Cyber Ethics – Scanning

By

Noah Franklin J

Session Flow

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• IP Addresses.

• Types of IP Addresses.

• Class Ranges.

• IP Addresses Versions.

• NAT – Network Address Translation

IP Addresses

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• Every Computer that is connected to internet has

unique IP Address.

• It is 32 bit number.

• Two types of IP Address.

• Static IP – Remain Same at every session

• Dynamic IP – Changed at Every Session.

IPV4

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IPv4

Internet Protocol version 4 (IPv4) is the fourth revision

in the development of the Internet Protocol (IP) and it

is the first version of the protocol to be widely

deployed.

IPv4 uses 32-bit (four-byte) addresses, which limits

the address space to 4,294,967,296 (232) possible

unique addresses.

IPV6

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IPv6

IPv6 has a much larger address space than IPv4. This

is based on the definition of a 128-bit address,

Whereas IPv4 used only 32 bits. The new address

space thus supports 2128 (about 3.4×1038)addresses.

IP Address Classes

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IPConfig

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• Ipconfig is a DOS utility which can be used from MS DOS and a

MS-DOS shell to display the network settings currently assigned and

given by a network. This command can be utilized to verify a network

connection as well as to verify your network settings.

NAT

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Network address translation (NAT) is the process of modifying

network address information in datagram packet headers while in

transit across a traffic routing device for the purpose of remapping a

given address space into another.