ICMP Headers
Type (8 bits) Code (8 bits)
L3 Headers
Version (4 bits) TTL (8 bits) Protocol (8 bits) Source IP (32 bits) Dest IP (32 bits)

L2 Headers
Dest MAC (48 bits) Source MAC (48 bits)

Bits
101010101010101010101010101010101010101010101010 101010101010101010101010101010101010101010101010 1010 10101010 10101010 10101010101010101010101010101010 10101010101010101010101010101010 10101010 10101010
Header Size