[b]"Can someone explain what is IP version 4 in simple terms?"[/b] or [b]"What is IP version 4 and why is it still

IPv4’s the granddaddy of internet addressing. Uses 4-number groups (like 203.0.113.42) to ID devices.

How? Data’s wrapped with sender/receiver IPs, and routers pass it along. NAT helps reuse private IPs (e.g., 192.168.x.x).

IPv6’s the upgrade but IPv4 ain’t going anywhere soon. Play with `arp -a` to see local IPs in action!