Utility to measure the performance of pcap network interfaces.
captop v1.17 (libpcap version 1.8.1)
usage: captop [OPTIONS] [BPF expression]
Pcap options:
-B --buffer SIZE Set the operating system capture buffer size.
-c count Exit after receiving count packets.
-s --snaplen VALUE Specify the capture length of packets in bytes.
-t --timeout NUM Specify the timeout in msec.
-O --no-optimize Do not run the packet-matching code optimizer.
--next Use pcap_next instead of pcap_loop.
Range Filters:
-F --filter [RANGES] Range filters: e.g. -F 1-100,1024,8000-8010
Generator:
-R --rand-ip Randomize IPs addresses.
-g --genlen VALUE Specify the length of injected packets.
Interface:
-i --interface IFNAME Listen on interface.
-o --output IFNAME Inject packets into interface.
Handler:
-H --handler source.c Dynamically load the pcap handler.
Thread:
--thread INT Launch multiple capture threads.
--fanout GROUP STRING Enable fanout!
File:
-r --read FILE Read packets from file.
-w --write FILE Write packets to file.
Miscellaneous:
--version Print the version strings and exit.
-? --help Print this help.