First of all we are going to talk about what NAT is. We can say that they are the acronym for Network Address Translator , or in Spanish network address translator. Its function is precisely that, to translate the directions so that the connections are possible.fashionbeautypalace
NAT is a fundamental part between our devices and the Internet . It
is part of the router, modem or the equipment that we use to connect to the
network. It is sometimes known as IP address masking. This is so
since it allows us to create a public IP address so that possible strangers do
not hack into our network.
Each of the devices that are connected to our network have a unique
IP address . Here we can mention computers, mobile phones or any
other equipment. This is necessary so that it is connected to the Internet
and the router detects it and can function normally. What the network
address translator does (whether in the router, modem or device whatever) is to
provide a public IP address to that entire network, to the entire set of
computers.
We can say that instead of having to assign a different IP address for
each of these devices, what NAT does is give a unique one for all of
them. It can be anything between 192.168.0.0 and
192.168.255.255. Data packets coming from the Internet contain the
external IPv4 address in their header. Depending on the type of data, NAT
forwards it to private or internal devices so that the data can be processed as
needed.
In short, NAT helps control IPv4 addresses exhaustion ,
managing local or private IPv4 addresses of all computers connected to the
network. So if there are three computers, two mobiles, a printer, and any
other computer, each has a private IP address, which would make a total of
seven addresses. NAT treats them individually within the network, but for
the Internet, it is just an IP address, as if it were a single device.
Keep in mind that NAT acts only on IPv4 addresses . As we
know, there is also the option of IPv6, more adapted and with better
characteristics. In this case, it would not be necessary to translate the
network addresses, as this is one of the advantages it offers. We have
more and more computers connected to the network and it is necessary to have to
administer them correctly to achieve a good Internet connection at all times.