Automatic dst-nat rule based on internal IP assignments

RouterOS Beginner Basics
1

I’ve searched every term combination I can think of but feel free to link any topics I missed!

I am setting up an NMS with SNMP (LibreNMS) that cannot have a proxy/remote polling setup, therefore I am using NAT rules to assign ports to internal 192.168.0.X and 10.0.0.X addresses (all port 161 for SNMP).

Curious if anyone can point me in the direction or has experience in creating a rule that would automatically create a NAT rule, or be able to translate, ports in the 20000-65535 range to internal addresses.

I can create a web script that would automatically take an IP range, assign ports, then spit out an uploadable MT script…but I like things to be automated and more efficient.

2

You´re trying to send SNMP traps over WAN? That´s a very bad idea in the first place, set up a VPN.