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Old 06-24-2004, 06:12 PM   #1
Yap
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Registered: Jun 2004
Location: London, UK
Distribution: Mandrake 10.0 Community
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Unhappy Flummoxed...MDK10 and NTL Cable Modem networking nightmare


The situation:

1 PC with 2 NICs (eth1 on motherboard - VIA chipset, and eth0 in PCI slot - LiteOn/Netgear chipset)
Mandrake 10 Community installed

The vision:

MDK machine acts as router/server between NTL cable internet and the wider home network (2 other XP based PC's)

The (current) reality:

I cannot for love nor money get the MDK machine to connect to the internet. I have established new connections on both NIC (at seperate times) and although I get both down and occasionally upstream traffic, I cannot connect to anything at all. Nor can I ping anything outside the machine itself.

I have run ifconfig, I have looked closely at ifcfg-eth1 and -eth0 config files and cannot figure out what the problem is. Happy to talk through the detail if anyone wants to listen....

I need someone to help me get back to basics!

Please anyone?!
 
Old 06-24-2004, 06:44 PM   #2
avarus
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Registered: Apr 2004
Location: Oxford, UK
Distribution: Ubuntu, Debian, various
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Hi,

Have you set your default route correctly? DHCP should do this for you, but what is the output when you type /sbin/route?

Also, are you trying to ping hostnames or addresses - ie have you eliminated DNS issues?

TIM
 
Old 06-24-2004, 07:02 PM   #3
Yap
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Hi there,

The output from /sbin/route is blank ie. headings only no data in the table.

I'm guessing that this will turn out to be significant...

How do I go about remedying this?

Steven
 
Old 06-24-2004, 07:03 PM   #4
Yap
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Quote:
Originally posted by avarus
[Also, are you trying to ping hostnames or addresses - ie have you eliminated DNS issues?
I am trying to ping addresses ie. external to my network

The DNS servers for NTL are named in resolv.conf...

Steven
 
Old 06-24-2004, 07:22 PM   #5
Yap
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I have just tried to create a new connection on eth0.

Set it up to run as a Cable connection and on DHCP rather than static IP.

When I run ifconfig I get a listing for eth0 (without an inet address) and a listing for eth0:9 (with an inet address...albeit one that does not seem to tally with NTL's address range).

Still no internet connection tho...

As I understand it, eth0:9 is an alias - how did it get there, and what use does it have.

Damn...I'm confused...

Steven
 
Old 07-10-2004, 08:58 AM   #6
drmouse
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Registered: May 2004
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Distribution: Debian Ethch, Fedora, SuSE 9.1 & 10.2 at work
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you need to register ur enet card with the cable modem, eth0:9 is like the windows autoconfiguration ip addy, it means it cant get an addy from the DHCP server, which is your cable modem.
 
Old 07-10-2004, 11:27 AM   #7
Yap
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Drmouse,

Thanks for this - I'm embarrased to say that I gave up on this a couple of weeks back...

You are right tho...I think I needed to spoof the MAC address of the the network card that is registered with NTL. I had a brief go at it, but got so fed up with my lack of progress that I have gone back to using a hardware router again.

When I feel brave enough, I will have another go...

Cheers,

Steven
 
  


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