Subject: Re: [Bluez-users] Problems with Bridging and PAN Profile
From: Christoph Scholz <scholz@cs.uni-bonn.de>
To: Fredrik Noring <noring@nocrew.org>
Cc: bluez-users@lists.sourceforge.net
In-Reply-To: <1073853082.22680.58.camel@akka.yeti.nocrew.org>
References: <1073656142.3037.32.camel@willie.informatik.uni-bonn.de>
	 <1073853082.22680.58.camel@akka.yeti.nocrew.org>
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Message-Id: <1073900688.1792.7.camel@willie.informatik.uni-bonn.de>
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Date: Mon, 12 Jan 2004 10:44:49 +0100

Hi Fredrik,

Actually, the problems I experienced are different since the PAN
connection works flawlessly. It is only the Linux bridge device that
does not seem to handle multiple interfaces with the same source MAC
address very well.

Which kind of USB-driver do you use? I also had problems with "uhci".
These were gone after switching to "usb-uhci".

Regards,

Christoph


On Sun, 2004-01-11 at 21:31, Fredrik Noring wrote:
> Hi Christoph,
> 
> fre 2004-01-09 klockan 14.49 skrev Christoph Scholz:
> > Does anyone of you experienced similar problems? Any ideas on how to
> > resolve this?
> 
> I'm trying to use a PAN too. After some initial problems I finally
> had a working bnep0 interface between two Linux computers and it worked
> for about 20 minutes. For some strange reason though, the bnep0
> interface disappeared every few minutes so I had to do "pand --connect
> xxx" to get it back again.
> 
> After those 20 minutes, "pand --connect xxx" stopped working too and 
> began to crash mostly with "Connection timed out(110)" and sometimes
> "Function not implemented(38)". Some things that worked before for
> example "l2ping" also stopped working at this point. 
> 
> The "hcitool scan" command still displayed the other device though
> and "hciconfig -a" produced something that looks OK to me:
> 
> hci0:   Type: USB
>         BD Address: 00:03:C9:2A:C4:A8 ACL MTU: 377:10  SCO MTU: 16:0
>         UP RUNNING PSCAN ISCAN
>         RX bytes:60997 acl:1045 sco:0 events:986 errors:0
>         TX bytes:136820 acl:1072 sco:0 commands:154 errors:0
>         Features: 0xff 0xfd 0x05 0x00 0x00 0x00 0x00 0x00
>         Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3
>         Link policy: HOLD SNIFF PARK
>         Link mode: SLAVE ACCEPT
>         Name: '0'
>         Class: 0x000100
>         Service Classes: Unspecified
>         Device Class: Computer, Uncategorized
>         HCI Ver: 1.1 (0x1) HCI Rev: 0x2 LMP Ver: 1.1 (0x1) LMP Subver: 0x1007
>         Manufacturer: Broadcom Corporation (15)
> 
> One of the boxes runs a Fedora kernel and the other is patched with
> patch-2.4.18-mh10 (Dec 15, 2003). The other tools are "bluez-libs-2.5",
> "bluez-utils-2.4", "bluez-sdp-1.5", "bluez-pan-1.1", "bluez-bluefw-1.0".
> 
> Is it possible to have a reliable PAN based connection between two Linux
> computers? The Bluez/pand combination appears a bit unstable to me as it
> works for a few minutes at a time and then stops working until reboot.
> 
> Thanks,
> Fredrik
> 
> 


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