vdecapture

vdecapture captures packet data from a live VDE network and saves it to an output file in pcap format.

Install

get the source code, from the root of the source tree run:

$ mkdir build
$ cd build
$ cmake ..
$ make
$ sudo make install

Syntax

vdecapture [options] VNL output file

VNL is the Virtual Netowrk Locator as defined in vde_plug(1). output file is the pathanme of the output file or "-" to write data to the standard output.

Options

-c npkts, --count npkts : Leave when npkts packets have been captured.

-s nbytes, --count nbytes : Set the maximum size of the output file to nbytes bytes.

-t secs, --time secs : Leave after secs seconds.

-a, --append : append data to the output file if that file already exists.

-q, --quiet : Do not print captured packeet counter on stderr.

-h, --help : Display a short help message and exit.

Examples

vdecapture vde:///tmp/hub out.pcap

This command captures the packets received by the vde plug hub:///tmp/hub to the file out.pcap.

vdecapture vde:///tmp/hub - | wireshark -i - -k 

This command permits to trace live the packets on wireshark.

Author

Renzo Davoli, VirtualSquare Team. 2023