You have to create an IP address on the OmniPro device that resides on your network and not in the DHCP scope.
The OmniPro device does not do DHCP. The OmniPro does not need DHCP anyhow. You don't ever configure a gateway address on the OmniPro device.
IE: it does not need to be seen by your router for it to work.
Most likely you will not see the device on your router and you have to add it manually using the MAC address that you get from doing arp.
Looking at my router (PFSense) there is no capability to add a non DHCP client to it.
IE: Doing this in a linux command line and it is the same for any OS.
1 - First ping the HAI interface
HAI:~# ping 192.168.1.2
PING 192.168.1.2 (192.168.1.2): 56 data bytes
64 bytes from 192.168.1.2: seq=0 ttl=64 time=3.060 ms
64 bytes from 192.168.1.2: seq=1 ttl=64 time=3.140 ms
2 - then arp the IP addressHAI:~# arp 192.168.1.2
IP address HW type Flags HW address Mask Device
192.168.244.170 0x1 0x2 08:00:27:b6:7e:26 * eth0.2
192.168.1.2 0x1 0x2
00:07:88:00:33:66 * br-lan
3 - you can also do nmap to see the address.
nmap -sP 192.168.1.1/24
Starting Nmap 7.70 (
https://nmap.org ) at 2022-03-15 05:56 CDT
Nmap scan report for 192.168.1.2
Host is up (0.0083s latency).
MAC Address: 00:07:88:00:33:66 (Clipcomm)
Nmap scan report for ICS-HAI.lan (192.168.1.1)
Host is up.
If you utilize open ports for external HAI OmniPro use you just put in the IP of your device and port in the firewall configuration.