IP address,

2. Disclaimer: This presentation is prepared by trainees of
baabtra as a part of mentoring program. This is not official
document of baabtra –Mentoring Partner
Baabtra-Mentoring Partner is the mentoring division of baabte System Technologies Pvt .
Ltd

3. IP address
FREDDY P.V
Email :F4FREDDY@GMAIL.COM
Facebook :F4FREDDY@GMAIL.COM

4. IP
• Short for Internet Protocol.
• IP specifies the format of packets, also called datagrams,
and the addressing scheme.
• Most networks combine IP with a higher-level protocol
called Transmission Control Protocol (TCP), which
establishes a virtual connection between a destination and
a source.
• The current version of IP is IPv4. A new version, called IPv6
or IPng, is under development.

5. IP address
• IP address is short for Internet Protocol (IP)
address.
• An IP address is an identifier for a computer or
device on a TCP/IP network.
• Networks using the TCP/IP protocol route
messages based on the IP address of the
destination.

6. OSI Model
Application
Presentation
Session
Transport
Network
Data Link
Physical

7. The Network Layer
Navigating data
Source
Destination

8. IP Addresses
32 bits
version header Type of Service/TOS Total Length (in bytes)
(4 bits) length (8 bits) (16 bits)
flags
Identification (16 bits) Fragment Offset (13 bits)
(3 bits)
TTL Time-to-Live Protocol
Header Checksum (16 bits)
(8 bits) (8 bits)
Source IP address (32 bits)
Destination IP address (32 bits)
Ethernet Header IP Header TCP Header Application data Ethernet Trailer
Ethernet frame

9. IP Addresses
32 bits
0x4 0x5 0x00 4410
9d08 0102 00000000000002
12810 0x06 8bff
128.143.137.144
128.143.71.21
Ethernet Header IP Header TCP Header Application data Ethernet Trailer
Ethernet frame

10. • An IP address is a unique global address for a
network interface
• The format of an IP address is a 32-bit numeric
address written as four numbers separated by
periods.
• Each number can be zero to 255.
• Example, 1.160.10.240 could be an IP address.

11. IP address Classes
5 Classes of IP address A B C D and E
Class A reserved for governments
Class B reserved for medium companies
Class C reserved for small companies
Class D are reserved for multicasting
Class E are reserved for future use

12. IP structure
 Class A begins 1 to 126
 Class B begins 128 to 191
 Class C begins 192 to 223

13. How does your computer get its IP
address?
• An IP address can be either dynamic or static.
• A static address is one that you configure yourself by
editing your computer's network settings.
• Dynamic addresses are the most common. They're
assigned by the Dynamic Host Configuration
Protocol (DHCP), a service running on the network.
• DHCP typically runs on network hardware such as
routers or dedicated DHCP servers.

14. Internet Protocol version 4 (IPv4)
• It is the fourth revision in the development of the Internet
Protocol (IP) and the first version of the protocol to be widely
deployed.
• Together with IPv6, it is at the core of standards-based
internetworking methods of the Internet.
• As of 2012 IPv4 is still the most widely deployed Internet
Layer protocol

16. • IPv4 is a connectionless protocol for use on packet-switched Link
Layer networks (e.g., Ethernet).
• It operates on a best effort delivery model, in that it does not
guarantee delivery, nor does it assure proper sequencing or
avoidance of duplicate delivery.
• These aspects, including data integrity, are addressed by an upper
layer transport protocol, such as the Transmission Control Protocol
(TCP).
• IPv4 uses 32-bit (four-byte) addresses, which limits the address
space to 4294967296 (232) addresses.
• Addresses were assigned to users, and the number of unassigned
addresses decreased.
• IPv4 address exhaustion occurred on February 3, 2011.

17. IPV6
• All addresses are 128 bits
• Write as sequence of eight sets of four hex
digits (16 bits each) separated by colons
– Leading zeros in group may be omitted
– Contiguous all-zero groups may be replaced by “::”
– Only one such group can be replaced

19. • 3ffe:3700:0200:00ff:0000:0000:0
000:0001
• can be written
• 3ffe:3700:200:ff:0:0:0:1
• Or
• 3ffe:3700:200:ff::1

20. • IPv6 uses 128-bit addresses, allowing for 2128,
or approximately 3.4×1038 addresses —
• more than 7.9×1028 times as many as IPv4
• The deployment of IPv6 is accelerating, with a
symbolic World IPv6 Launch having taken
place on 6 June 2012

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