re: 3G DNS issue with Modem Manager / Network Manager

[Dan Williams <dcbw redhat com>]

On Wed, 2011-06-29 at 09:03 +0800, MU Yongjian wrote:
> The error DNS is: 10.11.12.13 & 10.11.12.14

That's an error in negotiation between pppd on your computer and the
data stick itself.  It's a bug in pppd actually; most cases of it were
fixed in pppd 2.4.5, and NetworkManager compensates by using known good
nameservers instead, so that you can at least reach sites.  Basically,
if you aren't using pppd 2.4.5 you should upgrade, and if you are, we'd
need to get verbose pppd debug dumps of the negotiation between it and
the data stick and file a bug upstream.  To do that, you stop
NetworkManager, and then run it as root with:

NM_PPP_DEBUG=1 NetworkManager --no-daemon

and then try to reproduce the problem and mail the log to me.  It may
include sensitive data.

Dan

> James
> 
> -----邮件原件-----
> 发件人: Dan Williams [mailto:dcbw redhat com] 
> 发送时间: 2011年6月29日 4:04
> 收件人: MU Yongjian
> 抄送: networkmanager-list gnome org
> 主题: Re: 3G DNS issue with Modem Manager / Network Manager
> 
> On Mon, 2011-06-27 at 19:08 +0800, MU Yongjian wrote:
> > Hello all,
> > 
> >  
> > 
> >          When I use modem manager (Network manager) to connect
> > 3G(WCDMA), it always get error DNS address. Modifying the DNS
> > manually, it can access internet normally. 
> 
> What DNS addresses get returned by PPP in the error case?
> 
> Dan
> 
> > SPEEDUP SU9800 USB dongle, WCDMA SIM card.
> > 
> >          Then I change another SIM card(also WCDMA, the same carrier),
> > it can get right DNS.
> > 
> >          Is there something wrong with modem manager or SIM card?
> > 
> >  
> > 
> > Best Regard,
> > 
> > James
> > 
> >  
> > 
> >  
> > 
> > 
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> > networkmanager-list gnome org
> > http://mail.gnome.org/mailman/listinfo/networkmanager-list
> 
> 
> 
>