -A PREROUTING -t nat -i eth0 -p udp -d 192.168.1.1
--dport 516 -j DNAT --to-destination 192.168.1.1:2000
The configuration works perfectly. But it does not work without the
help of server #2.
Can anyone advice how to make both rules works only with server #1 ?
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