You have configured a remote site Gateway that supports your boss’s access from his home office using a DSL dialup connection. Everything worked fine yesterday, but today all connectivity is lost. Your initial investigation results in "nobody has touched anything", which you can support by taking a look in SmartView Tracker Management. What is the problem and what can be done about it?

A.
You cannot use NAT and a dialup connection.

B.
The NAT configuration is not correct; you can only use private IP addresses in a static NAT setup.

C.
A static NAT setup may not work with DSL, since the external IP may change. Hide NAT behind the Gateway is the preferred method here.

D.
According to published limitations of Security Gateway R71, there’s a bug with NAT. A restart of the Gateway will help here.