User space Port trigger function
To use port trigger Linux user space function prerequesite is:
1.tcpdump
2.iptables support for port forward
3.nice
This assume :
Your system has bridge br0 for LAN WAN or internet facing interface eth2.4 or 2.5 or eth3 Usage:
nice --20 porttrigger trig_rule_no trigger_port fwd_port
Example (port): porttrigger 1 6565 8585
Example (port range): porttrigger 2 6565-6570 8585-8590
Example (port range): porttrigger 3 6565-6570 8585
Example (port range): porttrigger 4 6565 8585-8590
Trigger rule number has to be unique number amount all port trigger setup.