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6
Configuring Security Settings
6.3 Access Control
3.
Apply to save changes.
Click
6.3 Access Control
Access control is used to block specific computers within the local network (or
even the whole network) from accessing certain services on the Internet. For
example, one computer can be prohibited from surfing the Internet, another
computer from transferring files using FTP, and the whole network from
receiving incoming email.
Access control defines restrictions on the types of requests that can pass from
the local network out to the Internet, and thus may block traffic flowing in both
directions. In the email example given above, computers in the local network
can be prevented from receiving email by blocking their outgoing requests to
POP3 servers on the Internet.
Access control also incorporates a list of preset services in the form of
applications and common port settings.
6.3a Allow or Restrict Services
To view and allow/restrict these services:
1.
Access Control from the left side of any Security screen. The "Access
Select
Control" screen appears.
Note: The "Allowed" section is only visible when the firewall is set to "Maximum. "
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