Layer 3 (Network Layer) – Responsible for routing packets between networksIPv4 packet = IPv4 header + payload 🔹 IPv4 Header Fields Field Bits Description Version 4 IP version: 4 for IPv4 (0100), 6 for IPv6 (0110) IHL (Internet Header Length) 4 Header size in 4-byte blocks. Min: 5 (20 bytes), Max: 15 (60 bytes) DSCP…
