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DMS-CTC-20131021-0004 v1.0
6.2 Firewall
Introduction
The Gateway comes with an integrated firewall that helps you protect your network from attacks from the Internet. This firewall
has a number of predefined levels to allow you to adjust the firewall to your needs.
The default Firewall setting is Minimum Security (Low). This means that all traffic passing through the Gateway (from and to
the Internet) is allowed.
Predefined security levels
The Gateway has a number of predefined security levels. The following levels are available:
Maximum Security (High):
Blocks all the applications including IP-driven voice applications (such as Gtalk, Skype) and P2P applications. Allows Internet
browsing, email, VPN, DNS and iTunes services.
Typical Security (Medium):
Blocks P2P applications and Ping to the Gateway, allows all other traffic.
Minimum Security (Low):
Allows all secure applications. This is the default configuration.
Custom Security:
Allows you to create your own security level.
Changing the security level
Proceed as follows:
1 Browse to the Admin Tool (http://10.0.0.1), using a computer or device that is currently connected to you Gateway (either
wired or wirelessly).
For more information, see “Accessing the Admin Tool” on page 29.
2 On the Gateway menu, click Firewall.
3 The Firewall page appears.
Under Firewall Security Level, select one of the predefined levels or select Custom Security to create a custom level.
4 Click SAVE SETTINGS.
Although BlockAll will block all connections, some mandatory types of traffic such as DNS will still be relayed
between LAN and WAN by the Gateway.
The firewall levels only have impact on traffic passing through your Gateway. This means that the handling of traffic
directly appointed from and to the Gateway is independent of the selected firewall level.