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Routing, network cards, OSI, etc. Anything is fair game.

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Old 05-31-2007, 02:07 AM   #1
filippos
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Veeery strange problem installing network connection!?


I've installed SuSE 10.2 GM x86_64
My network card found and working fine? (both with fixed ip and dhcp)
a) connection to router and other computers established just fine
b) ping is returning from any of them
c) ifconfig returns number of bytes received and transmitted every time
d) route is returning my router's address
e) dig is returning ip addresses from domain names
f) browser http connection to localhost is ok
BUT it is not connected to internet!
both browsers (Firefox and Konqueror) are returning NOTHING! Not a bit of http requests! No other sites, even ips connected to my LAN.(http://10.0.0.2)
so
I disabled firewall, but nothing happened. I also disabled router firewall, but no luck.
I'm stack with it, please help!!!
same problem is http://www.linuxforums.org/forum/sus...-internet.html
http://www.linuxquestions.org/questi...light=internet
 
Old 05-31-2007, 03:03 AM   #2
ZAMO
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hello,
what about your gateway and nameservers?
will you check them? check /etc/resolv.conf.

All the best
 
Old 05-31-2007, 03:33 AM   #3
filippos
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Quote:
Originally Posted by ZAMO
hello,
what about your gateway and nameservers?
will you check them? check /etc/resolv.conf.
All the best
Thanks Zamo,
Nameservers and gateway are ok with fixed ip, even if I switch to DHCP they are automatically changed.
I've deleted the card and do it all from scratch.
dig returns ok, so nameservers and gateway should be correct.

Regards,
Filippos

Last edited by filippos; 05-31-2007 at 03:36 AM.
 
Old 05-31-2007, 04:36 AM   #4
ZAMO
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Are you able to ping a common site like google.com.
If so, then the bowser settings need to be corrected.what is the browser you are using?
Further will you run a "traceroute google.com" and post the redult here.
 
Old 05-31-2007, 06:27 AM   #5
filippos
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see next one

Last edited by filippos; 05-31-2007 at 06:34 AM.
 
Old 05-31-2007, 06:28 AM   #6
filippos
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Zamo,
Here is :
Code:
# traceroute www.google.com
traceroute to www.google.com (64.233.183.104), 30 hops max, 40 byte packets
 1  7206adsl2.acn.gr (213.5.0.15)  106.077 ms   105.368 ms   116.678 ms
 2  7206adsl2.acn.gr (213.5.0.15)  605.399 ms   601.420 ms   598.508 ms
 3  213.5.0.158 (213.5.0.158)  1098.888 ms   1095.411 ms   1091.984 ms
 4  213.5.0.230 (213.5.0.230)  1591.952 ms   1588.440 ms   1585.069 ms
 5  pos1-0-cr03-altec.ath.oteglobe.net (62.75.3.161)  2080.297 ms   2076.853 ms   2073.436 ms
 6  * * *
 7  * * *
 8  * * *
 9  * * *
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30  * * *
Pinging to google returned only its address www.l.google.com and (62.233.183.103). No pong.
Firefox or Konqueror have the same results.
Regards,
Filippos
 
Old 05-31-2007, 07:00 AM   #7
a.tsilfidis
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Hi,
from your traceroute results I think that there isn't a problem on your network connection configuration. Probably the problem is somewhere on the routers of your provider (if I'm not wrong the problem occurs when your signal gets out of Greece...).
 
Old 05-31-2007, 07:13 AM   #8
filippos
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A.Tsilfidis,
If this the problem, why can I post this from another computer on the same network?
Code:
PING www.l.google.com (64.233.183.103) 56(84) bytes of data.

--- www.l.google.com ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 2002ms
but while ping to my network returns pong, browsing my network is impossible.
 
Old 05-31-2007, 07:38 AM   #9
a.tsilfidis
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I think the fact that you have a static IP maybe explains this situation. By the way I was just trying to say that there's something wrong with their routing.
if I were you I would
a) try to give this static IP to another computer on the network and see what happens
b) compare the traceroute of a working pc on the same network with the one you've posted..
 
Old 05-31-2007, 08:25 AM   #10
filippos
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Quote:
Originally Posted by a.tsilfidis
a) try to give this static IP to another computer on the network and see what happens
b) compare the traceroute of a working pc on the same network with the one you've posted..
a) done but I have the same situation
b) of course it completes.
 
Old 05-31-2007, 09:39 AM   #11
filippos
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Changing my network card to an old one 100Mbps, everything worked ok.
Can I change speed to 100Mbps?
My problem is that my pc has no available ports
Code:
ethtool -s eth0 autoneg off speed 100 duplex full

Last edited by filippos; 05-31-2007 at 10:25 AM.
 
Old 05-31-2007, 11:06 AM   #12
farslayer
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if you force speed and duplex on the network card, you MUST have a managed switch so you can manually force the port on the switch to the same speed and duplex settings as the PC.

if you do not have a managed switch you will cause a duplex mismatch in your network settings because the switch won't receive the auto-negotiate signal from the NIC and will default to half-duplex at 100Mb.
 
Old 05-31-2007, 03:23 PM   #13
filippos
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Nothing happened changing eth to 100Mbps 10Mbps half or full duplex.
Is the problem that it cannot change to 1Gbps? (My network is 100Mbps NOT managed but is this strange?)
The card is an on board SiS chipset Shuttle 190 1Gbps from Holco Enterprises, so are the drivers.

Last edited by filippos; 05-31-2007 at 03:27 PM.
 
Old 06-09-2007, 11:41 PM   #14
filippos
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The problem is still on, 'cause I have a PC with only one PCI card available and I don't want to use it for networking.
I don't think that Linux is not capable to recognize a network card such as this and the problem is somewhere else.
Can I debug traceroute or ping?
 
Old 10-25-2007, 12:42 AM   #15
filippos
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After all these Shuttle send us drivers and all's well now - we have to recompile kernel but ...
 
  


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