Understanding NAT and Packet Mangling in Linux
By
viveknathani_
Crisp on the outside, thoughtful on the inside. A keeper.
Summary
The article discusses the concept of NAT (Network Address Translation) and packet mangling in Linux, explaining how routers differentiate between devices on a network using the same public IP address.
Key quotes
· 3 pulledThe IPv4 address field should be the same for all devices. This is the IP provided by your Internet Service Provider (ISP) to your router, which acts as a gateway for your internet.
Why can't we just assign a unique IPv4 address to each device?
Well, the size of an IPv4 address is 4 bytes or 32 bits.
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