4.4. The “Capture Interfaces” dialog box

When you select CaptureOptions…​ from the main menu Wireshark pops up the “Capture Interfaces” dialog box as shown in Figure 4.1, “The “Capture Interfaces” dialog box on Microsoft Windows” or Figure 4.2, “The “Capture Interfaces” dialog box on Unix/Linux”.

[Note]Both you and your OS can hide interfaces

This dialog box will only show the local interfaces Wireshark can access. It will also hide interfaces marked as hidden in Section 11.5.1, “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.

It is possible to select more than one interface and capture from them simultaneously.

Figure 4.1. The “Capture Interfaces” dialog box on Microsoft Windows

ws capture interfaces win32

Figure 4.2. The “Capture Interfaces” dialog box on Unix/Linux

ws capture interfaces

Device (Unix/Linux only)
The interface device name.
Description
The interface description provided by the operating system, or the user defined comment added in Section 11.5.1, “Interface Options”.
IP
The first IP address Wireshark could find for this interface. You can click on the address to cycle through other addresses assigned to it, if available. If no address could be found “none” will be displayed.
Packets
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.
Packets/s
Number of packets captured in the last second. Will be greyed out, if no packet was captured in the last second.
Stop
Stop a currently running capture.
Start
Start a capture on all selected interfaces immediately, using the settings from the last capture or the default settings, if no options have been set.
Options
Open the Capture Options dialog with the marked interfaces selected. See Section 4.5, “The “Capture Options” dialog box”.
Details (Microsoft Windows only)
Open a dialog with detailed information about the interface. See Section 4.10, “The “Interface Details” dialog box”.
Help
Show this help page.
Close
Close this dialog box.