can an ISP prevent use of your own router

Hi
Is there any way an ISP can detect and prevent you from using your own adsl router?

I know O2 use mac address filtering but that can be spoofed which is what am doing right now. The reason I ask is I work for a company whos looking into expanding into IP camera's. That would require access to the firewall settings on the router. If it's manged by the isp then that may not be possible hence I would need to fit a new router

By prevent I mean literally can't connect to the internet

Sky do this

They probably can detect, but I doubt they would prevent. What about users who wanted stronger wireless, QoS, firewall rules etc? It would be counterproductive to prevent them.

They could insist you only use their supplied router while you are seeking support from them.

PS: I've used other routers on O2.

Edited by XRaySpeX (Sun 31-Oct-10 18:32:55)

If a firm is developing IP cameras, it would be sensible to develop something that requires minimal or no fiddling with the router. Most IP cameras require just a single port open in the incoming NAT and as far as I am aware this is possible with the O2 routers.

The key thing here is that when people talk about a firewall on a router, they invariably are just referring to the NAT side of the router

Nope, loads of Sky users use non-sky routers - I did before I came over to Be, you just have to know how to get the log in details out of the supplied router.

In reply to a post by The_Voyager:

Nope, loads of Sky users use non-sky routers - I did before I came over to Be, you just have to know how to get the log in details out of the supplied router.

You can't out of the new ones

There's no such word as can't - someone will find a way

In reply to a post by The_Voyager:

There's no such word as can't - someone will find a way

Perhaps you're right and I'm wrong http://www.skyuser.co.uk/forum/extracting-sky-router...