Stopping router broadcasting IP address

[#1]

Can anyone help please? My Apple Time Capsule and router were storm damaged. Now with new router and time capsule, but in Airport utility, getting "Double NAT "warning.
How can I tell the plusnet router to stop broadcasting the IP address?
Thanks.

[#2]

Turning off DHCP should do that.
Have a look at this previous post http://community.plus.net/forum/index.php?topic=105753.0

[#3]

Sorted! Thank you Adam.

[#4]

Awesome, glad to hear that did the trick