Could you please provide example? If I am thinking correctly:(for the record, v7 can change destination in output chain, no clever loops required)
Yes I have it now, with CHR installed with public, static IP.a. rent a server (AWS or oracle)
/ip firewall nat add chain=output dst-address=x.x.x.x protocol=udp dst-port=1701 action=dst-nat to-ports=12345
If you have one, why do you need to change port?Yes I have it now, with CHR installed with public, static IP.
... because ISP where client is installed blocks 1701/udp. If I will change port on client I must change it on server too. So the answer is: both.If you have one, why do you need to change port?
And if you do, which port do you want to change - the one at server side (CHR) or the one at client side (your hAP lite)?