2. What is IP???
IPV4 Addressing
IPV4 Classes
Why IPV6
IPV6 Addressing
CONTENTS
3. A way to identify machines on a network
A unique identifier
Used to connect to another computer
Allows transfers of files and e-mail
WHAT IS IP???
4. 32 Bit Logical Address
Network ID
Host ID
4 Octets 0-255
An IPv4 address is a 32-bit sequence of 1s and 0s.
To make the IP address easier four digits written in separate periods
This way of writing the address is called the dotted decimal format.
IPV4 ADDEESSING
6. Ipv4 Classes
CLASS Range No. of Network No. of Host /Network
A 1.0.0.0 to 126.0.0.0 126 1,67,77,216 ( 224 )
B 127.0.0.0 to 191.255.0.0 16,384 65,535 ( 216 )
C 192.0.0.0 to 223.0.0.0 2,097,152 254 ( 28 )
D 224 to 239 N/A N/A
E 240 to 255 N/A N/A
7. IPV4 ADDRESSING
CLASS 1ST OCTET 2nd OCTET 3rd OCTET 4th OCTET
A NETWORK HOST HOST HOST
B NETWORK NETWORK HOST HOST
C NETWORK NETWORK NETWORK HOST
D HOST HOST HOST HOST
Class D addresses are used for Multicast groups
Class E are reserved for research work only
8. 128 bits logical address
2128 = 3.4 x 1038
IPV6 = 128 BITS = 16 OCTETS
IPV6 address written in Hexadecimal form.
One Hex digit = 4 bits
HEX. BINARY . DEC
WHY IPV6
9. How many addresses does 128 bits give us?
340 undecillion addesses or …
340 trillion trillion trillion addresses or …
“IPv6 could provide each and every square micrometer of the earth’s surface
with 5,000 unique addresses. Micrometer = 0.001 mm or 0.000039 inches” or….
“A string of soccer balls would wrap around our universe 200 billion times!”
“An entire IPV4 internet for every star in universe”…….
Guesses
