Port Forwarding

When using SMS connection type, SMS is used to trigger the communicator module to launch a connection to the DLS IV computer. To accept these SMS initiated incoming connections to DLS IV, the local network (DLS IV's local network) must be setup accordingly. A port must be opened for TCP traffic to be passed through to the DLS IV computer.

First, set your PC's network configuration to have a STATIC IP. The port forwarding required by DLS IV will not work well with DHCP (dynamic IP).

Next, choose a port to be opened on your router/firewall. We recommend using a higher port number, 30000 or higher, to reduce the chance of conflicting with another application. This port is your PUBLIC PORT. DLS IV is configured to be listening on port 51004 of the PC at ALL times. This will be your PRIVATE PORT.

Now, the router/firewall can be configured.

IP = your static IP

PUBLIC Port = the port you chose

PRIVATE Port = 51004

Protocol = TCP

The last step, if necessary, is to open Port 51004 on the PC’s firewall.

That’s it. You should be ready to use the SMS connection type to remotely program your unit.

It’s important to note that Connect24 will need to know the PUBLIC PORT. When creating an account, be sure to include your PUBLIC IP and the PUBLIC PORT.