i'm gonna go out on a huge limb and say
that nat saved the internet
maybe
what's up guys welcome back to the
channel i'm mike this is the ultimate
tech hub thank you for joining us i
really appreciate it you guys are
awesome so you may have seen a video we
did a couple weeks ago where i said dhcp
save the internet and i got a lot of
questions and comments about that video
and many of my awesome viewers said that
nat saved the internet
or at least was an mvp and to be honest
in that video i didn't discuss gnat at
all
it was all about dhcp
and that's why i'm making this video now
so guys let's talk about nat and what it
does first nat stands for network
address translation in network address
translation nat translates private ip
addresses to public ip addresses and
back and forth and with that network
address translation there will be no
communication now dhcp
dynamic host configuration protocol
hands out the ip address
the subnet mask
the default gateway and the dns
so dhcp did save the internet
by automatically handing out ip
addresses to private networks but you
guys were correct without nat it
wouldn't work so in a way dhcp and nat
work together in unison you need the ip
addresses and all the information but
you also need a way to translate it back
and forth between private and public
networks now there's three types of
network address translation
there's static
dynamic
and pat
port address translation static nat is
used for one-to-one translation of ports
or ip addresses
for example one private ipa address is
mapped to one public ip address
dynamic nat is used with a public
ipaddress pool
and works with more than one public ip
address here multiple ip addresses are
mapped to a pool of public ip addresses
and these ip addresses are given to
internal users randomly so it is
difficult to reach any internal user
from the outside dynamic nat is used
when the number of internal users are
known and lastly pat
port address translation
or nat overload
and here many private ip addresses are
translated to one public ip address
the traffic distinguisher and pat are
port numbers tcp and udp ports are used
in pat nat overload so now you know the
three types of nat
static dynamic and pat
but i'm willing to admit that nat saved
the internet
as well as dhcp
and guys make sure to watch the video on
dhcp save the internet there's a lot of
great information in there and guys i
hope you learned why net is so important
to the internet and it most likely saved
the internet and guys thank you for
watching i really appreciate you guys
are awesome and i'll see you next video
real soon
peace
you
