Connecting DNP3 Device First Time - No ports opening

[pturmel]

Funny you should ask in this week:

DNP3 port 20000 for incoming connections

I'm new to ignition so apologies if this is a dumb question. We need to use DNP3 with unsolicited events as our remote devices are not on fixed IP addresses so we are reliant on them to initiate the connection. Using netstat -an on the gateway machine I can't see port 20000 listed as listening so figure I must be missing something. Grateful for any advice on this? Cheers, Martin

TL/DR: No.