Cisco Aironet 1400 Series Manual page 22

therefore, only a summary is presented in the following paragraphs. The
process is described in detail in the Cisco Aironet 1400 Series Wireless
Bridge Mounting Instructions that shipped with your bridge.
When powered up the first time, the bridge searches for a DHCP server. If it
finds one, the bridge uses the assigned address. If a DHCP server is not found,
the bridge becomes a DHCP server and assigns itself an IP address of 10.0.0.1
with a subnet mask of 255.255.255.224. When the bridge destined to be part
of the link is powered up, it goes through the same process. Because the first
bridge is a DHCP server, it assigns the second bridge an IP address when
radio communications are established. This is done to prevent conflicting IP
addresses so that the bridges can associate. The bridge also defaults to an
automatic installation mode. In this mode, the bridge is configured so you can
establish a link and align the antenna without connecting it to a computer or
network.
The antenna alignment process verifies that the antenna provides an optimum
signal path for the link. You determine that the antenna is properly aimed by
panning and tilting it through the link's signal path (a predetermined number
of degrees of azimuth and elevation) while observing the bridge's RSSI
LEDs. As the antenna is panned and tilted, the LEDs indicate signal strength
by displaying varying amber patterns. The goal is to obtain as many
continuous amber RSSI LEDs as possible. All RSSI LEDs continuously
amber indicates maximum signal strength.
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