Chapter 4 - Operation and Administration
4.2.6.1.4.2 Access to DHCP
The Access to DHCP option enables defining the port through which the unit searches for and communicates with a DHCP server. Select from the following options:
From Wireless Link Only
From Ethernet Only
From Both Ethernet and Wireless Link
The default for Access Units is From Ethernet Only. The default for Subscriber Units is From Wireless Link Only.
4.2.6.1.5Show IP Parameters
The Show IP Parameters option displays the current values of the IP parameters, including the Run Time IP Address, Run Time Subnet Mask and Run Time
Default Gateway Address.
4.2.6.2Air Interface Parameters
The Air Interface Parameters menu enables viewing the current Air Interface parameters defined for the unit and configuring new values for each of the relevant parameters.
4.2.6.2.1Country Code and Sub-Bands
Each country has its own regulations regarding operation modes and parameters such as allowable frequencies and bandwidth, the need to employ an automatic mechanism for detection and avoidance of frequencies used by radar systems, maximum transmit power at each of the supported modulation levels and the ability to use burst transmissions. To efficiently manage these country dependent parameters, each unit has a ‘Country Code’ parameter and a set of accompanying parameters, which depend on this country code. Where more than one set of parameters can be used, the available sets are defined as
4.2.6.2.2ESSID Parameters
The ESSID (Extended Service Set ID) is a string used to identify a wireless network and to prevent the unintentional merging of two wireless networks or two sectors in the same network. Typically, a different ESSID is defined for each AU. To facilitate easy addition of SUs to an existing network without a prior knowledge of which specific AU will serve it, and to support the Best AU feature, a secondary "global" ESSID, namely "Operator ESSID", can be configured in the AU. If the Operator ESSID Option is enabled at the AU, the Beacon frames transmitted by it will include both the ESSID and Operator ESSID. The SU shall
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