As per my other recent posts I've now set-up the DrayTek V120 modem in passthrough mode behind a Netgear WNDR4500 router and all works fine.

I've then tried to set-up  a static route so that I can "see" the modem behind the router using the following settings:

Destination IP:
Gateway IP:
Subnet mask:
Metric:             2

..... which the router accepts and reports the static route as active.

The problem is though, that I can't access the V120 web config page from a browser with the address

Can anyone please advise where I'm going wrong here. Is it in the settings or the browser address I'm using, or both?