Packet Inspection

tcpdump examples

• Dump ethernet header / Source MAC / Destination MAC (14 Octets)
• Dump IP header / Source IP / Destination IP / TTL (20 Octets)
• Dump UDP header / Source Port / Destination Port (8 Octest)
• Dump DNS header / Query / Response ()

libpcap examples

1. libpcap packet counter
2. libpcap packet size
3. libpcap packet payload
4. libpcap ethernet header
5. libpcap ip header
6. libpcap tcp/udp ports