Setting Up Nat - Siemens Gigaset CE450 IP R User Manual

CE 450 IP R / IM-Ost english / A31008-M1817-R601_1-7619 / web_server.fm / 02.03.2007
MAC Filter
When the firewall is activated, you can restrict access to the Internet for certain PCs and PC
applications based on their MAC address.
¤
Open the following Web page:
¤
In the fields for
have access to the Internet and click on Add.
¤
Repeat the previous step if there are further PCs that you do not want to allow access to
the Internet.
¤
Click
Set
Please note:
– Deactivate the
– Click Delete

Setting up NAT

NAT (Network Address Translation) allows several subscribers (PCs) in their local network
to access the Internet via a public IP address. NAT also protects the subscribers in their local
network against direct unauthorised access from the Internet.
They can, however, forward requests from the Internet specifically to PCs or applications in
their local network if they use special applications, or if they operate a server in their local
network (Port Forwarding / Exposed Host).
Activating/deactivating NAT:
¤
Open the following Web page:
¤
Highlight
¤
Click Set
If NAT is activated, the following functions are displayed in the navigation tree for the NAT
configuration, and these can be used to control communication between the local network
and the Internet:
u
Port Forwarding
u
Port Mapping
u
Exposed Host
u
UPnP (page 77)
74
Router Settings
MAC Address, enter the MAC address for the PC that you do not want to
to apply the settings.
field to give a specified PC temporary access.
Enabled
to remove a PC from the list.
Router Settings
or in the
On Off Address Translation (NAT)
to apply the settings.
(page 75),
(page 76),
(page 76) and
¢ ¢ ¢
Internet Firewall
¢ ¢
Internet Address Translation
field to activate or deactivate NAT.
Setting up NAT
MAC Filter.
(NAT).