Problems using anything apart from Konqueror

**Christian Kullmann** · 07-08-2006, 11:21 AM

Hi there,

i just started Knoppix for the first time and i think it is quite nice.
However, when trying to access the web, the only option available is using Konqueror, Firefox would not do the trick.
I tried playing around with the WineTool a bit, which seemed to be trying to connect to the web somehow, but could not manage either.

The gateway and DHCP is set correctly, since it is working fine with Windows XP and Konqueror does not seem to bother either (as i am wrting in this forum using Knoppix and Konqueror).
It SEEMED, that there was a DNS error or something like that, but i cannot confirm that. Trying nslookup in a console or pinging web.de for example works fine (in a console), but not using Firefox.

Can someone give me a hint as to where to peek into, which configuration to look at or such?
In Firefox i only found an option to set a proxy, but nothing else concerning net configuration.

If you need any more information, please let me know.

Thank you very much in advance.
Christian

**rusty** · 07-08-2006, 02:22 PM

Here's a couple of things to try.

First, please post what version of knoppix and your hardware setup including your network equipment.

Of course you've checked the connection settings in edit, preferences in firefox.

If you want to monitor the network traffic you could try using ethereal:

First you need to set a root password: k-->knoppix-->rootshell
type: passwd , enter a password then minimize the window

Then start ethereal, k-->internet ethereal. Enter the password you just set.

Click capture, options and check the box for Update packets in real time , and then click the box for Automatic scrolling of live capture, then click the start button.

Now start firefox . Take a look at the ethereal output and see if anything suggests what the problem might be. you can stop the capture and scroll up to look over things.

Theres also another browser you can try: Lynx, which is not graphical but it might be interesting to see if it works. k-->internet--lynx.

HTH

**Christian Kullmann** · 07-09-2006, 10:04 AM

Hi there,
thank you for the quick answer.
I downloaded and burned the knoppix dvd just yesterday. The version, according to the version document on disk is "5.0.1 2006-06-01".

My machine is a AMD Athlon 3200 XP+ on an Asus Board A7N8X with an nVidia chipset and two network cards on board.

Ethereal revealed, that only konquerer is trying the correct connection creation when contacting a website (getting the ip adress from the router and sending SYN-packets, receiving ACK packets and so on).
Firefox and every other program i tried so far (Lynx, gaim ... uhm ... that's it but still), tried to create a connection to 1.0.0.0
That strikes me a bit odd.
It seems, as if all other programs send DNS request, that get 1.0.0.0 as an answer from my router

If i try nslookup from a console, i get the correct answer though.
Hm ... that looks as if these programs need some other DNS configuration? Or they send wrong packets to my router?
Sometimes Ethereal says something about malformed packets, but that is indeterministic in relation to the connections that work and those that do not.

Anyone an idea, where to look for THAT specific problem?

Thank you in advance, your help really is appreciated
Christian

**Harry Kuhman** · 07-09-2006, 10:22 AM

What an interesting problem. I don't yet have any answers, but I'm intrigued. And your knowing enough to break out ethereal makes me believe that it's not just a user error. Could you please tell up a couple more things? 1) What make and model of a router is this (even firmware revision may help pin this down). I would also look to see if I could find any similar reports of things like this with this router, and see if there are any firmware revisions available. 2) Please post the output of ifconfig. Please dont obscure any IP addresses or related data, any IP addresses shown should be private NAT addresses and there is no reason to obscure them. I may not get back to you for a little while, but I will be thinking about this one.

**Christian Kullmann** · 07-09-2006, 02:55 PM

Hi there,
thank you for the help.
(odd enough i posted an hour ago, but somehow this is not visible to me anymore ... whatever)

1) The router is an ADSL-router modem D-LINK DSL-G664T. I just installed the most current firmware version, number: "V3.00B01T02.EU.20060213".
After getting it up and running, the behavior however, remains the same

Here is what ethereal said:
Src Dst Protocol Info
192.168.1.2 192.168.1.1 DNS Standard Query AAAA web.de
192.168.1.1 192.168.1.2 DNS Standard Query Response
192.168.1.2 192.168.1.1 DNS Standard Query AAAA web.de
192.168.1.1 192.168.1.2 DNS Standard Query Response[Malformed Packet]
192.168.1.2 192.168.1.1 DNS Standard Query A web.de
192.168.1.1 192.168.1.2 DNS Standard Query Response A 1.0.0.0
192.168.1.2 1.0.0.0 TCP 54214 > www [SYN] .... etc pp

If Konqueror makes the request, it looks like this:
192.168.1.2 192.168.1.1 DNS Standard Query A web.de
192.168.1.1 192.168.1.2 DNS Standard Query Response A 217.72.195.42
192.168.1.2 192.168.1.1 DNS Standard Query AAAA web.de
192.168.1.1 192.168.1.2 DNS Standard Query Response[Malformed Packet]
192.168.1.2 217.72.195.42 TCP 45640 > www [SYN] .... etc pp
217.72.195.42 192.168.1.2 TCP www > 45640 [SYN, ACK] ... etc pp
which obviously is the way to go ...
*shrugs*

2) Here is the ifconfig -a output:
th0 Protokoll:Ethernet Hardware Adresse 00:11

8:5E:AA:C5
inet Adresse:192.168.1.2 Bcast:192.168.1.255 Maske:255.255.255.0
inet6 Adresse: fe80::211:d8ff:fe5e:aac5/64 Gültigkeitsbereich:Verbindung
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2302 errors:0 dropped:0 overruns:0 frame:0
TX packets:2527 errors:0 dropped:0 overruns:0 carrier:0
Kollisionen:0 Sendewarteschlangenlänge:1000
RX bytes:1282796 (1.2 MiB) TX bytes:481236 (469.9 KiB)
Interrupt:17 Basisadresse:0x2000

eth1 Protokoll:UNSPEC Hardware Adresse 00-11-D8-00-00-04-CB-92-00-00-00-00-00-00-00-00
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:4 dropped:4 overruns:0 carrier:0
Kollisionen:0 Sendewarteschlangenlänge:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)

eth2 Protokoll:Ethernet Hardware Adresse 00:11

8:5E:9A:8B
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
Kollisionen:0 Sendewarteschlangenlänge:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Interrupt:19 Speicher:ec000000-0

lo Protokoll:Lokale Schleife
inet Adresse:127.0.0.1 Maske:255.0.0.0
inet6 Adresse: ::1/128 Gültigkeitsbereich:Maschine
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:14 errors:0 dropped:0 overruns:0 frame:0
TX packets:14 errors:0 dropped:0 overruns:0 carrier:0
Kollisionen:0 Sendewarteschlangenlänge:0
RX bytes:700 (700.0 b) TX bytes:700 (700.0 b)

sit0 Protokoll:IPv6-nach-IPv4
NOARP MTU:1480 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
Kollisionen:0 Sendewarteschlangenlänge:0
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)

So ... i hope, although there are some german terms in between, that it is comprehendable (well, the format is always the same, isn't it?)

I am currently quite lost, and i really appreciate any help or hint anyone could give on that matter.
I must admit, that i am not THAT familiar with Linux, although i have been working on Linux machines for some years now ...
If there is any more information needed, please let me know.

Best regards and thanks in advance
Christian