Netopia 6.3 - Manual (Page 69)

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Section 4 Configure
Use a Cayman Firewall
BreakWater Basic Firewall
BreakWater delivers an easily selectable set of pre-configured firewall pro-
tection levels. For simple implementation these settings (comprised of
three levels) are readily available through Cayman’s embedded web
server interface.
BreakWater Basic Firewall’s three settings are:
ClearSailing
ClearSailing, BreakWater's default setting, supports both inbound and out-
bound traffic. It is the only basic firewall setting that fully interoperates
with all other Cayman software features.
SilentRunning
Using this level of firewall protection allows transmission of outbound traf-
fic on pre-configured TCP/UDP ports. It disables any attempt for inbound
traffic to identify the Gateway. This is the Internet equivalent of having an
unlisted number.
LANdLocked
The third option available turns off all inbound and outbound traffic, isolat-
ing the LAN and disabling all WAN traffic.
Configuring for a BreakWater Setting
Use these steps to establish a firewall setting:
Step 1 Ensue that you have enabled the BreakWater basic firewall with the
appropriate feature key.
See “Use Cayman Software Feature Keys” on page 93 for reference.
Step 2 Click the Security toolbar button.
Step 3 Click Firewall .
Link Firewall
BreakWater Basic Firewall operates independent of the NAT
functionality on the Gateway.