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what is Public IP, Private IP, IPv4, IPv6, DNS, ARP, OSI model, MAC address.

All about Public IP, Private IP, IPv4, IPv6, DNS, ARP, OSI model, MAC address.

It follows a big role in Ethical Hacking. You've must good understanding of networking that's What is Switch, Router, Hub, Modem?", "What is network topology? What is noces How do works LAN Loc? Area Network) WAN Wide area network MAN Metropolitan Area Network What is network Port?", "What is Internet protocol?" and also Fundamental of network and wireless Security and last all about NAT, DHCP, Subnetting, Public IP, Private IP, IPv4, IPv6, DNS, ARP, OSI model, MAC address. You must have a piece of good knowledge of these things.

  • a) What is Switch, Router, Hub, Modem?
  • b) What is network topology?
  • c) What are nodes?
  • d) How do works LAN/Local? ( Local Area Network) WAN (Wide area network ) MAN ( Metropolitan Area Network )
  • e) What is a network Port?
  • f) What is Internet protocol?
  • g) Fundamental of network and wireless Security?
  • h) All about NAT, DHCP, Subnetting, Public IP, Private IP, IPv4, IPv6, DNS, ARP, OSI model, MAC address.

1) What is NAT (network address translation) | How does nat work? | What are the 3 types of Nat

In this video, we will understand with an Explanation of what Network Address Translation is, how it works and why we need it to keep the internet growing. IP versions 4 and 6 are also discussed.

  • what is NAT or Network Address Translation?
  • Why do we use or need NAT?
  • What are the 3 types of NAT we can implement in our network design?

What is NAT and how does it paint? Network Address Translation (NAT) conserves IP addresses with the aid of permitting private IP networks the usage of unregistered IP addresses to go surfing. Before NAT forwards packets among the networks it connects, it interprets the non-public inner network addresses into prison, globally unique addresses.

What are NAT and its types? Image result for What is NAT (community cope with How nat works? 3 kinds of Nat Network Address Translation (NAT) is a system wherein one or extra-local IP cope is translated into one or more Global IP addresses and vice versa that allowing you to offer Internet get entry to the local hosts. NAT typically operates on a router or firewall.

2) DHCP Explained | Dynamic Host Configuration Protocol | DHCP Server Configuration

In this video on DHCP explained, the information regarding the DHCP protocol is provided in a systematic order, beginning with what is dynamic host configuration protocol.

Continuing with the DHCP server configuration and the allocation method in DHCP protocol, moving along with understanding some of the DHCP settings including lease, scope, and address reservation for an IP address and also understanding the operation model of the DHCP protocol according to which the client receives its IP address and network configuration settings needed to access the internet.

3) Subnetting Explained

Subnetting is one of the most challenging topics in networking, particularly for beginners. In this video, I take a look at some of the related concepts required for understanding this practice, including IP addressing structure, subnet masks, address classes, and binary conversion.

4) IP address: Public and Private IP addresses explained

public IP: A public IP deal is an IP deal that may be accessed immediately over the net and is assigned to your community router by way of your internet carrier company (ISP). Your private tool also has a non-public IP that remains hidden while you connect with the net through your router's public IP.

private IP: In Internet networking, a private community is a computer network that uses a private cop with an area of IP addresses. These addresses are normally used for nearby area networks in residential, workplace, and employer environments. Both the IPv4 and the IPv6 specifications define private IP deal with levels.

5) Internet Protocol - IPv4 vs IPv6 as Fast As Possible

IPv4 vs IPv6... Why do we need to transition from the Internet Protocol that's served us so well for all these years? Maybe because we're completely running out of IP addresses!

IPv4: Internet Protocol version 4 is the fourth model of the Internet Protocol. It is one of the center protocols of requirements-based internetworking techniques inside the Internet and different packet-switched networks. IPv4 became the primary version deployed for production on SATNET in 1982 and at the ARPANET in January 1983.

What is IPv4 used for? IPv4 is an IP version widely used to pick out gadgets in a community the usage of an addressing gadget. It changed into the first model of IP deployed for production in the ARPANET in 1983. It uses a 32-bit deal with a scheme to keep 2^32 addresses which are more than 4 billion addresses.

