(N23) Networking Basics part9 Private IP Address, NAT and PAT
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Private IP Address
Class A:10.0.0.0 - 10.255.255.255
Class B:172.16.0.0 - 172.31.255.255
Class C:192.168.0.0 192.168.255.255
Private ip address can use by any person/home or any organization within their private network (LAN)
No need to pay for private ip address
To communicate in public -internet we need public ip address
NAT - Network Address Translation
To communicate outside of your (private) network , means to public network, you should connected to public (internet) , and assign with public ip address
NAT - maps private ip address to public ip address
One to one
1 private – 1 public
10 private – 10 public ip address
In our home or Office lot of devices, so lot of private ip address means we need lot of public ip address
PAT - Port Address Translation (NAT Overload)
Multiple private to single public address
10 Private – 1 Public