User manual

Confidential, the whole present document is the sole property of Maestro Wireless
Solutions Limited.
4.7 Port Forwarding (DNAT)
The Maestro 3GIR supports TCP port forwarding (also called DNAT). It enables the Maestro
3GIR to forward TCP and UDP connections received on its WAN IP to be forwarded to
internal devices on the internal network.
In the above example, port 25 (SMTP) on the outside is forwarded to 192.168.210.2, port 25
on the inside. This allows you to host web servers, mail servers, etc. on the internal network
and is ideal for remotely maintaining servers.
Click Add to add the DNAT entry to the DNAT table.
Click on the Remove link to remove the appropriate entry.