Wireless card seen,got IP, but no Internet

Utapez · 01-18-2007, 06:58 PM

I had a working wireless connect with my Ubuntu PPC Dapper install, running on my iBook G4 but last night I installed MOL and after reboot MOL worked but I lost my wireless connect. I have spent all day troubling shooting but no connect. iwlist scan, sees the card, ifconfig sees the card, iwconfig sees the card, I have a IP but no connect to the Internet. How do I continue to trouble shoot this? I can send a ping to the router but can't receive? mmm?

linuxles · 01-18-2007, 10:43 PM

By MOL I assume you are meaning Mac-On-Linux, be careful when using acronyms, it's not always clear what you may be referencing.

IE: http://acronymfinder.com/af-query.as...d&string=exact

The first thing I would try would be a traceroute to the routers' IP address to see if you can get that far. Since you have an IP I suspect that at least that is working. If so, then try a traceroute to some external IP address to see where it is failing.

In a shell, type: traceroute yahoo.com

You could also install Kismet to see if the wireless card is seeing the router. Alternatively KDE has a tool called KWifiManger that will scan for wireless networks. Since you are running Ubuntu you probably don't have KDE, but Gnome may have a similar tool that you could use to scan for wireless networks.

/Les

softseacom · 01-19-2007, 04:26 AM

very informative post for me too, Thanks.

Utapez · 01-19-2007, 09:10 AM

Mac on Linux
the only way I could get my Internet connect back was to uninstall MOL and the two additional files I had installed (ipmasq and dnsmasq). I'll wait till I upgrade to Edgy to try this again.Phew!
I have mol running perfectly on my G4 desktop (Mac OS 10.39) that is a dual boot with Edgy 6.10. This computer connects via an ethernet cable and was a snap to setup!
I think the issue with my wireless card had to do with "ipmasq and dnsmasq" that was install to get mol to connect to the internet. Maybe it doesn't work with wireless? Anybody know?
Thanks for your input!

linuxles · 01-19-2007, 12:31 PM

Quote:

Originally Posted by Utapez

I think the issue with my wireless card had to do with "ipmasq and dnsmasq" that was install to get mol to connect to the internet. Maybe it doesn't work with wireless? Anybody know?

The better question is what network device were ipmasq and dnsmasq trying to masq. If they were trying to masq eth0 then that explains it. Your wireless card was probably using something like wlan0 instead of eth0.

Only one way to find out; reinstall it, and check the config files...

/Les

Utapez · 01-19-2007, 05:13 PM

You're right I should know what was being masq. Which config files are you referring to? My wireless card is eth1.

I reinstalled mol again but this time I did not install "ipmasq and dnsmasq", I added in my dhcp.config file, INTERFACES= " eth1 tun0" and in my /etc/mol/molrc.net file I added "netdev: tun0 -tun" and removed from my /etc/mol/tunconfig file "/etc/init.d/ipmasq restart" and "/etc/init.d/dnsmasq restart"
I rebooted my linux system just to make sure I would retain my wireless connect (it did) and then I started mol, it worked, mol found it's internet connect. Mac on Linux in Dapper works with a wireless connect.

linuxles · 01-22-2007, 03:23 AM

I haven't used "dnsmasq" and "ipmasq" before. I was just guessing from the sound of it that they may have been set to masq the wrong card by default. The default being eth0, and you were using eth1. So whatever config files they use is what I was referring to.

Either way you got it working, so the point is moot. Unless of course you want to masq your IP. Then you'll need to check the config files for those two services and make the appropriate changes and restart.

/Les