Cisco Cisco Aironet 1400 Wireless Bridge Notas de publicación

The bridge sometimes cannot detect invalid software images when you load software using the copy 
command. For best results, use the archive download command in the CLI to load new software.

When an unconfigured 1400 series bridge boots, it starts up in the install mode as a root bridge. In this 
mode, the bridge attempts to obtain an IP address from a DHCP server. If no DHCP response is received, 
the bridge assigns an IP address of 10.0.0.1 to the BVI interface and starts a five minute timer. During 
this five-minute time window, you can browse to the default IP address and configure a static IP address. 
If after five minutes, the bridge is not reconfigured, it discards the 10.0.0.1 address and reverts to 
requesting an address from a DHCP server. If it does not receive an address, it sends requests 
indefinitely. If you miss the five-minute window for browsing to the bridge at 10.0.0.1, you can 
power-cycle the bridge to repeat the process.

If have configured a static IP address and want to reset the bridge to its default settings but retain the IP 
address, use the write erase or erase /all nvram command. If you want to erase everything including the 
static IP address, in addition to the above commands, use the erase and erase boot static-ipaddr 
static-ipmask command.

You should never delete any of the system files prior to resetting defaults or reloading software.

The bridge is implemented with an unmanaged and unconfigurable 10/100baseT switch embedded in the 
power injector. All ports on the switch are set for auto-speed, auto-duplex, and auto-MDIX. Port 0 on 
the switch is used for the coaxial link to the access point/bridge. Port 1 on the switch is used for the RJ45 
jack on the power injector.

The speed and duplex settings on the bridge FastEthernet0 interface apply only to the link between the 
bridge port and port 0 on the power injector. They are entirely independent of the speed and duplex 
settings used on the RJ45 port (port 1) on the power injector. Therefore, for best performance, you should 
not change the port 0 default settings. The default settings result in a 100Mbps, full-duplex configuration 
used on the link between the bridge and the power injector switch.

The connecting port (the port on the device connected to the power injector’s RJ45) must be set to half 
duplex or (preferably) auto duplex. If it is set to auto-duplex, the power injector switch port should 
negotiate full duplex. If it is set to half duplex, the power injector switch port falls back to half-duplex. 
The connecting port must not be configured to full duplex. If it is, the power injector switch port fails to 
negotiate full-duplex, falls back to half duplex, which causes a duplex mismatch.

The following guidelines for setting Ethernet speed and duplex should always be observed:

The internal FastEthernet0 interface should always be set for speed auto and duplex auto regardless 
of the settings of the device to which the external LAN port on the power injector is connected (the 
connecting port).

The connecting port should always be set for one of the following:

100 Mbps, auto duplex (recommended)

100 Mbps, half duplex