Name

Name

michealsean

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USA

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https://www.sysnettechsolutions.com/en/

Twitter

https://twitter.com/SysnettechS

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Hello, I'm Micheal! I have been doing various researches and projects about Microsoft Server, Linux Server on computer networks. I also write articles about IT on my blog at SYSNETTECH Solutions. I would like to give brief information about NAT technology that I have been researching recently; NAT (Network Address Translation) Devices need an IP to go online. As the number of people on the internet and the number of devices are increasing day by day, IPv4 address is about to run out (approximately 3.3 billion). The first is NAT and the other is IPv6. We mentioned above that the IPv4 address is scarce, and the internet providers give us a single real IP address (public), but we go to the internet with at least 3-4 devices in a house, so how is it possible that NAT technology comes into play here. Thanks to NAT technology, we can go out with more than one device with a real IP. Thanks to NAT, we do not need a separate public ip address for all devices in our home and connected to the internet. Devices in the home receive a private IP from the network internally to a private network created by the wireless Router built in the modem. One leg of the wireless router built in the modem is connected to the internet network of the service provider and the other leg is connected to the private network set up in the home and enables the passage of packets between these two networks. NAT: NAT is an internet protocol developed so that a computer on a network can use a different IP address when going to another network or internet outside its network. The NAT protocol can take many clients to the Internet with a single IP address. NAT protocol makes it accessible in LAN by assigning a virtual IP address to clients that do not have a real IP address. While opening to the outside world, it enables them to go out to the outside world by using its real IP address. There is no limit on the number of IP addresses to be distributed with the NAT protocol. It is a protocol that has emerged due to insufficient IPv4 addresses. Some addresses are reserved for the Internet as private addresses for use in local networks. 10.0.0.0/8 à 10.0.0.0 - 10.255.255.255 172.16.0.0/12 à 172.16.0.0 - 172.31.255.255 192.68.0.016 à 192.168.0.0 - 192.168.255.255 (We do not go online with these private IPs. These private IPs are reserved by IANA for the creation of internal networks. These are defined as Address Allocation for Private Internets. In short, we call private addresses (private). open) We call address.) Many companies and institutions around the world perform IP dialing using a table given above in their local networks. The user's computer has an address in the range of private IP addresses. When a request comes from here to go to an address that is not in the local network, the NAT router converts the private IP address to a public IP address, by looking at the NAT table previously set by the user, and thus goes to external networks or the Internet. This IP, which the router changed by translation, is the known IP of the user on the Internet. Similarly, when a request is received from the external networks towards this known IP, it looks at the router table and redirects this IP to the user's private IP address and sends the package to the user's computer. Matches made in the NAT table can be set up in 3 different ways depending on the preference of the network administrator or user. 1- Fixed NAT (Static Nat): It is a one-to-one conversion of the private IP used in the local network to the public IP. In this nat type, the nat table is filled directly by the network administrator. That is, the network administrator determines the private IPs to be used and matches them with the public IP address it has. No IP addresses are connected to external networks except for addresses specified in this way. 2- Dynamic NAT In this NAT type, the public IP address block owned is dynamically mapped to private IP addresses. The network administrator determines an IP address pool, and the NAT router automatically maps IP addresses and provides a connection to external networks. The difference from the fixed NAT is that the router itself does the mapping. Whichever IP matches first, it comes to the Internet, if there are enough public IP addresses, all private IPs can be paired and connected to the Internet. After the connection is lost, the records in the NAT table are deleted until the next connection is established. 3- Overloading NAT (PAT) The methods I described above will be ineffective when two different clients requesting the same device in the local network communicate with the same server. Social Network Facebook | Twitter | YouTube | Linkedin | Instagram | Vimeo | Wikipedia | Tumblr | Microsoft TolgaBagci | Microsoft TolgaBagci | TolgaBagci | MyURL My Project: Cisco Packet Tracer My Addon: System and Network Addon in Mozilla My TimeLine: Networking Solutions My Company: SNT My Autodesk: My AutoDesk Page My Meetup: My Meetup Page My IMDB Page: My IMDB Page My Business 1: Networking Business My Business 2: Networking Business

History

Member for

4 years 8 months