tcpdump Filter Builder

Fill in host, port, and protocol conditions. Get the exact filter syntax and full command, no more guessing whether it's and or &&.

Interface

Snapshot Length (-s, 0 = full)

Write to File (optional)

Verbose output (-v) Don't resolve hostnames (-n), recommended

Host Direction

Host / IP (optional)

Network / CIDR (instead of host)

Port Direction

Port (optional)

tcpdump -i eth0 -n