Re: [Bluez-users] Problem with dund and LG 325 phone.

[Marcel Holtmann <marcel@holtmann.org>]

Hi Eric,

> I have an LG PM-325 which I am trying to get DUN working with. It works under
> Windows, but I want to use linux.
> 
> I think the two devices are paired since I can do l2ping and get responses,
> but I still seem to be a few steps away from being able to do DUN.
> 
> When I type this, I expect to get a success message back, right? Instead I get 
> nothing:
> 
> [root@a122077 root]# dund -c 08:00:37:13:A1:C7 -n
> dund[5586]: Bluetooth DUN daemon
> dund[5586]: Searching for LAP on 08:00:37:13:A1:C7
> [root@a122077 root]#
> 
> I don't have to do anything with rfcomm before this, right? I also don't need 
> to run pand, right, since my device only supports DUN.
> 
> When I try to do a pppd call command, I get this in syslog:
> May 26 14:43:02 a122077 kernel: PPP generic driver version 2.4.2
> May 26 14:43:02 a122077 pppd[5708]: pppd 2.4.3 started by root, uid 0
> May 26 14:43:03 a122077 hcid[3602]: link_key_request (sba=00:10:60:AA:5C:CE, 
> dba=08:00:37:13:A1:C7)
> May 26 14:43:03 a122077 pppd[5708]: Failed to open /dev/rfcomm0: Connection 
> refused
> May 26 14:43:03 a122077 pppd[5708]: Exit.
> 
> which isn't surprising.

using dund for Dialup-Networking is the wrong way. The dund is for LAN
access using PPP. And yes, I know that the name is confusing.

What you need is to find the RFCOMM channel number for Dialup-Networking
with the help of

	sdptool search --bdaddr <bdaddr> dun

and then you bind a RFCOMM TTY port to that channel with

	rfcomm bind 0 <bdaddr> <channel>

After that you can use any dialer (for example wvdial) to setup your
dialup connection through /dev/rfcomm0.

Regards

Marcel




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