User Guide

Capturing Live Network Data

Figure 4.3. The "Capture Options" dialog box

Tip!

If you are unsure which options to choose in this dialog box, just try keeping the defaults as

this should work well in many cases.

You can set the following fields in this dialog box:

4.5.1. Capture frame

Interface (Windows only) The drop down list allows you to select the group of interfaces

you want look at. Normally that would be the local interfaces, but

here you can also select a remote interface. Any previously opened

remote interfaces will be added to this list also.

Interface This field specifies the interface you want to capture on. You

can only capture on one interface, and you can only capture on

interfaces that Wireshark has found on the system, either local or

remote. It is a drop-down list, so simply click on the button on the

right hand side and select the interface you want. It defaults to the

first non-loopback interface that supports capturing, and if there

are none, the first loopback interface. On some systems, loopback

interfaces cannot be used for capturing

Note

loopback interfaces are not available on Windows

platforms.

This field performs the same function as the -i <interface>

command line option.