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On Mon, Feb 26, 2007 at 11:23:15PM +0100, Nino Dehne wrote:
> I'm using 3 tap(4) instances on a system. When a tap(4) interface is
> created, the following kernel messages appear:
>=20
>    tap0: faking Ethernet device
>    tap0: Ethernet address f2:0b:a4:91:b1:0e
>=20
> Now I'm not sure I really need that information cluttering dmesg per
> default, since it provides no real information. I know that an
> Ethernet device is being faked by virtue of issuing the ifconfig create
> command. If that were to fail, ifconfig would be telling me. So I don't
> need to check the kernel messages. Also, I can query the resulting random
> MAC address via sysctl.
>=20
> One thing that I thought about was having these messages as a kind of
> audit logging in case the log-reading admin wasn't the one creating the
> interfaces. But then all interface creation should have a message logged.
>=20
> Thus I really think this should be debug output. Similarly, etherip(4)
> devices output the following:
>=20
>    etherip0: Ethernet address f2:0b:a5:18:83:0b
>=20
> It's a bit more terse, but nevertheless redundant IMHO. At the very
> least, they both should be consistent.
>=20
> Any opinions?

Well, the original idea of tap was to pretend to be an Ethernet device
and kind of serve as a basic skeleton for a driver.  It's grown a bit
outside that scope, though.

What you say makes perfect sense;  I'll remove the first line from tap
output and aprint_verbose-ify the other.

--=20
Quentin Garnier - cube@cubidou.net - cube@NetBSD.org
"You could have made it, spitting out benchmarks
Owe it to yourself not to fail"
Amplifico, Spitting Out Benchmarks, Hometakes Vol. 2, 2005.

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