udpdump(1) The Wireshark Network Analyzer udpdump(1)
NAME
udpdump - Provide an UDP receiver that gets packets from network
devices (like Aruba routers) and exports them in PCAP format.
SYNOPSIS
udpdump [ --help ] [ --version ] [ --extcap-interfaces ]
[ --extcap-dlts ] [ --extcap-interface=<interface> ]
[ --extcap-config ] [ --capture ] [ --fifo=<path to file or pipe> ]
[ --port=<port> ] [ --payload=<type> ]
DESCRIPTION
udpdump is a extcap tool that provides an UDP receiver that listens for
exported datagrams coming from any source (like Aruba routers) and
exports them in PCAP format. This provides the user two basic
functionalities: the first one is to have a listener that prevents the
localhost to send back an ICMP port-unreachable packet. The second one
is to strip out the lower layers (layer 2, IP, UDP) that are useless
(are used just as export vector). The format of the exported datagrams
are EXPORTED_PDU, as specified in
https://code.wireshark.org/review/gitweb?p=wireshark.git;a=blob;f=epan/exported_pdu.h;hb=refs/heads/master
OPTIONS
--help
Print program arguments.
--version
Print program version.
--extcap-interfaces
List available interfaces.
--extcap-interface=<interface>
Use specified interfaces.
--extcap-dlts
List DLTs of specified interface.
--extcap-config
List configuration options of specified interface.
--capture
Start capturing from specified interface save saved it in place
specified by --fifo.
--fifo=<path to file or pipe>
Save captured packet to file or send it through pipe.
--port=<port>
Set the listerner port. Port 5555 is the default.
--payload=<type>
Set the payload of the exported PDU. Default: data.
EXAMPLES
To see program arguments:
udpdump --help
To see program version:
udpdump --version
To see interfaces:
udpdump --extcap-interfaces
Example output:
interface {value=udpdump}{display=UDP Listener remote capture}
To see interface DLTs:
udpdump --extcap-interface=udpdump --extcap-dlts
Example output:
dlt {number=252}{name=udpdump}{display=Exported PDUs}
To see interface configuration options:
udpdump --extcap-interface=udpdump --extcap-config
Example output:
arg {number=0}{call=--port}{display=Listen port}{type=unsigned}{range=1,65535}{default=5555}{tooltip=The port the receiver listens on}
To capture:
udpdump --extcap-interface=randpkt --fifo=/tmp/randpkt.pcapng --capture
NOTE: To stop capturing CTRL+C/kill/terminate application.
SEE ALSO
wireshark(1), tshark(1), dumpcap(1), extcap(4)
NOTES
udpdump is part of the Wireshark distribution. The latest version of
Wireshark can be found at <https://www.wireshark.org>.
HTML versions of the Wireshark project man pages are available at:
<https://www.wireshark.org/docs/man-pages>.
AUTHORS
Original Author
---------------
Dario Lombardo <lomato[AT]gmail.com>
2.4.1 2017-08-29 udpdump(1)
wireshark 2.4.1 - Generated Wed Aug 30 18:53:19 CDT 2017