Port Forwarding - Gigaset 504 AGU Instruction Manual

Configuring Advanced Settings
You can use the NAT settings to configure the router to carry out the following tasks:
u
Set up the router as a virtual server by configuring Port Forwarding (page 32),
u
Open the firewall for a selected PC (page 34).
Note:
For the functions described below, the IP addresses of the PCs must remain
unchanged. If the IP addresses of the PCs are assigned via the DHCP server of the
router, you must select Never expires (page 38) as the setting in the Local Network
menu entry for the Lease time or assign static IP addresses for the PCs.
By default the NAT function is activated. You should only deactivate the NAT function if
you want to configure you own firewall in you local network.
ì
In the Advanced Settings menu, select: Internet – Address Translation (NAT)
ì
Select the required option.

Port Forwarding

If you configure Port Forwarding, the router Gigaset 504 AGU outwardly assumes the
role of the server. It receives requests from remote users under its public IP address and
automatically redirects them to local PCs. The private IP addresses of the servers on the
local network remain protected.
Internet services are addressed via defined port numbers. The router needs a mapping
table of the port numbers to redirect the service requests to the servers that actually
provide the service.
Port Forwarding has been configured for this purpose.
32