Epson C82346 - Manual (Page 51)

4. Select the correct serial numbers for the Ethernet Card from
the list shown in the dialog box; then click Open. The IP
Config dialog box appears on the screen and shows the
current IP address.
5. Set the following options in the IP Config dialog box:
IP address: determine and assign an IP address
Subnet mask: assign the subnet mask
Auto IP address: set to Off
Note:
The Auto IP address option is a function designed
specifically for UNIX users. Windows NT overrides this
function, so you can leave it off.
To prevent the assigned IP address from changing
unexpectedly in UNIX, UNIX users should set the Auto IP
address option off.
6. After making your settings, click the Save button. To change
these settings, repeat steps 3 through 5.
4-6 Using Windows NT