D-Link DIR-X1530 Quick Installation Manual page 38

DIR-X1530 Quick Installation Guide
4. IPv4 address assignment. By default, the built-in DHCP server of
the router assigns IPv4 addresses to the devices of the LAN. If you want
to manually assign IPv4 addresses, disable the DHCP server (click the
IPv4 tab and select the Disable value from the Mode of IPv4 address
assignment drop-down list in the Dynamic IP Addresses section).
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