Siemens Gigaset SX763 WLAN dsl Manual page 77

Note:
An application that is configured for port triggering can only be run by one user in
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the local network at a time.
As long as the public ports are open, they can be used by unauthorised persons to
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gain access to a PC in the local network.
When the Gigaset SX763 WLAN dsl is supplied, the
Translation) is activated, i.e. all IP addresses of PCs in the local network are converted to
the router's public IP address when accessing the Internet.
You can use the NAT settings to configure the Gigaset SX763 WLAN dsl to carry out the
following tasks:
Set up port triggering for special applications (page 78),
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Set up the Gigaset SX763 WLAN dsl as a virtual server by configuring Port Forward-
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ing (page 79),
Open the firewall for a selected PC (page 80).
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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
Gigaset SX763 WLAN dsl, you must select Never expires (page 85) 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.
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In the Advanced Settings menu, select: Internet – Address Translation (NAT)
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Select the required option.
Configuring Advanced Settings
NAT function (Network Address
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