Re: [TCLUG:23193] what's tap0?

["Ryan Bethke" <rydianb@hotmail.com>]

> I'm still working on getting my new box going and I notice that I've got a
> 'tap0' entry listed when I do an ifconfig. I have no idea where that comes
> from.
>
> -Tim


I believe it's the ethertap driver.

From the ethertap docs:

    Ethertap provides packet reception and transmission for user
    space programs. It can be viewed as a simple Ethernet device,
    which instead of receiving packets from a network wire, it receives
    them from user space.

    Ethertap can be used for anything from AppleTalk to IPX to even
    building bridging tunnels. It also has many other general purpose
    uses.

    Ethertap also can do ARP for you, although this is not enabled by
    default.

Ryan Bethke