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Date: Fri, 13 Mar 2009 16:34:10 +0800
Message-ID: <6edf6b480903130134k429c931ctcaa41c93b49c1a31@mail.gmail.com>
Subject: Re: dund: how to config for handset platform
From: yesir yao <yesiryao@gmail.com>
To: David Sainty <dave@dtsp.co.nz>
Cc: linux-bluetooth@vger.kernel.org
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2009/3/12 David Sainty <dave@dtsp.co.nz>:
> yesir yao wrote:
>>>> after I run "dund --listen --dialup --msdun --nodetach"
>>>>
>>> I'm afraid dund is obsolete in Bluez 4. I think the right way to do it
>>> is to use rfcomm to create a serial device like /dev/rfcomm0 and use
>>> pppd to dial-up through that.
>>>
>>
>>
>> I think, It is on the Data terminal side, not for the Gateway side.
>> the profile looks like:
>> pc (Data terminal : run pppd and dial to /dev/rfcomm0 )
>> --> handset (Gateway : with bluetooth chip and modem on tty)
>> --> gsm (gprs) --> net
>>
>> now, i want to run "dund --dialup --msdun" on handset,
>> and receive ppp packet from pc, then send those to modem(ttyS1).
>>
>
> I do essentially the following to provide IP connectivity over bluetooth
> to my Palm:
>
> : ${rfdevice:=rfcomm0}
> sysctl -w net.ipv4.ip_forward=1
> sdptool add --channel=1 SP
> rfcomm --encrypt watch "$rfdevice" 1 pppd '{}'
> "${localIP}:${bluetoothIP}" local nodetach noauth proxyarp $dns
>
> This is with a recent BlueZ 4.x rfcomm. ?I'm using an old kernel, which
> has terrible bugs that are hopefully resolved in newer kernels (if I
> disconnect from the Palm end before the Linux end, rfcomm seg faults
> [might be a user level bug there] and I need to reboot in order to be
> able to reconnect again).

there are two articles which maybe are useful for you:

http://www.newt.com/debian/treo650.html
http://spench.net/drupal/resources/linuxbluetoothppp