Access Control - Verizon MI424-WR User Manual

6
Configuring Security Settings

6.3 Access Control

To configure the FiOS Router's firewall security settings:
1.
From the General screen, select a security level by clicking the appropriate
radio button. Using the Minimum Security setting may expose the local
network to significant security risks, and thus should only be used for short
periods of time.
2. Check the "Block IP Fragments" box to protect the local network from
a common type of hacker attack that uses fragmented data packets to
sabotage the network. Note that VPN over IPSec and some UDP-based
services make legitimate use of IP fragments. IP fragments must be allowed
to pass into the local network to use these services.
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.
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