User Manual

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CHAPTER!ONE:!PRODUCT!OVERVIEW!
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1.1!INTRODUCTION!!
The WiMAX Outdoor CPE with router/Bridge functionality provides WiMAX connectivity to wired
LAN networks. The CPE functions as a WiMAX gateway providing wired and wireless broadband
Internet access services through connection with a WiMAX base station. The CPE is easily installed,
utilizing Plug and Play functionality. In addition to web-based configuration, users can update
firmware, simplifying installation and operation of the device. The CPE operates in Router mode and
Bridge mode, both providing Internet access:
1.1.1!ROUTER!MODE!
In Router mode, the internal IP address is acquired through dynamic host configuration protocol
(DHCP), static IP address, or PPPoE connection to the WiMAX base station. With enabled DHCP
service, connected PCs and notebooks can acquire addresses from the CPE.
A CPE deployed for operation in the router mode is basically used to provide a gateway to hosts on a
local area network where the CPE hides all the traffic originating from the LAN behind its IP address
which is assigned from the public domain, which makes the traffic appear as if it’s originating from
the CPE itself. A router CPE implements Network Address Port Translation protocol (NAPT).
1.1.2!BRIDGE!MODE!
This mode requires minimal presetting, with the internal IP address configured in the same or
different network segment as the WiMAX base station. Bridging is a forwarding technique used in
packet-switched computer networks.
A CPE deployed for operation in the bridge mode is basically used to provide Ethernet service to
enterprise customer locations. An enterprise location has a CPE with an Ethernet interface that could
support one or many user hosts in the local network through a switch. CPE supports both IP and
Ethernet CS. If Ethernet CS is supported by the network then Layer 2 connectivity can be established
between SS and CSN. In this case, the network service to the enterprise customer is an Ethernet
service from the core network all the way to the enterprise MS.