User's Guide
3e-531AP Wireless Access Point
Chapter 1: Introduction
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3.
And lastly, multiple APs connected to a wired network and operat-
ing off that network’s DHCP server can provide a wider coverage
area for wireless devices, enabling the devices to “
roam” freely
about the entire site.
Gateway Con gurations
In gateway mode, wireless users are provided additional
rewall
protection from the rest of the industrial or shipboard network or Internet
using
Network Address Translation (
NAT) protocol features and rewall
options.
Wireless users can still communicate with the wired network resourc-
es but communication must be initiated by the wireless devices. Using the
NAT protocol, the only IP address visible to the wired network is that of
the gateway itself, as assigned by the wired Ethernet DHCP server. The
gateway provides rewall protection to its wireless users. It can dynami-
cally assign private addresses to member devices using its own internal
DHCP server. It acts as a
router, not a
bridge, and controls traf c ow and
access control between the wired and wireless networks.