HP StorageWorks 2/128 HP StorageWorks Fabric OS 5.3.x administrator guide (569 - Page 31
DHCP summary, How to enable DHCP
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DHCP summary Plug DHCP enabled switches in to the network, power on the switch, and the switch automatically obtains the Ethernet IP address, Ethernet subnet mask, and default gateway address from the DHCP server. The DHCP client can only connect to a DHCP server on the same subnet as the switch. Do not enable DHCP, if the DHCP server is not on the same subnet as the switch. Enabling DHCP after the Ethernet information has been configured releases the current Ethernet network interface settings, including Ethernet IP, Ethernet Subnetmask, and Gateway. The Fibre Channel (FC) IP address and subnet mask is static and is not affected by DHCP, see "How to set static addresses for the Ethernet network interface" on page 30 for instructions on setting the FC IP address. How to enable DHCP 1. Connect to the switch and log in as admin. 2. Enter the following command: switch:admin> ipaddrset Ethernet IP Address [192.168.74.102]: Ethernet Subnetmask [255.255.255.0]: Fibre Channel IP Address [220.220.220.2]: Fibre Channel Subnetmask [255.255.0.0]: Gateway IP Address [192.168.74.1]: DHCP [Off]:on 3. Press Enter to skip the Ethernet IP address, Ethernet Subnetmask, Fibre Channel IP address and subnet mask prompts if already set. 4. When prompted for DHCP[Off], enable it by typing On: switch:admin> ipaddrset Ethernet IP Address [192.168.74.102]: Ethernet Subnetmask [255.255.255.0]: Fibre Channel IP Address [220.220.220.2]: Fibre Channel Subnetmask [255.255.0.0]: Gateway IP Address [192.168.74.1]: DHCP [Off]:on How to disable DHCP When you disable DHCP, enter the static Ethernet IP address and subnet mask of the switch and default gateway address. Otherwise, the Ethernet settings may conflict with other addresses assigned by the DHCP server on the network. 1. Connect to the switch and log in as admin. 2. Enter the following command: switch:admin> ipaddrset Ethernet IP Address [192.168.74.102]: Ethernet Subnetmask [255.255.255.0]: Fibre Channel IP Address [220.220.220.2]: Fibre Channel Subnetmask [255.255.0.0]: Gateway IP Address [192.168.74.1]: DHCP [Off]:off Enter the network information in dotted decimal format for Ethernet IP address, Ethernet Subnetmask, and Gateway Address at the prompts. If a static Ethernet address is not available when you disable DHCP, enter 0.0.0.0 at the Ethernet IP address prompt. Skip Fibre Channel prompts by pressing Enter. Disable DHCP by typing Off. Fabric OS 5.3.0 administrator guide 31
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