nmap is just a test tool, you can run it like this:
nmap -sU -g {source port} -p {server port} {server ip}
But here you can probably find a solution for your specific use case: Custom firewall rule to route one lan ip to wan2 - #7 by ne20002
nmap is just a test tool, you can run it like this:
nmap -sU -g {source port} -p {server port} {server ip}
But here you can probably find a solution for your specific use case: Custom firewall rule to route one lan ip to wan2 - #7 by ne20002