Zoom 4420-A - Manual (Page 37)

Chapter 5. TCP/IP Settings 37
Static IP
If you select Static IP as your WAN Access Type, you see the
following parameters:
Parameter Select or enter . . .
IP Address If you are directly connected to an ADSL
modem, enter the IP Address assigned by your
Internet Service Provider.
Subnet Mask If you are directly connected to an ADSL
modem, enter the Subnet Mask assigned by
your ISP.
Default Gateway If you are directly connected to an ADSL
modem, enter the Default Gateway address
assigned by your ISP.
MTU Size The size of the Maximum Transmission Unit,
the largest physical packet size that a network
can transmit. The default is 1492 bytes.
DNS 1 The IP Address of the primary Domain Name
Server
DNS 2 The address of an alternate DNS server to use
in case DNS Server #1 is down or very slow