User's Guide

49
SECURITY BASICS
Review the basics
Just connecting your computer to GlobeSurfer
®
III provides a basic level of protec-
tion because it supports Network Address Translation (NAT).
Network Address Translation
Your GlobeSurfer
®
III 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
®
III 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
®
III.
Each computer to be connected to your WLAN must use the same settings.
Furthermore, you can enable MAC filtering on GlobeSurfer
®
III. MAC filtering
can be used to grant or deny WLAN computers in your network access to
GlobeSurfer
®
III based on the MAC address of the computer. For further
information see ‘MAC Address Filtering’, on page 54.
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