As the "Capture Interfaces" dialog is showing live captured data, it is
consuming a lot of system resources. Close this dialog as soon as
possible to prevent excessive system load.
Not all available interfaces may be displayed!
This dialog box will only show the local interfaces Wireshark knows
of. It will not show interfaces marked as hidden in Section 9.5.1, “Interface Options”.
As Wireshark might not be able to detect all local interfaces, and it
cannot detect the remote interfaces available, there could be more capture
interfaces available than listed.
Figure 4.1. The "Capture Interfaces" dialog box on Microsoft Windows
Figure 4.2. The "Capture Interfaces" dialog box on Unix/Linux
The first IP address Wireshark could resolve from this interface.
If no address could be resolved (e.g. no DHCP server available),
"unknown" will be displayed. If more than one IP address could be
resolved, only the first is shown (unpredictable which one in that
The number of packets captured from this interface, since this
dialog was opened. Will be greyed out, if no packet was captured
in the last second.
Number of packets captured in the last second. Will be greyed out,
if no packet was captured in the last second.
Stop a currently running capture.
Start a capture on this interface immediately, using the settings
from the last capture.