DNS settings for south American ISP

[Marcelo]

Binary package hint: network-manager

I am a member of the Ubuntu Uruguay community . In www.ubuntu.org.uy many users are asking how to connect the 3G modems in order to use the services of the local ISPs: ANCEL - CLARO - MOVISTAR. The network manager wizard lets you configure the connection graph for the local ISP but can not navigate because DNS does not work. The network manager overwrites /etc/resolv.conf and delete the DNS or put bad DNS and not work. I hope this will be resolved for Ubuntu 9.04 because many new users are not able to run modems and desist from using Ubuntu.

Thank you,
Marcelo
www.ubuntu.org.uy

[Alexander Sack (asac)]

if you go to connection editor and check the "IPv4" tab for your mobile broadband connection, does it list the right DNS server there?

[Alexander Sack (asac)]

otherwise, please provider the correct info for your provider (e.g. dns, APN, username/password) as we would need to update the provider database.

[Marcelo (marceloramone-gmail)]

networ manager erase or change the DNS by others that do not work. The only way to fix it is to manually enter the DNS in / etc / resolv.conf and then make a chattr + i / etc / resolv.conf. The connection parameters are fine, the problem is that the program deletes the DNS previously seted with the graphic wizard.

[Marcelo (marceloramone-gmail)]

"otherwise, please provider the correct info for your provider (e.g. dns, APN, username/password) as we would need to update the provider database." These settings are correct. The problem is with DNS. The program erase or change it for others.

[Alvaro Isaza (alvaro-isaza)]

I have the same problem (Ubuntu 8.10) my provider is Comcel in Colombia.
Info:
APN: internet.comcel.com.co
DNS. 198.228.90.211
username: comcelweb
password: comcelweb

I added:

<!-- Colombia -->
<country code="co">
   <provider>
       <name>Comcel</name>
       <gsm>
           <apn>internet.comcel.com.co</apn>
       </gsm>
       <username>comcelweb</username>
       <password>comcelweb</password>
       <dns>198.228.90.211</dns>
   </provider>
</country>

to serviceproviders.xml but the problem persists

[Stapel (wstapelberg)]

I am having the same problem with a Vodafone Huawei K3565 USB modem in the UK. I can ping www.google.com but I can not connect via Firefox. It does not help when I set the DNS manually using OpenDNS addresses, when I do, it disconnects immediately.

I will be happy to provide more info when requested.

[tgillett (tgillett)]

I am using a Huawei E220 3G modem on the Optus network in Australia.
I recently upgraded to Ubuntu 9.04 and after a couple of weeks I noticed that the mobile broadband was not working. (I only use it occasionally, usually I am on an ADSL connection)

The profile that Network Manager sets up for Optus 3G has these settings in IPv4 tab:
Method: Automatic (PPP) Addresses only
DNS Servers: 202.139.83.3, 192.65.91.129

The DNS IP addresses set by the Network Manager appear to be invalid. They do not respond to ping.

The Optus site lists these correct DNS addresses:
211.29.132.12, 198.142.0.51

Changing Network Manager to these addresses makes the mobile broadband work.

Another way to fix the problem is to change the Method to:
Automatic (PPP)
instead of the default:
Automatic (PPP) addresses only

This disables the DNS address field, and I assume gets the addresses automatically from the ISP.

I booted up from a 8.10 Ubuntu Live CD to check what the settings were. They appear to be the same as in 9.04, so I don't understand why my Optus modem used to work in 8.10.
Perhaps Optus has recently disabled some old DNS servers on one or both of the addresses used by Network Manager.

It may be better if Network Manager defaulted to the Method Automatic (PPP) setting and get the DNS addresses automatically.

[Rolf Leggewie (r0lf)]

This is only about the issue affecting users in Uruguay. tgillett and Stapel, please open a separate ticket each for your issues.

[Rolf Leggewie (r0lf)]

Marcelo, as Alexander pointed out, we need more information from you. Please provide the same information that Alvaro gave in his comment (APN, DNS IP, username and password).

[Marcelo (marceloramone-gmail)]

Hello,

I opened this bug some time ago.

In ubuntu 10.04 *the problem is solved*, I can connect perfectly with ISP
Ancel and huawei modem.

Thank you.-

2010/9/13 Rolf Leggewie <email address hidden>

> Marcelo, as Alexander pointed out, we need more information from you.
> Please provide the same information that Alvaro gave in his comment
> (APN, DNS IP, username and password).
>
> ** Changed in: network-manager (Ubuntu)
> Assignee: (unassigned) => Rolf Leggewie (r0lf)
>
> --
> DNS PROBLEMS
> https://bugs.launchpad.net/bugs/347718
> You received this bug notification because you are a direct subscriber
> of the bug.
>

--
¿Por qué sufrimos? http://www.youtube.comwatch?v=FK53c2jW2VU

[Marcelo (marceloramone-gmail)]

Hello,

I opened this bug some time ago.

In ubuntu 10.04 the problem is solved, I can connect perfectly with ISP Ancel and huawei modem.

Thank you.-

[Rolf Leggewie (r0lf)]

Marcelo, awesome. I'm glad to hear. Thank you for reporting back.

Alvaro, has your issue been fixed in the meantime as well?