To remote into my IC-7300MK2, I connected its LAN port to my AREDN hAP, then used wfview (a free and open source program), to access it anywhere on the AREDN mesh.

The settings I had to get from the radio were:

• Hostname
• Control Port
• Username
• Password

This page lists settings that should be adjusted in the radio to get better results. I haven't played with that yet.