net/sniffnet - The NetBSD Packages Collection

Sniffnet is a simple yet insightful application to let you have a glance into
your network traffic in a straightforward and appealing way.

Features
 - choose a network adapter to inspect
 - select filters to apply to the observed traffic
 - view real-time charts about traffic intensity (bytes and packets per second,
   incoming and outgoing)
 - view overall statistics about the filtered traffic
 - view most relevant connections (most recent, most packets, most bytes)
 - save complete textual report with detailed information for each connection:
    - source and destination IP addresses
    - source and destination ports
    - carried protocols
    - amount of exchanged packets and bytes
    - initial and final timestamp of information exchange