Modecom MC-4220, Руководство пользователя

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802.11n WLAN ADSL2+ Router
Before you begin, you must have the following information available:
The IP address and subnet mask of each PC •
The IP address of the default gateway for your LAN. In most cases, this is •
the address assigned to the LAN port on the Wireless ADSL2+ Router. By
default, the LAN port is assigned the IP address 10.0.0.2 . (You can change
this number or another number can be assigned by your ISP. See Addressing
for more information.)
The IP address of your ISP’s Domain Name System (DNS) server.
•
On each PC to which you want to assign static information, follow the instructions
relating only to checking for and/or installing the IP protocol. Once it is installed,
continue to follow the instructions for displaying each of the Internet Protocol (TCP/
IP) properties. Instead of enabling dynamic assignment of the IP addresses for the
computer, DNS server and default gateway, click the radio buttons that enable you to
enter the information manually.
Note
Your PCs must have IP addresses that place them in the same subnet as the
Wireless ADSL2+ Router’s LAN port. If you manually assign IP information to
all your LAN PCs, you can follow the instructions in Addressing to change the
LAN port IP address accordingly.
IP Addresses, Network Masks,
and Subnets
IP Addresses
Note
This section refers only to IP addresses for IPv4 (version 4 of the Internet Pro-
tocol). IPv6 addresses are not covered.
This section assumes basic knowledge of binary numbers, bits, and bytes.
IP addresses, the Internet’s version of telephone numbers, are used to identify
individual nodes (computers or devices) on the Internet. Every IP address contains
four numbers, each from 0 to 255 and separated by dots (periods), e.g. 20.56.0.211.
These numbers are called, from left to right, field1, field2, field3, and field4.
This style of writing IP addresses as decimal numbers separated by dots is called
dotted decimal notation . The IP address 20.56.0.211 is read “twenty dot fifty-six dot
zero dot two-eleven.”
Structure of an IP address
IP addresses have a hierarchical design similar to that of telephone numbers. For
example, a 7-digit telephone number starts with a 3-digit prefix that identifies a group
of thousands of telephone lines, and ends with four digits that identify one specific
line in that group.