DSL-G604T Wireless ADSL Router Manual
C
IP Concepts
This appendix describes some basic IP concepts, the TCP/IP addressing scheme and show how to
assign IP Addresses.
When setting up the Router, you must make sure it has a valid IP address. Even if you will not use the
WAN port (ADSL port), you should, at the very least, make sure the Ethernet LAN port is assigned a
valid IP address. This is required for telnet, in-band SNMP management, and related functions such as
“trap” handling and TFTP firmware download.
IP Addresses
The Internet Protocol (IP) was designed for routing data between network sites all over the world, and
was later adapted for routing data between networks within any site (often referred to as
“subnetworks” or “subnets”). IP includes a system by which a unique number can be assigned to each
of the millions of networks and each of the computers on those networks. Such a number is called an
IP address.
To make IP addresses easy to understand, the originators of IP adopted a system of representation
called “dotted decimal” or “dotted quad” notation. Below are examples of IP addresses written in this
format:
201.202.203.204 189.21.241.56 125.87.0.1
Each of the four values in an IP address is the ordinary decimal (base 10) representation of a value that
a computer can handle using eight “bits” (binary digits — 1s and 0s). The dots are simply convenient
visual separators.
Zeros are often used as placeholders in dotted decimal notation; 189.21.241.56 can therefore also
appear as 189.021.241.056.
IP networks are divided into three classes on the basis of size. A full IP address contains a network
portion and a “host” (device) portion. The network and host portions of the address are different
lengths for different classes of networks, as shown in the table below.
Networks attached to the Internet are assigned class types that determine the maximum number of
possible hosts per network. The previous figure illustrates how the net and host portions of the IP
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Содержание DSL-G604T
Страница 1: ...DSL G604T WirelessADSLRouter User sGuide May 2005 DSLG604TEUA1 ...
Страница 32: ...DSL G604T Wireless ADSL Router Manual Figure 3 Set Internet Connection Type window Step 2 1 Bridge Mode 32 ...
Страница 38: ...DSL G604T Wireless ADSL Router Manual Step 2 3 Dynamic IP Address 38 ...
Страница 40: ...DSL G604T Wireless ADSL Router Manual Step 4 Restart 40 ...
Страница 61: ...DSL G604T Wireless ADSL Router Manual Figure 4 Dynamic DNS window 61 ...
Страница 77: ...DSL G604T Wireless ADSL Router Manual Figure 5 DMZ window Click Apply when your configuration is complete 77 ...
Страница 82: ...DSL G604T Wireless ADSL Router Manual Figure 5 RIP window 82 ...
Страница 92: ...DSL G604T Wireless ADSL Router Manual Figure 5 Wireless Performance window 92 ...
Страница 105: ...DSL G604T Wireless ADSL Router Manual Figure 7 Device Log window 105 ...
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