Western Digital My Net N750 User Manual - Manual (Page 58)

ADVANCED SETTINGS
54 MY NET ROUTERS
USER MANUAL
Subnet Mask The subnet mask is used to control how many subnetworks can
exist in your local network. The more subnetworks there are, the
fewer the hosts you can have per subnet.
Default Gateway IP address of the router to which this device is connected while
configured as an extender.
Primary DNS Server The primary DNS Server address is configured and maintained by
your ISP. This can be found on your main router or contact your ISP
for this information.
Secondary DNS Server The secondary DNS Server address is configured and maintained
by your ISP. Contact your ISP for this information.