Select an Interface on Windows
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## Select an Interface on Windows

Winpcap references host network interfaces by number, not name. This means that you must determine the proper interface number for the network adapter that you plan to use. Use Toolkit pcapdevs utility will enumerate available host network adapters by number, MAC address and description. By default, Toolkit programs communicate with powerline devices on pcap interface `2` but another interface can be specified on the command line with the `-i` option:

Example 5.4. Selecting another Interface on Windows

    # int6k -i 3 ...

In the previous example, int6k will send and receive frames using host interface `3` instead of the default interface. Having to specify the interface can become tedious when entering commands manually. Presently there is no way to specify a default interface on WIndows platforms.

Example 5.5. Finding Interfaces on Windows

    # pcapdevs
     1 00:00:00:00:00:00 \Device\NPF_GenericDialupAdapter	(Adapter for generic dialup
     2 00:0E:2E:03:5F:B8 \Device\NPF_{4CFAABD5-C929-4942-914B-BDFE72B13611} (Realtek R
     3 00:C0:49:D5:CB:14 \Device\NPF_{73E0D2EF-6069-4831-B379-507025F2BDCD} (Realtek R
     4 00:0C:76:87:3E:3D \Device\NPF_{86B96905-3AA7-46F1-969A-6C23E3BBBA8B} (Broadcom

The previous example illustrates the use of Toolkit pcapdevs utility to identify available network interfaces by interface number, MAC address and description. The descriptions have been truncated in this example because they are too long. Devices having MAC address `00:00:00:00:00:00` are unavailable.

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