The document provides an overview of subnet masks, IP addresses (both IPv4 and IPv6), and networking concepts such as static and dynamic IP addresses, APIPA, and DHCP. It explains that a subnet mask divides an IP address into network and host portions, aiding in network management and performance optimization. Additionally, it outlines the classifications of IP addresses and their ranges.

1. What is Subnet Mask?
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2. • What is IP Address ?
• What is Static and Dynamic IP address?
• IP Address version (Ipv4, Ipv6)?
• IP Address Classes?
• What is Network Address & Host Address?
• What is APIPA IP Address?
• What is DHCP?
All Answers Video Link :
https://www.youtube.com/watch?v=7ojzPRR_aW0&t=15s

3. Ipv4 & Ipv6

4. Ipv4
• It is a 32 bit Identification.
• It is a logical Identification of the Computing device participating
in internet(LAN or WAN)
1st IP
00000000000000000000000000000000
Last IP
11111111111111111111111111111111

5. 232
It is divided into 4 octet, denoted in dotted
decimal
Ex : 192.168.0.1 (192 is 8 bit , 168 is 8 bit, 0 is 8
bit, 1 is 8 bit) = 32
eg: 0.0.0.0
255.255.255.255

6. Ipv6
• What does IPv6 stand for?
• IPv6 is an Internet Layer protocol for packet-switched internetworking
that offers end-to-end datagram transfer over several IP networks
while closely following the architectural concepts established in IPv4's
predecessor.
• Pv6 addresses have 128 bits.

7. ● Class A
● Class B
● Class C
● Class D
● Class E
Classes of IP

8. Classes of IP
● Class A
● Class B
● Class C
● Class D
● Class E
0-127 (1 – 126) only use, 127 is a
loopback address.
128-191
192-223
224-239
240-255

9. • Static IP Address is a manual entered ip address.

10. Dynamic IP address is two types
• APIPA IP Address & DHCP Address.

11. Automatic Private IP Addressing (APIPA)
• Automatic Private IP Addressing (APIPA) is a feature of Windows-
based OSes -- included since Windows 98 and Windows ME -- that
enables a Dynamic Host Configuration Protocol client to automatically
assign an IP address to itself when there's no DHCP server available to
perform that function.
• APIPA IP address range will be from 169.254. 0.1 to 169.254. 255.254.

12. DHCP
• What is the DHCP IP address?
Dynamic Host Configuration Protocol (DHCP) is a client/server protocol
that automatically provides an Internet Protocol (IP) host with its IP
address and other related configuration information such as the subnet
mask and default gateway.

13. Network + Host
An IP address is a 32-bit number. It uniquely identifies a host (computer or other
device, such as a printer or router) on a TCP/IP network.

14. What is Subnet Mask?
• An IP address is split in half using a subnet mask. The host (computer)
is identified by one part, and the network to which it belongs is
identified by the other. Examine an IP address and its structure to
have a better understanding of how IP addresses and subnet masks
operate.
• Note:
• This is a 32 Bit Number, that is used to identify network portion and
Host portion in IP address.

15. Subnet Mask use
• Minimizes broadcasting
• Maximizes Network performance
• Simplified management
• For overcoming LAN restrictions to enable businesses like the
maximum number of hosts
• Secured

16. Subnet Mask made up of
Network Bits 1
Host Bits 0
Subnet mask
boundary layer masking (0 ,255)
Non boundary layer masking within (0 ,255)