[Bluez-users] connection problems with pppd and 6630 over bluez

[Bluez-users] connection problems with pppd and 6630 over bluez

[Stefan Magdalinski]

I have pppd working over bluetooth, but have a strange problem; I only 
seem to be able to connect about 1/3 of attempts. If I retry it usually 
works, but some times it takes 5 or 6 goes.

how can I diagnose and fix the problem. I'm running bluez-2.16

thanks.

stef

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Stefan Magdalinski
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Re: [Bluez-users] connection problems with pppd and 6630 over bluez

[Marcel Holtmann]

Hi Stefan,

> I have pppd working over bluetooth, but have a strange problem; I only 
> seem to be able to connect about 1/3 of attempts. If I retry it usually 
> works, but some times it takes 5 or 6 goes.
> 
> how can I diagnose and fix the problem. I'm running bluez-2.16

use "hcidump -X -V" as root to see what happens on the Bluetooth side.
If that looks fine then use pppdump to see what PPP is doing.

Regards

Marcel




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Re: [Bluez-users] connection problems with pppd and 6630 over bluez

[Stefan Magdalinski]

[-- Attachment #1: Type: text/plain, Size: 681 bytes --]

Marcel Holtmann wrote:
> Hi Stefan,
> 
> 
>>I have pppd working over bluetooth, but have a strange problem; I only 
>>seem to be able to connect about 1/3 of attempts. If I retry it usually 
>>works, but some times it takes 5 or 6 goes.
>>
>>how can I diagnose and fix the problem. I'm running bluez-2.16
> 
> 
> use "hcidump -X -V" as root to see what happens on the Bluetooth side.
> If that looks fine then use pppdump to see what PPP is doing.
> 

I've attached the results of a two attempts to connect, the first 
failed, and the second succeeded. What am I looking for?

many thanks

stef

-- 
/*
Stefan Magdalinski
+447769 666528 (telephone)
smagdali (IM/flickr.com/etc)
*/

[-- Attachment #2: pppd-hcidump.txt.gz --]
[-- Type: application/x-gzip, Size: 5619 bytes --]

Re: [Bluez-users] connection problems with pppd and 6630 over bluez

[Marcel Holtmann]

Hi Stefan,

> >>I have pppd working over bluetooth, but have a strange problem; I only 
> >>seem to be able to connect about 1/3 of attempts. If I retry it usually 
> >>works, but some times it takes 5 or 6 goes.
> >>
> >>how can I diagnose and fix the problem. I'm running bluez-2.16
> > 
> > use "hcidump -X -V" as root to see what happens on the Bluetooth side.
> > If that looks fine then use pppdump to see what PPP is doing.
> 
> I've attached the results of a two attempts to connect, the first 
> failed, and the second succeeded. What am I looking for?

this is not a Bluetooth problem. This is your dialer script. In the
failure case you start PPP without getting the CONNECT response. You
even start PPP and three frames later your receive an OK. Use a dialer
like wvdial or check you logs for more details.

Regards

Marcel




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Re: [Bluez-users] connection problems with pppd and 6630 over bluez

[Stefan Magdalinski]

Marcel Holtmann wrote:
> Hi Stefan,
> 
> 
>>>>I have pppd working over bluetooth, but have a strange problem; I only 
>>>>seem to be able to connect about 1/3 of attempts. If I retry it usually 
>>>>works, but some times it takes 5 or 6 goes.
>>>>
>>>>how can I diagnose and fix the problem. I'm running bluez-2.16
>>>
>>>use "hcidump -X -V" as root to see what happens on the Bluetooth side.
>>>If that looks fine then use pppdump to see what PPP is doing.
>>
>>I've attached the results of a two attempts to connect, the first 
>>failed, and the second succeeded. What am I looking for?
> 
> 
> this is not a Bluetooth problem. This is your dialer script. In the
> failure case you start PPP without getting the CONNECT response. You
> even start PPP and three frames later your receive an OK. Use a dialer
> like wvdial or check you logs for more details.

thanks for the tip. I've switched to using the wvdial scripts from

http://julian.coccia.com/blog/index.php?m=200503&more=1

and now everything's working fine.

well almost fine; despite setting noauth in /etc/ppp/peers/gprs, it 
still wouldn't work without a dummy username and password in
gprs-wvdial.conf

My provider, Orange, doesn't need authentication, but doesn't seem to 
mind if you stick some random entries in the file to keep the script happy.

stef
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Stefan Magdalinski
+447769 666528 (telephone)
smagdali (IM/flickr.com/etc)
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