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 User Guide Integrated Lights-Out 
 
 
iLO Diagnostic Port Configuration Parameters 
The iLO Diagnostic Port on the front of ProLiant BL p-Class servers enables you 
to access and troubleshoot server issues by using a diagnostic cable. The iLO 
Diagnostic Port uses a static IP address. It does not use DHCP to obtain an IP 
address, register with WINS or dynamic DNS, or use a gateway. The diagnostic 
port cable should not be left plugged in without an active network connection, as 
it will cause degraded network performance on the standard iLO network port. 
In Network Settings, you can configure specific diagnostic port information. For 
more information on using the diagnostic port and the diagnostic cable, refer to 
the Setup and Installation Guide for the blade server. 
The following are the fields that can be configured for the diagnostic port: 
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Enable NIC 
If Enable NIC is set to Yes, the diagnostic port is enabled. 
Transceiver Speed Autoselect 
Speed 
Duplex (on page 
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IP Address 
Use this parameter to assign a static IP address to iLO on your network. By 
default, the IP address is assigned by DHCP. By default, the IP address is 
192.168.1.1 for all iLO Diagnostic Ports. 
Subnet Mask 
− 
Use the subnet mask parameter to assign the subnet mask for the iLO 
Diagnostic Port. By default, the subnet mask is 255.255.255.0 for all iLO 
Diagnostic Ports. 
− 
The use of the diagnostic port is automatically sensed when an active 
network cable is plugged in to it. When switching between the diagnostic 
and back ports, you must allow 90 seconds for the network switchover to 
complete before attempting connection through the Web browser. 
NOTE:  The diagnostic port will not switch over if an active Remote 
Console session or a firmware update is in progress.