[Gllug] [OT] Non Nat dsl router advice?

[Chris Bell]

On Tue 19 Oct, Nix wrote:
> 
> On Mon, 18 Oct 2004, Chris Bell mused:
> >    I heard some time ago that an ADSL modem used with a standard BT line
> > should have an IP address, but that it did not need to be a routable
> > address, so the visible IP address can be allocated to the (firewall?) box
> > behind it.
> 
> Odd. My ADSL router's IP address is internally-visible only, and that
> only for the sake of remote administration of the router: if I never
> wanted to do that, I could remove the IP address entirely. I can't see
> how BT would know, or why they'd care.
> 
> (The router's operating as a PPP half-bridge, converting PPPoA to
> Ethernet frames and back and doing nothing else.)
> 
   You may well be correct in that it only needs to be seen from the local
side, and it would also help to protect the ADSL modem from its own known
vulnerabilities. I have not yet followed it up, although I hope to soon.


-- 
Chris Bell

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