7
The Security pages are used for configuring the firewall.
The Firewall page displays the state of the firewall. The default setting for the firewall is “On”.
This setting is recommended for connecting to the Internet for most typical home installations.
When the firewall is turned “On”:
• The Stateful Inspection firewall engine will be enabled.
• The PCX5000 will operate in “router” mode, which will enable the internal DHCP Server. Please
refer to “System Configuration/My Network” web page description to change the network
addresses.
• The PCX5000 will enable NAT (network address translation - see Glossary). The PCX5000
automatically obtains a single IP address from the CSP (Cable Service Provider) and shares this IP
address with all of the computers on the home network.
If the firewall is turned “Off”:
• The Stateful Inspection firewall engine will be disabled.
• The PCX5000 will operate in “bridge” mode, which will disable the internal DHCP Server and
NAT (network address translation).
It is not recommended to turn the firewall off unless you already have a firewall appliance or router
that is installed in between the PCX5000 and your computers.
Important Information!
Turning Off the firewall will leave your computer vulnerable to an attack.
Important Information!
When you turn on/off the firewall, you need to power off and on PCX5000 and
reboot your PC after PCX5000 starts.