# The net/trafd port

## trafd-3.0.1 – BPF traffic collector

## Description

    trafd is a superset of trafshow, and extends it by adding a daemon
    which collects data about network connections (src, dst, protocol
    and length). The resulting data can be dumped to a file for later
    processing.

    To use trafd, your kernel must be rebuilt with the following line
    added to your kernel config file (/sys/arch/<YourArch>/conf/<YourMachine>):

    pseudo-device	bpfilter	8       # Berkeley packet filter

    The number after bpfilter is the number of interfaces that can be
    examined simultaneously. See bpf(4) for details.

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## Library dependencies

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