Please enable JavaScript.
Coggle requires JavaScript to display documents.
3.1.4 IP address and URL, Web Address:, i. 2001:0db8:0a0b:12f0:0000:0000…
3.1.4 IP address and URL
The Internet relies on an addressing system (which is known as IP address) like the postal service to send data to a specific computer or device on the Internet.
-
Domain Name:
• Because lengthy IP address can be difficult to remember,
the Internet supports domain names.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
• A domain name system (DNS) is the method that the Internet uses to store domain names and their corresponding IP address.
• When user enters a domain name
(i.e., google.com) in a browser, a DNS server translates the domain name to its associated IP address so that the request can be routed
to the correct computer.
-
-
IP address is a sequence of numbers that uniquely identifies the location of each computer or device connected to the Internet or any other network.
-
• Made up of four groups of decimal numbers,
• The number in each group is between 0 and 255,
-
• Each group consists of 8 bits, so 4 groups=32bits
-
-
• Example:1.2.3.4 , 10.10.100.99 , 255.255.255.255
IPv4 address has two parts
1.The network ID/part (first three numbers) identifies the network.
2.The host ID/part (last number) identifies the specific computer.
-
• Why IPv6? The growth of the Internet has led to a shortage of IPv4 addresses. Because of this increase, IPv4 addresses are running out.
-
-
• Each IPv6 address is represented as eight groups/fields of four *hexadecimal digits, separated by colons (:).
-
-
• Hence, total bits are 8 x 16 = 128 bits
-
• Due to the growth of devices accessing the Internet, the original IPv4 addresses began decreasing in availability
• Thus, the solution is for IPv6 to accommodate this increased demand by providing a much larger address space, along with improved traffic routing and better security.
-
-
-
-
-
-
-
-
-
