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DI-724U User’s Manual
D-Link Systems, Inc.
Using the Configuration Menu
Static IP Address
Home > WAN > Static IP Address
Primary DNS
Server:
The IP address of the Domain Name Server. Your ISP will
provide this information if it is required; otherwise, leave this
box set to 0.0.0.0.
Secondary DNS
Server:
This is optional.
MTU:
The Maximum Transmission Unit (MTU) is a parameter that
determines the largest packet size (in bytes) that the router
will send to the WAN. If LAN devices send larger packets, the
router will break them into smaller packets. Ideally, you should
set this to match the MTU of the connection to your ISP.