90 Sun StorageTek 2500 Series Array Hardware Installation Guide • September 2009
■ Dynamic Host Configuration Protocol (DHCP) IP addressing – IP addresses for
the Ethernet port are assigned dynamically from a DHCP server running
bootstrap protocol (BOOTP) services. An IP address assigned to an Ethernet port
is held only as long as needed. By default, DHCP is enabled at initial power-on.
■ Static IP Addressing – You assign a specific IP address to the Ethernet port of each
controller. Static IP addresses remain in effect until you modify or remove them or
you change the method of IP addressing for the Ethernet port to DHCP.
By default, if the controllers cannot find a DHCP server upon initial power-on, an
internal IP address is assigned to Ethernet port 1 of each controller:
■ The Ethernet port of Controller A is assigned IP address 192.168.128.101
■ The Ethernet port of Controller B is assigned IP address 192.168.128.102
■ The default subnet mask for each port is 255.255.255.0
To configure the Ethernet port on a controller with either dynamic or static IP
addressing, see one of the following sections:
■ “Configuring Dynamic (DHCP) IP Addressing” on page 90
■ “Configuring Static IP Addressing” on page 91
Configuring Dynamic (DHCP) IP Addressing
If BOOTP services are available on the DHCP server at initial power on of the
storage array, this server assigns a dynamic IP address for the Ethernet port on each
controller.
If a DHCP server is not available, the controller tray defaults to internal static IP
addresses as described in “Configuring the IP Address of the Controller Modules”
on page 89.
If you want to set up a DHCP server, refer to Appendix F for a description of how to
configure BOOTP services in Sun Solaris or Microsoft Windows environments.
You can restore DHCP IP addressing to Ethernet port 1 of either controller in either
of three ways:
■ Start a DHCP server on the same subnet, then reboot the 2500 Series Array.
■ Using the serial port interface (see “Using the Serial Port Interface to Assign IP
Addresses” on page 91).
■ Using the Sun StorageTek Common Array Manager (see the Sun StorageTek
Common Array Manager Software Installation Guide).
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