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Old 12-31-2005, 01:02 PM   #1
AltUlster
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Registered: Apr 2005
Location: Buckle, BibleBelt, USA
Distribution: Debian Sarge
Posts: 9

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No internet connection with Live CDs


I just got this new computer and downloaded several live cds to test out some new distros and check out the hardware detection. I had been using Debian Sarge on older hardware without any issues, but since I had no issues, I know nothing about troubleshooting Ethernet ports, dhcp, or IPv6 issues. Iím not sure if this is a hardware or software issue, but from what Iíve read in searching Iím beginning to think it has something to do with IPv6 support. Iíve tried several live CDs (Knoppix, Ubuntu, Elive, etc) and all fail to connect me to the internet. Below is the output of several things Iíve tried (this is from Ubuntu Live):

Code:
 # mii-tool eth0
eth0: negotiated 100baseTx-FD, link ok

$ ifconfig eth0
eth0	Link encap:Ethernet HWaddr 00:11:2F:8B:14:4D
	inet6 addr: fe80::211:2fff:fe8b:144d/64  Scope:Link
	UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
	RX packets:26 errors:0 dropped:0 overruns:0 frame:0
	TX packets:7 errors:0 dropped:0 overruns:0 carrier:0
	Collisions:0 txqueulen:1000
        RX bytes: 3534 (3.4 KiB)	TX bytes:1334 (1.3 KiB)
	Interupt:19 Base address:0xc800

$ lspci  | grep Eth
0000:00:04.0 Ethernet controller: Silicon Intergrated Systems [SIS] SiS900 PCI Fast Ethernet (rev 90)

$ lsmod | grep mii
mii		5248 1 sis900

$ route Ėn
Kernel IP routing table
Destination 	Gateway	   Genmask	Flags Metric Ref 	Use Iface

# dhclient eth0
Internet Systems Consortium DHCP Client V3.0.2
Copyright 2004 Internet Systems Consortium.
All rights reserved.

sit0: unkown hardware address type 776
sit0: unkown hardware address type 776
Listening on LPF/eth0 00:11:2f:8b:14:4d
Sending on LPF/eth0 00:11:2f:8b:14:4d
Sending on Socket/fallback
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 4
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 10
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 10
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 12
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 13
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 12
No DHCPOFFERS received.
No working leases in persistent database Ė sleeping.

# dhcpcd eth0
dhcpcd: command not found

#ifup eth0
Ignoring unknown interface eth0=eth0
I really donít know what any of those are telling me or doing, I just happened to find them as suggestions while searching for an answer.

Lets see what else... Ubuntu seems to think I have two network cards, eth0 and eth1. When I look at my device manager/network adapters in XP the SiS900 is listed as well as something called 1394 Net Adapter. Not sure if this matters.

Iíd really like to get a live distro at least connected to the internet prior to hd installation, if something were to go wrong with the install and I lose my xp partition Iíll have to look for help using my wifeís mac and she hates me to touch her computer. Any help would be much appreciated.
 
Old 12-31-2005, 03:55 PM   #2
bigjohn
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Registered: Jun 2002
Location: UK .
Distribution: *buntu (usually Kubuntu)
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Well I haven't got a clue what that lots telling you either, but you needn't worry about it doing anything to the XP partition. It's liveCD's you're on about. They don't put anything on your hard drive unless you specifically tell them to - and you can't do that by mistake.

Testing hardware detection? as I understand it, knoppix is the best of the live CD versions, but you might also try kanotix - it's based on knoppix but I understand that it's a little more "polished".

Also, what kind of connection/modem/router etc? That might help someone else point you in the right direction (you're not trying to use AOL are you???).

Just for info, my connection is a standard UK ADSL one, that terminates at a router/modem. Which in turn, is connected to a hub - that goes to the network card.

So for live CD versions, I normally just fire it up, then (with knoppix as an example), I look at the knoppix icon, and usually see something thats network related, theres usually an option to "configure my network card". If I click that, the dialogue asks for the computers IP address, the broadcast address (I just hit enter because it usually gives me the default setting for the IP address I put in for the computer), then it usually asks for the netmask I just make sure it's set as 255.255.255.0 and finally I just put in the gateway route IP for the router part of the modem/router device. It then gives me a little terminal window telling me that it's setting this, that and the other and closes automatically.

I can them access the net OK.

Oh and as far as I can work out, the 1394 network adapter is so that you can network via firewire!

regards

John
 
  


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