[Bluez-users] A PAN newbie

[Bluez-users] A PAN newbie

[Eduardo Bezerra]

Hi folks,


   I'm starting to use Bluez to create a PAN. I'm using the 2.6.x linux kernel.
I did the following:

####
GN:
####

Edited the file /etc/bluetooth/hci.conf and enabled the "lm accept,
master" option.

# hcid -f /etc/bluetooth/hci.conf
# sdpd
# sdptool add GN 
# modprobe bnep
# pand --listen --role GN -n


####
PANU:
####

# hcid -f /etc/bluetooth/hci.conf
# sdpd
# modprobe bnep
# pand --connect BT_ADDRESS


  After the connection establishment I configured a LAN with the 10.0.0.0/24 IP
configuration. So:

####
GN:
####

# ifconfig bnep0 10.0.0.1 netmask 255.255.255.0

####
PANU:
####

# ifconfig bnep0 10.0.0.2 netmask 255.255.255.0


  At this point I could ping the two host:

####
GN:
####

# ping 10.0.0.2 # that's ok

####
PANU:
####

# ping 10.0.0.1 # that's ok

	So, I tried to add a second PANU with:

# hcid -f /etc/bluetooth/hci.conf
# sdpd
# modprobe bnep
# pand --connect BT_ADDRESS

	It connected with the GN, but when I tried:
# ifconfig bnep0 10.0.0.3 netmask 255.255.255.0
# ping 10.0.0.1

	The ping could not reach the GN host even the other
PANU (ping 10.0.0.2). I tried to do a ping from the GN to
the new PANU and from the old PANU to the new PANU
and the problem kept. 


	What am I doing wrong? 

 	Any help is very welcome.
 
 cheers,



Eduardo Bezerra Valentin


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Re: [Bluez-users] A PAN newbie

[Marcel Holtmann]

Hi Eduardo,

>    I'm starting to use Bluez to create a PAN. I'm using the 2.6.x linux kernel.
> I did the following:
> 
> ####
> GN:
> ####
> 
> Edited the file /etc/bluetooth/hci.conf and enabled the "lm accept,
> master" option.
> 
> # hcid -f /etc/bluetooth/hci.conf
> # sdpd
> # sdptool add GN 
> # modprobe bnep
> # pand --listen --role GN -n
> 
> 
> ####
> PANU:
> ####
> 
> # hcid -f /etc/bluetooth/hci.conf
> # sdpd
> # modprobe bnep
> # pand --connect BT_ADDRESS
> 
> 
>   After the connection establishment I configured a LAN with the 10.0.0.0/24 IP
> configuration. So:
> 
> ####
> GN:
> ####
> 
> # ifconfig bnep0 10.0.0.1 netmask 255.255.255.0
> 
> ####
> PANU:
> ####
> 
> # ifconfig bnep0 10.0.0.2 netmask 255.255.255.0
> 
> 
>   At this point I could ping the two host:
> 
> ####
> GN:
> ####
> 
> # ping 10.0.0.2 # that's ok
> 
> ####
> PANU:
> ####
> 
> # ping 10.0.0.1 # that's ok
> 
> 	So, I tried to add a second PANU with:
> 
> # hcid -f /etc/bluetooth/hci.conf
> # sdpd
> # modprobe bnep
> # pand --connect BT_ADDRESS
> 
> 	It connected with the GN, but when I tried:
> # ifconfig bnep0 10.0.0.3 netmask 255.255.255.0
> # ping 10.0.0.1
> 
> 	The ping could not reach the GN host even the other
> PANU (ping 10.0.0.2). I tried to do a ping from the GN to
> the new PANU and from the old PANU to the new PANU
> and the problem kept. 

you will get a second (bnep1) interface on the master machine and thus a
bridge is needed to connect these.

Regards

Marcel




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Re: [Bluez-users] A PAN newbie

[Eduardo Bezerra]

Hi all,

  Thanks for the quick response. It's truth that I get a second bnep
in the GN, the bnep1. But
I tried to continue the configuration with a "ifconfig bnep1 10.0.0.4"
and the problem kept.
I thinked that at this point (with the two PANU connected and
configured), I could ping
the bnep0 with the old PANU and ping the bnep1 with the new PANU, even
without the
bridge configuration in the GN.
  Ok, and how can I do a bridge configuration in the master ??
  Is it just creating statics routes between the two bnep's?


