Security
TIPS for making your BreakWater Basic Firewall Selection
Application | Select this Level | Other Considerations |
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Typical Internet usage | SilentRunning |
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(browsing, |
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ClearSailing | Set Pinholes; once defined, pinholes will be | |
gaming |
| active whenever ClearSailing is set. |
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| Restore SilentRunning when finished. |
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Going on vacation | LANdLocked | Protects your connection while your away. |
Finished online use for | LANdLocked | This protects you instead of disconnecting your |
the day |
| Gateway connection. |
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Chatting online or using | ClearSailing | Set Pinholes; once defined, pinholes will be |
instant messaging |
| active whenever ClearSailing is set. |
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| Restore SilentRunning when finished. |
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Basic Firewall Background
As a device on the Internet, a Netopia Gateway requires an IP address in order to send or receive traffic.
The IP traffic sent or received have an associated application port which is dependent on the nature of the connection request. In the IP protocol standard the following session types are common applications:
• | ICMP | • | HTTP | • | FTP |
• | SNMP | • | telnet | • | DHCP |
By receiving a response to a scan from a port or series of ports (which is the expected behavior according to the IP standard), hackers can identify an existing device and gain a potential opening for access to an
To protect LAN users and their network from these types of attacks, BreakWater offers three levels of increasing protection.
The following tables indicate the state of ports associated with session types, both on the WAN side and the LAN side of the Gateway.
