From: "Raymond Ingles" <sorceror171@gmail.com>
To: "BlueZ users" <bluez-users@lists.sourceforge.net>
Subject: Re: [Bluez-users] 'hcitool scan' failing
Date: Wed, 31 Jan 2007 10:30:15 -0500 [thread overview]
Message-ID: <a481fbf0701310730n136e6bd0x2371ff37272e098f@mail.gmail.com> (raw)
In-Reply-To: <87tzy89q6p.fsf@nandini.home>
On 1/30/07, Mahesh T. Pai <paivakil@gmail.com> wrote:
>
> I am trying to set up bluetooth networking on two systems running
> debian unstable. One is an i386 and other is running amd64. The
> OS/software is otherwise identical for both systems.
> Bus 001 Device 002: ID 1131:1001 Integrated System Solution Corp. KY-BT100 Bluetooth Adapter
[...]
> Out put of hciconfig -a is:-
>
> hci0: Type: USB
> BD Address: 11:11:11:11:11:11 ACL MTU: 678:8 SCO MTU: 48:10
Here's the corresponding output on my system:
Bus 001 Device 024: ID 1131:1001 Integrated System Solution Corp.
KY-BT100 Bluetooth Adapter
hci0: Type: USB
BD Address: 11:11:11:11:11:11 ACL MTU: 678:8 SCO MTU: 64:10
Note my BD address is also "11:11:11:11:11:11". These cheap dongles
appear to all have the same BD address. That will cause problems if
two of them are in range of each other; it's similar to having to
Ethernet cards on the same network with the same MAC address. This is
a violation of the Bluetooth spec - those IDs are supposed to be
unique. I suppose you get what you pay for.
If the BD address is the same for both machines, I don't think it's
going to be possible to get them to talk to each other. They should be
able to talk to other devices with other, unique BD addresses, but
they will get seriously confused trying to communicate with each
other.
Some Ethernet cards allow you to change their MAC address; anyone
know of a way to change a dongle's BD address?
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next prev parent reply other threads:[~2007-01-31 15:30 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-01-30 21:10 [Bluez-users] 'hcitool scan' failing Mahesh T. Pai
2007-01-31 3:49 ` Mahesh T. Pai
2007-01-31 15:30 ` Raymond Ingles [this message]
2007-01-31 17:17 ` Mahesh T. Pai
2007-01-31 18:34 ` Raymond Ingles
2007-02-02 20:14 ` Mahesh T. Pai
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