I have it and it works, but the only problem is the DHCP server gives random IP addresses that I can reserve.
I want to specify the IP addresses myself - 101, 102, 103, 104, 105 and 106 as in 192.168.1.101
I want to specify the IP addresses myself - 101, 102, 103, 104, 105 and 106 as in 192.168.1.101
DHCP isn't the same thing as DHCP reservation. It sounds like you are just describing DHCP. With reservation you could indeed set in the router to reserve:
192.168.101 to rig #1
192.168.102 to rig #2
...
192.168.106 to rig #6
the router will never assign any other IP address to those devices and will never assign those reserved IP addresses to any other device.
Most routers today support DHCP reservation although they may use a different name. Look for a webpage where you can assign specific ip addresses to specific devices based on their host name and mac address.
I know what it is and how it works, but my router implementation is poor. There is no option to setup the IP address myself. All I can do is select: Always use the same IP address
So it it impossible to make the router give 6 consecutive IP addresses to all my miners:
You could disable DHCP on your router, and then grab some free/opensource DHCP server software for a computer and run it on your network.