LevelOne GEP-0950 - Manual (Page 19)

First, IP Address: as shown in the figure above, enter “192.168.1.1”, for
instance. For sure, an IP address such as 192.168.1.x must be set on your PC.
Second, Subnet Mask: as shown in the figure above, enter “255.255.255.0”.
Any subnet mask such as 255.255.255.x is allowable in this case.