[dracon]

1) Set a static IP on the Ethernet (not wireless) interface - I use 192.168.254.1
2) Install DHCP server (www.dhcpserver.de)
3) Configure DHCP server to listen on the Ethernet interface
4) Click on the buttons to set firewall ports and run as service
5) Connect up your ICOM and it'll get a DHCP address from the DHCP server

So what IP-Pool did you set in DHCP Server programm?
If you set nothing it will be 0.0.0.1 - 255

I left it as is. Since it's a direct connection it doesn't matter. Although it will be assigning IPs to all the various devices on the vehicle network so I'd just leave it alone.