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SECURITY BASICS
Review the basics
Just connecting your computer to GlobeSurfer®II provides a basic level of protection because it
supports Network Address Translation (NAT).
Network Address Translation
Your GlobeSurfer®II supports NAT. This network service makes it possible for all of the computers in
your network to share a single IP address. This IP address is assigned to your GlobeSurfer®II and is
the only address that is visible to the outside world. The private addresses that DHCP assigns to
computers in your network remain private and cannot be reached from the Internet.
Determine the wireless exposure
If you live in a rural area far away from your neighbour, the likelihood that someone will break
into your wireless network is very low. On the other hand, if you live in a densely populated area
in the city next to an office building, there is a potential danger that a third party may try
to access your WLAN.
Based on your own security needs, decide which security settings you want to implement:
•
Change SSID
•
Disable SSID broadcast
•
Enable WEP, WPA, or WPA2 encryption
These settings are available from the ‘Quick Setup’ page of your GlobeSurfer®II. Each computer to be
connected to your WLAN must use the same settings.
Furthermore, you can enable MAC filtering on GlobeSurfer®II. MAC filtering can be used to grant or
deny WLAN computers in your network access to GlobeSurfer®II based on the MAC address of the
computer. For further information see ‘MAC Filtering’, on page 34.
Firewall
Your GlobeSurfer®II has a true firewall that uses rules to control the incoming and outgoing data
traffic. The firewall has three pre-defined levels of security. The default, ‘typical security’, blocks traffic
initiated by an external (Internet) source, and allows traffic initiated from the local network.
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