User's Manual

Connectivity
230 Check Point Safe@Office User Guide
I changed the network settings to incorrect values and am unable to
correct my error. What should I do?
Reset the network to its default settings using the button on the back of the
Safe@Office appliance unit. See Resetting the Safe@Office Appliance to
Defaults on page 222.
I am using the Safe@Office appliance behind another NAT device, and I
am having problems with some applications. What should I do?
By default, the Safe@Office appliance performs Network Address
Translation (NAT). It is possible to use the Safe@Office appliance behind
another device that performs NAT, such as a DSL router or Wireless router,
but the device will block all incoming connections from reaching your
Safe@Office appliance.
To fix this problem, do ONE of the following. (The solutions are listed in
order of preference.)
• Consider whether you really need the router. The Safe@Office
appliance can be used as a replacement for your router, unless you
need it for some additional functionality that it provides, such as
Wireless access.
• If possible, disable NAT in the router. Refer to the router’s
documentation for instructions on how to do this.
• If the router has a “DMZ Computer” or “Exposed Host” option, set
it to the Safe@Office appliance’s external IP address.
• Open the following ports in the NAT device:
 UDP 9281/9282
 UDP 500
 TCP 256
 TCP 264
 ESP IP protocol 50
 TCP 981