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http://support.verizon.com/router
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Subnet Mask
Specify a subnet mask. The default value is 255.255.255.0
Advanced
DHCP
Toggle the switch to enable or disable DHCP server.
IP Address Pool
Enter the start and end IP address of the IP address range which your router’s DHCP server will assign to devices on the network.
Address Lease Time
Enter an address lease time in hours. IP addresses will be assigned for this period of time before being reassigned.
Primary DNS
Address
Enter a primary DNS address.
Secondary DNS
Address
Enter a secondary DNS address.