Thanks a lot,



Eduardo Bezerra Valentin

On Wed, 16 Mar 2005 23:28:59 +0100, Marcel Holtmann <marcel@holtmann.org> wrote:
> Hi Eduardo,
> 
> >    I'm starting to use Bluez to create a PAN. I'm using the 2.6.x linux kernel.
> > I did the following:
> >
> > ####
> > GN:
> > ####
> >
> > Edited the file /etc/bluetooth/hci.conf and enabled the "lm accept,
> > master" option.
> >
> > # hcid -f /etc/bluetooth/hci.conf
> > # sdpd
> > # sdptool add GN
> > # modprobe bnep
> > # pand --listen --role GN -n
> >
> >
> > ####
> > PANU:
> > ####
> >
> > # hcid -f /etc/bluetooth/hci.conf
> > # sdpd
> > # modprobe bnep
> > # pand --connect BT_ADDRESS
> >
> >
> >   After the connection establishment I configured a LAN with the 10.0.0.0/24 IP
> > configuration. So:
> >
> > ####
> > GN:
> > ####
> >
> > # ifconfig bnep0 10.0.0.1 netmask 255.255.255.0
> >
> > ####
> > PANU:
> > ####
> >
> > # ifconfig bnep0 10.0.0.2 netmask 255.255.255.0
> >
> >
> >   At this point I could ping the two host:
> >
> > ####
> > GN:
> > ####
> >
> > # ping 10.0.0.2 # that's ok
> >
> > ####
> > PANU:
> > ####
> >
> > # ping 10.0.0.1 # that's ok
> >
> >       So, I tried to add a second PANU with:
> >
> > # hcid -f /etc/bluetooth/hci.conf
> > # sdpd
> > # modprobe bnep
> > # pand --connect BT_ADDRESS
> >
> >       It connected with the GN, but when I tried:
> > # ifconfig bnep0 10.0.0.3 netmask 255.255.255.0
> > # ping 10.0.0.1
> >
> >       The ping could not reach the GN host even the other
> > PANU (ping 10.0.0.2). I tried to do a ping from the GN to
> > the new PANU and from the old PANU to the new PANU
> > and the problem kept.
> 
> you will get a second (bnep1) interface on the master machine and thus a
> bridge is needed to connect these.
> 
> Regards
> 
> Marcel
> 
> -------------------------------------------------------
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>


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Re: [Bluez-users] A PAN newbie

[Marcel Holtmann]

Hi Eduardo,

>   Thanks for the quick response. It's truth that I get a second bnep
> in the GN, the bnep1. But
> I tried to continue the configuration with a "ifconfig bnep1 10.0.0.4"
> and the problem kept.
> I thinked that at this point (with the two PANU connected and
> configured), I could ping
> the bnep0 with the old PANU and ping the bnep1 with the new PANU, even
> without the
> bridge configuration in the GN.

get yourself a network howto to understand why this is not working.

>   Ok, and how can I do a bridge configuration in the master ??
>   Is it just creating statics routes between the two bnep's?

The bridge is another virtual network card the combines your two BNEP
interface into a new one. This is of course not all a bridge can do, but
this is what you need. However this is not BlueZ specific. This is about
network administration and thus read a howto about that or take a look
at the PAN howto.

Regards

Marcel




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Re: [Bluez-users] A PAN newbie

[Eduardo Bezerra]

Hi Marcel,

 Thanks. I will get.


On Thu, 17 Mar 2005 15:05:29 +0100, Marcel Holtmann <marcel@holtmann.org> wrote:
> Hi Eduardo,
> 
> >   Thanks for the quick response. It's truth that I get a second bnep
> > in the GN, the bnep1. But
> > I tried to continue the configuration with a "ifconfig bnep1 10.0.0.4"
> > and the problem kept.
> > I thinked that at this point (with the two PANU connected and
> > configured), I could ping
> > the bnep0 with the old PANU and ping the bnep1 with the new PANU, even
> > without the
> > bridge configuration in the GN.
> 
> get yourself a network howto to understand why this is not working.
> 
> >   Ok, and how can I do a bridge configuration in the master ??
> >   Is it just creating statics routes between the two bnep's?
> 
> The bridge is another virtual network card the combines your two BNEP
> interface into a new one. This is of course not all a bridge can do, but
> this is what you need. However this is not BlueZ specific. This is about
> network administration and thus read a howto about that or take a look
> at the PAN howto.
> 
> Regards
> 
> Marcel
> 
> -------------------------------------------------------
> SF email is sponsored by - The IT Product Guide
> Read honest & candid reviews on hundreds of IT Products from real users.
> Discover which products truly live up to the hype. Start reading now.
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> _______________________________________________
> Bluez-users mailing list
> Bluez-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/bluez-users
>


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Re: [Bluez-users] A PAN newbie

[Xavier Garreau]

> ####
> GN:
> ####
> 
> Edited the file /etc/bluetooth/hci.conf and enabled the "lm accept,
> master" option.
> 
> # hcid -f /etc/bluetooth/hci.conf
> # sdpd
> # sdptool add GN 
> # modprobe bnep
> # pand --listen --role GN -n

Sorry if I'm wrong but i think the newest version of pand do the sdp 
stuff (you don't need sdptool add GN)

Please correct me if I'm wrong ...

Regards,
Xavier Garreau


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Re: [Bluez-users] A PAN newbie

[Marcel Holtmann]

Hi Xavier,

> > ####
> > GN:
> > ####
> > 
> > Edited the file /etc/bluetooth/hci.conf and enabled the "lm accept,
> > master" option.
> > 
> > # hcid -f /etc/bluetooth/hci.conf
> > # sdpd
> > # sdptool add GN 
> > # modprobe bnep
> > # pand --listen --role GN -n
> 
> Sorry if I'm wrong but i think the newest version of pand do the sdp 
> stuff (you don't need sdptool add GN)
> 
> Please correct me if I'm wrong ...

this is correct. The latest pand and dund version add the SDP record
unless you call them with --nosdp.

Regards

Marcel




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