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Configuration:
Basic Advanced TCP/IP Wireless
VT2400/VT2500 Series Voice Gateway User Guide
23
Setting Up Minimum Security Network Options
For basic operation of your network, these tasks must be completed:
•
Selecting the firewall policy and enabling the firewall
•
Disabling the wireless option (if you are setting up a wired network only); or
•
Enabling wireless security (if setting up a LAN with one or more wireless devices
Setting the Firewall Policy and Enabling the Firewall
The
VT2400/VT2500
firewall protects your LAN from attacks and other intrusions from the Internet. This section
describes using the Policy > POLICY — config page to choose one of the
predefined firewall policies
provided
with the
voice gateway
.
The predefined policies provide outbound Internet access for computers on the
VT2400/VT2500
LAN. The
voice
gateway
firewall uses
stateful inspection
to allow inbound responses when there already is an outbound session
running corresponding to the data flow. For example, if you use a Web browser, outbound HTTP connections are
permitted on port 80. Inbound responses from the Internet are allowed because an outbound session is
established.
To set up a custom firewall, see
Firewall > FIREWALL — basic
in
Advanced Configuration
.
Caution!
Firewalls are not foolproof. Choose the most secure firewall policy possible. To enable easy network
setup, the default firewall policy is None, which provides no security.
