HP Integrity iLO 3 Operations Guide

Table 3 physical connection matrix
Required Connection ComponentsConnection Method
Console serial port
(RS-232)
• Host console
• Console serial port (RS-232) DB-9F to DB-9F cable (modem eliminator cable)
• Emulation terminal device (for example, a PC, laptop, or ASCII terminal)
These connection methods directly attach to the iLO 3 MP through the console serial port. This
is an RS-232 connection from a workstation to the server's iLO 3 MP console serial port. Serial
cable concentrators are used to provide switched access from one workstation to multiple
servers. Typically, the console serial port method is used by an administrator in the data center.
10/100 LAN cableLAN port
Remote access to the iLO 3 is a more convenient method. This remote access is through the
MP LAN port. Depending on your LAN administration, this can be restricted to the datacenter,
or extended outside the data center to your company's intranet.
The iLO 3 has a separate LAN port from the system LAN port. It requires a separate LAN drop,
IP address, and networking information from that of the operating system LAN port.
Determining the iLO 3 MP LAN configuration method
To access iLO 3 through the MP LAN, iLO 3 must acquire an IP address. The way iLO 3 acquires
an IP address is dependent upon whether DHCP is enabled or disabled on the server, and if DHCP
and DNS services are available to the server (see Table 4).
Once you have determined the iLO 3 access method, you must determine how you will configure
the MP LAN in order to acquire an IP address using the following methods:
• DHCP/DNS through the management LAN (dynamically assigns an IP address): use the DNS
name on the iLO Network Information Tag located on the front panel.
• Setting up a static IP address using a laptop with DHCP services and the management LAN.
• Local RS-232 serial port and a serial console (assigns a static IP address).
Table 4 provides all the possible IP address acquisition scenarios. Use this table to help you select
the appropriate LAN configuration method to obtain an IP address.
Table 4 LAN configuration methods
LAN Configuration MethodRS-232 Serial Port (iLO 3 MP
LC command)
DNSDHCP
DHCPNoYesYes
DHCP or RS-232 serial portYesYesYes
RS-232 serial portYesYesNo
RS-232 serial portYesNoYes
RS-232 serial portYesNoNo
Cannot set up the LAN; reconsider your criteriaNoNoYes
Configuring the iLO 3 MP LAN using DHCP and DNS
DHCP automatically configures all DHCP-enabled servers with IP addresses, subnet masks, and
gateway addresses. All HP Integrity entry class servers with iLO 3 are shipped from the factory
with DHCP enabled.
HP recommends using the DHCP and DNS method to simplify access to iLO 3.
24 Getting connected to iLO 3