TCPDUMP filters - UCR

TCPDUMP filters expression selects which packets will be dumped. If no expression is given, all packets on the net will be dumped. Otherwise, only packets for which expres sion is `true' will be dumped. ber) preceded by one or more qualifiers.

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The BSD Packet Filter: A New Architecture for User ...

WinterUSENIX–Jan.,1993–SanDiego,CA 3 Packet Size (bytes) Mean Per Packet Overhead (usec) 0 200 400 600 800 1000 1200 1400 1600 0 100 200 300 400 500