Siemens Gigaset CE450 IP R User Manual page 79

CE 450 IP R / IM-Ost english / A31008-M1817-R601_1-7619 / web_server.fm / 02.03.2007
Port Mapping
Port mapping is essentially an automatic form of port forwarding. It involves ports being
released on the router for a PC in the local network, and the PC "manages" these ports itself.
The router allows messages received by these ports through in both directions.
¤
Open the following Web page:
¢
Port
Precondition: NAT is activated.
¤
In the
¤
Enter a port, a port area (e.g. 2345 - 2678) and/or a series of ports (6006, 8005) in
Mappings.
Example of an entry in
¤
Click Add.
¤
Repeat the previous step if necessary.
¤
Click Set
Please note:
– Deactivate the
– Click Delete
Exposed Host
If NAT is activated, you can set up a PC in your local network as an exposed host. Your router
will then forward all incoming data traffic from the Internet to this client. You can then, for
example, operate your own Web server on one of the PCs in your local network and make
it accessible to Internet users.
Please note: Exposed host means that your local PC is directly visible on the Internet, and
is therefore exposed to particular dangers (e.g. from hacker attacks). You should only acti-
vate this function if absolutely necessary (e.g. to operate a Web server) and if other func-
tions (e.g. port forwarding) are not adequate. In this case you should take appropriate
measures on the clients concerned.
¤
Open the following Web page:
¢
Exposed
¤
Highlight
¤
If you activate the function, enter the local IP address for the PC that you want to release
as exposed host in the
¤
Click Set
76
Mapping.
fields, enter the local IP address for the PC in the local network.
Server IP
Mappings: 2345 - 2678, 6006, 8005
Port
to apply the settings.
Enabled field to temporarily deactivate the settings for a PC.
to remove a PC from the list.
Host.
or in the
On Off Exposed Host
Local IP Address
to apply the settings.
¢
Router Settings Internet
¢
Router Settings Internet
field.
field.
Setting up NAT
¢
Address Translation (NAT)
¢
Address Translation (NAT)
Port