75
Setting up NAT
CE 450 IP R / IM-Ost english / A31008-M1817-R601_1-7619 / web_server.fm / 02.03.2007
Ve
rs
ion 2,
21
.12.
2006
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:
Router Settings
¢
Internet
¢
Firewall
¢
MAC Filter
.
¤
In the fields for
MAC Address
, enter the MAC address for the PC that you do not want to
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
to apply the settings.
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:
Router Settings
¢
Internet
¢
Address Translation (NAT)
.
¤
Highlight
On
or
Off
in the
Address Translation (NAT)
field to activate or deactivate NAT.
¤
Click
Set
to apply the settings.
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
u
Exposed Host
(page 77) and
u
UPnP
Please note:
– Deactivate the
Enabled
field to give a specified PC
temporary
access.
– Click
Delete
to remove a PC from the list.