NTL 120 CM and Belkin F5D7231uk4 wireless modem

robstocker · 09-11-2004, 10:32

Hi,

I'm a newbie to wireless networking and i've got troubles all ready

Basically, we have a 750k line and a NTL Home 120 CM. The line works fine, becuase if you plug an ethernet straight into the back of the modem, you get tin-ternet.

So we bought a new Belkin High-Speed Mode Wireless G Router. Its the new silver one, model number F5D7231uk4. Basically, Ethernet (laptop to router) works fine, but router to broadband is having a paddy. I've set the IP address to dynamic, and tried using the router MAC address and cloning the CM MAC address, but neither get a connection to the router.

Does anyone know the exact settings for NTL, or should it just be plug and play? I've tried a reboot on the router and CM, with no joy. Does anyone have any compatability issues with NTL and this router? Becuase it's quite new, i can't seem to find many articles on it?

Any help would be greatly appreciated.

Rob

09-11-2004, 10:56

Could be the ethernet cable between the CM and router (straight-through vs cross-over), or are you cloning the CM MAC address? You should be cloning the PC MAC address.

09-11-2004, 11:03

Looking at Robin Walker's site, the CM you have should work with either type of cable, so that shouldn't be the issue (assuming you have it plugged into the WAN port on the router).

robstocker · 09-11-2004, 11:03

Should it be crossover? I used the one in the bag which i presume is straight? At the moment anyway, it's straight cable between the modem-router and router-laptop.

I cloned the MAC address of the CM on to the router, as i believed (and please tell me if i'm wrong) that NTL require the MAC address of the CM to be shown, not the router. Therefore, do I clone the MAC address of the first laptop to the Router? What happens in that case when the second PC comes along to use the router?

Sorry if i sound a bit dumb, just my first time at using this gizmo.

Rob

09-11-2004, 11:08

This may be a red herring, as it may only apply to STBs, but it used to be the case that the NTL network would only recognise the MAC address of the PC you used when you registered. Thus, when installing a router, you had to clone that MAC address, so that the system still thought the router was the same PC you registered from. What is on the other side of the router is then irrelevant.

robstocker · 09-11-2004, 11:11

Yeah, that's what I thought, so i cloned it and used Dynamic IP on the router so it took the Ip the CM gave it. Don't work though

Rob

09-11-2004, 11:22

Quote:

Originally Posted by robstocker

Yeah, that's what I thought, so i cloned it and used Dynamic IP on the router so it took the Ip the CM gave it. Don't work though

Rob

you shouldn't need to clone the MAC when using a SACM.

Reset the router to factory default & configure it to obtain IP automatically & DHCP server enabled.

Turn everything off, then restart the cable modem & let it settle (synch & rdy lights steady), then start the router & let it settle, then start the PC - you should get an IP.

As it's wireless, you should also set up the security as per Nemesis' article

http://www.cableforum.co.uk/board/article.php?a=12

robstocker · 09-11-2004, 11:29

Ok, i'll try that and check it out. Be it simple, it may well just work! :o

Will let you know how I go on tonight.

robstocker · 09-11-2004, 23:17

Shock, horror, it works

Thanks for your help guys, I'm wireless

Tezcatlipoca · 09-11-2004, 23:51

Quote:

Originally Posted by robstocker

I cloned the MAC address of the CM on to the router, as i believed (and please tell me if i'm wrong) that NTL require the MAC address of the CM to be shown, not the router. Therefore, do I clone the MAC address of the first laptop to the Router? What happens in that case when the second PC comes along to use the router?

Glad you've got it working now thanks to homealone & others

But, just to answer that bit above -

If you ever need to clone a MAC address (& you don't have to, as you can just reboot the SACM if you change devices), it must be the MAC address of the previously connected PC (well, it's network card), & not the MAC of the modem itself.

If the router's WAN port had the MAC of the modem, while, obviously, the modem had the same MAC (as it's its own MAC), problems would ensue...