Re: [gentoo-user] Fake MAC Address Bungling Wireless

[daid kahl <daidxor@gmail.com>]

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2009/2/15 Shawn Haggett <podge@podgeweb.com>

> daid kahl wrote:
>
>>
>>
>> 2009/2/15 daid kahl <daidxor@gmail.com <mailto:daidxor@gmail.com>>
>>
>>        )On Sat, 2009-02-14 at 20:05 +0900, daid kahl wrote:
>>        > I was bored and playing around with macchanger to change my
>>        Wireless
>>        > MAC address, and wireless has not worked since, even though
>>        I'm using
>>        > my hardware MAC address again.  I'm usually using
>>        NetworkManager, but
>>        > I
>>
>>
>> Well, no obvious solutions after 7 hours of actively trying things, so
>> I'll restore from backup.
>> For those interested, I deleted files from /var/lib/dhcpbd, and this
>> allowed me to get new IP addresses, but all within the faulty subdomain of
>> California.  I tried on another wireless networks, and still my machine
>> tries to assign me an IP within the California domain.  I reinstalled my
>> entire networking software (short of a kernel recompile), and deleted and
>> remade any network configuration files I could find that might be relevant,
>> and still the problem persisted.   I used wicd to assign myself static IP
>> and DNS with known values that are functional, and then the network was
>> recognized, but I could not access anything.
>>
> It's not a California address. It's an IPv4LL address, used when a dhcp
> server can't be found adn is related to the zeroconf useflag the other
> poster mentioned. Read:
> http://en.wikipedia.org/wiki/Zero_configuration_networking
>
> So it is.  I was looking up regions and IP addresses trying to figure out
what kind of IP I had.  In any case, I tried installing dhcpcd with the
-zeroconf useflag, and I was still getting this sort of IP, so I don't think
it's quite as simple as that.  This then relates to my earlier query of how
one resets a IP v4 LL address.  Or perhaps changing the MAC address *does*
reset the IP v4 LL address, but then the question becomes, how can you get
back the behavior of letting the network give you an address, which is
removed or altered by a change of MAC.

~daid

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