[Bluez-users] problems with network via bluetooth

[Bluez-users] problems with network via bluetooth

[Aldo Maggi]

my home lan is made up with three desktops.
one of them (GW) has 3 eth cards the first one links to the router
the other 2 connect PC1 and PC2 to GW.
PC1 has 2 eth cards, the first one links it to GW and i use the second
to connect, from time to time, my notebook (NB) to the lan.

recently i have bought 2 bluetooth/usb adapters because i wished to
create a bluetooth net between PC1 and NB

in PC1 i have Ubuntu Gutsy (but i have the problem i'm going to tell
also with Debian Lenny which is installed in PC1 as well) and in the
NB i have Debian Lenny.

the two bluetooth systems see each other:

if i run in the NB:  hcitool scan
correctly get:
11:11:11:11:11:11   paperino-0
 
the same in PC1:
00:15:83:B3:D3:9A    paperinik-0

in PC1 in the /etc/bluetooth/hcid.conf i have the line:
lm accept,master;

in NB in the same file:
lm accept;

in PC1 i run:
pand  --listen --role NAP

in NB i run:
pand --role PANU --persist --search

and i can read in the relevant /var/log/daemon.log the following:
in PC1 - pand: new Connection from 00:15:83:B3:D3:9A bnep0
in NB - pand: Connecting to 11:11:11:11:11:11
        pand: bnep0 Connected

then i run
in PC1: ifconfig bnep0 192.168.6.1 netmask 255.255.255.0
in  NB: ifconfig bnep0 192.168.6.2 netmask 255.255.255.0

and i can read in the relevant /var/log/daemon.log the following:
in PC1
Jun  2 18:15:59 paperino avahi-daemon[4819]: Joining mDNS multicast
group on interface bnep0.IPv4 with address 192.168.6.1. 
Jun  2 18:15:59
paperino avahi-daemon[4819]: New relevant interface bnep0.IPv4 for
mDNS. 
Jun  2 18:15:59 paperino avahi-daemon[4819]: Registering new
address record for 192.168.6.1 on bnep0.IPv4. 
Jun  2 18:16:00 paperino
avahi-daemon[4819]: Registering new address record for
fe80::1311:11ff:fe11:1111 on bnep0.*. 
Jun  2 18:19:53 paperino
ntpd[4885]: Listening on interface #7 bnep0,
fe80::1311:11ff:fe11:1111#123 Enabled 
Jun  2 18:19:53 paperino
ntpd[4885]: Listening on interface #8 bnep0, 192.168.6.1#123 Enabled

and in NB
Jun  2 18:17:07 paperinik avahi-daemon[2750]: New relevant interface bnep0.IPv4 for mDNS.
Jun  2 18:17:07 paperinik avahi-daemon[2750]: Joining mDNS multicast group on interface bnep0.IPv4 with address 192.168.6.2.
Jun  2 18:17:07 paperinik avahi-daemon[2750]: Registering new address record for 192.168.6.2 on bnep0.

the 192.168.6.0 net on bnep0 is correctly shown by netstat -nr in both
PC1 and NB

but if i do ping from one machine the ip of the other i get Destination
Host Unreachable 

where do you think i'm wrong?
thanks

 

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Re: [Bluez-users] problems with network via bluetooth

[Marcel Holtmann]

Hi Aldo,

> my home lan is made up with three desktops.
> one of them (GW) has 3 eth cards the first one links to the router
> the other 2 connect PC1 and PC2 to GW.
> PC1 has 2 eth cards, the first one links it to GW and i use the second
> to connect, from time to time, my notebook (NB) to the lan.
> 
> recently i have bought 2 bluetooth/usb adapters because i wished to
> create a bluetooth net between PC1 and NB
> 
> in PC1 i have Ubuntu Gutsy (but i have the problem i'm going to tell
> also with Debian Lenny which is installed in PC1 as well) and in the
> NB i have Debian Lenny.
> 
> the two bluetooth systems see each other:
> 
> if i run in the NB:  hcitool scan
> correctly get:
> 11:11:11:11:11:11   paperino-0

this is not a valid MAC address. And PAN/Ethernet will fail with it.

Regards

Marcel



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Re: [Bluez-users] problems with network via bluetooth

[Raymond Ingles]

On 6/4/07, Marcel Holtmann <marcel@holtmann.org> wrote:

> > if i run in the NB:  hcitool scan
> > correctly get:
> > 11:11:11:11:11:11   paperino-0
>
> this is not a valid MAC address. And PAN/Ethernet will fail with it.

 How does one change the MAC address with a USB bluetooth adapter? (I
understand that you can't change the actual value in the firmware, but
isn't there a way to modify it in software, the way many Ethernet
cards can?)

 I ask because I have a cheap Bluetooth adapter ("Integrated System
Solution Corp. KY-BT100 Bluetooth Adapter" according to lsusb) that
uses that MAC address, too. It works for talking to my Palm Treo, but
it'd be nice to be able to set it to a more conventional, legal value.

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Re: [Bluez-users] problems with network via bluetooth

[Marcel Holtmann]

Hi Raymond,

> > > if i run in the NB:  hcitool scan
> > > correctly get:
> > > 11:11:11:11:11:11   paperino-0
> >
> > this is not a valid MAC address. And PAN/Ethernet will fail with it.
> 
>  How does one change the MAC address with a USB bluetooth adapter? (I
> understand that you can't change the actual value in the firmware, but
> isn't there a way to modify it in software, the way many Ethernet
> cards can?)
> 
>  I ask because I have a cheap Bluetooth adapter ("Integrated System
> Solution Corp. KY-BT100 Bluetooth Adapter" according to lsusb) that
> uses that MAC address, too. It works for talking to my Palm Treo, but
> it'd be nice to be able to set it to a more conventional, legal value.

there are ways to change the address, but I don't support any of them.
So you are on your own. However I would return that dongle since it is
actually illegal.

Regards

Marcel



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Re: [Bluez-users] problems with network via bluetooth

[Aldo Maggi]

Il Mon, 04 Jun 2007 17:24:23 +0200
Marcel Holtmann <marcel@holtmann.org> ha scritto:

> Hi Aldo,
> 
> > my home lan is made up with three desktops.
> > one of them (GW) has 3 eth cards the first one links to the router
> > the other 2 connect PC1 and PC2 to GW.
[...] 
> > if i run in the NB:  hcitool scan
> > correctly get:
> > 11:11:11:11:11:11   paperino-0
> 
> this is not a valid MAC address. And PAN/Ethernet will fail with it.
> 
> Regards
> 
> Marcel


ok, thanks for your advice!
i've bought another bluetooth/usb adapter and now everything works!

thanks again! :-)
aldo

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