IPv6: Internet Protocol version 6 is the latest version of the Internet Protocol, the communications protocol that provides an identification and places gadgets for computer systems on networks and routes visitors throughout the Internet.

What is IPv6 used for? IPv6 (Internet Protocol version 6) is the 6th revision to the Internet Protocol and the successor to IPv4. Its capabilities are similar to IPv4 in that it provides the particular IP addresses important for Internet-enabled gadgets to communicate.

6) DNS (Domain Name System) - Explained, Types of Domain Name Servers | How DNS works

Learn about DNS, DNS Server or DNS name server, DNS lookup, what is DNS server and how it works, and how DNS server or Domain Name System works. DNS or Domain Name System translates domain names to their IP addresses so that browsers can load the requested website. Servers are computers storing HTML files, images, sounds, videos, or any other file types. Servers that work together to provide the IP address of the requested website to the web browser are called DNS servers

The Domain Name System is the hierarchical and decentralized naming system used to identify computer systems, services, and other resources reachable via the Internet or other Internet Protocol networks. The aid statistics contained in the DNS accomplice domains with other styles of data.

What is DNS used for? DNS interprets domain names to IP addresses so browsers can load Internet sources. Each tool linked to the Internet has a completely unique IP cope that other machines use to discover the tool. DNS servers remove the want for people to memorize IP addresses consisting of 192.168.

7) Address Resolution Protocol (ARP) - Explained with example | Computer network

What is ARP or Address Resolution Protocol in computer networks, why ARP is used, and how does ARP work? Explained in detail. ARP is used to resolve the IP addresses to the Ethernet Address.

When the ARP table or ARP Cache is missing any required IP-to-Ethernet address translation, the IP packet is queued.

Address Resolution Protocol runs and quickly fills the needed IP-to-Ethernet address translation in the ARP table. The updated entry is then used to create an Ethernet frame and transmit the queued IP packet.

8) OSI (Open Systems Interconnection)

The Open Systems Interconnection version is a conceptual model that characterizes and standardizes the communication features of a telecommunication or computing system without regard to its underlying internal structure and generation.

In a perfect world, every step of the OSI model would be followed. Watch to learn what the OSI model is and its importance. The Open Systems Interconnection model, or OSI model, is a reference model for how applications should communicate over a network -- the keyword being “should.” The OSI model breaks down the communication process between two network endpoints into seven layers, acting as a network protocol.

The seven layers are the application layer, presentation layer, session layer, transport layer, network layer, the data-link layer, and physical layer. Each layer has its own function and transmits info to the layer above and below it to work together.

Unfortunately, the model is rarely implemented as-is, and few network products actually keep related functions together in the OSI model’s well-defined layers.

Do you use the OSI model as a framework? Where do you stray from the model? Tell us in the comments, and be sure to hit that like button.

9) MAC Addresses Explained

What is a MAC address? MAC stands for Media Access Control. It’s a unique identifier that is assigned to a network interface card, aka a NIC. This is what a MAC address looks like? 08-00-27-EC-10-61. It's a 48-bit (6-byte) address that is used for layer 2 communication.

The first thing to note is that unlike IP addresses, which can be changed, MAC addresses are burnt into NIC by the manufacturer. A MAC address has 2 sections. The first 24-bits is called the Organizationally Unique Identifier (OUI) and it identifies the vendor. The last 24-bits is a unique value assigned by the vendor. The result is an address that should be unique in the world.

There are three types of Mac addresses:

  • Unicast - A unique mac address assigned to an interface
  • Multicast - An address used to send traffic to a device using a particular application/protocol.
  • Broadcast - An address that is sent to all devices within a local network.

Why do we need MAC addresses? When are computers are talking on the local area network or LAN, they use layer 2 communication, and layer 2 communication uses MAC addresses. When we leave our network, this is when the IP addresses are used. Routers are layer 3 devices and they mainly focus on IP addresses to get the data to the destination.

MAC vs. IP Address: What's the Difference?

Both MAC addresses and IP addresses are required to send data to its destination -- but they work in different ways. MAC addresses are used for local identification, while IP addresses are responsible for global identification. MAC and IP addresses also operate on different layers of the OSI model. The MAC is a Layer 2 device, and the MAC address is a Layer 2 address, while IP corresponds to Layer 3 of the OSI model.

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