Brocade Fabric OS Administrators Guide (Supporting Fabric OS v7.3.0) - Manual (Page 50)

3. Enter the network information in dotted-decimal notation for the Ethernet IPv4 address or in
semicolon-separated notation for IPv6.
4. Enter the Ethernet Subnetmask at the prompt.
DHCP activation
Some Brocade switches have DHCP enabled by default. Fabric OS support for DHCP functionality is
only provided for Brocade fixed-port switches. These are listed in the
Supported hardware and
software .
NOTE
The Brocade DCX and Brocade DCX-4S Backbones do not support DHCP.
The Fabric OS DHCP client supports the following parameters:
• External Ethernet port IP addresses and subnet masks
• Default gateway IP address
The DHCP client uses a DHCP vendor-class identifier that allows DHCP servers to determine that the
discover/request packet are coming from a Brocade switch. The vendor-class identifier is the string
"BROCADE" followed by the SWBD model number of the platform. For example, the vendor-class
identifier for a request from a Brocade 5300 is "BROCADESWBD64."
NOTE
The client conforms to the latest IETF Draft Standard RFCs for IPv4, IPv6, and DHCP. DHCP can
obtain stateful IPv6 addresses.
Enabling DHCP for IPv4
When you connect a DHCP-enabled switch to the network and power on the switch, the switch
automatically obtains the Ethernet IP address, Ethernet subnet mask, and default gateway address
from the DHCP server.
NOTE
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. These include the Ethernet IP address, Ethernet subnet mask, and
gateway IP address. The Fibre Channel IP address and subnet mask are static and are not affected
by DHCP; for instructions on setting the FC IP address, see
Static Ethernet addresses on page 48.
1. Connect to the switch and log in using an account assigned to the admin role.
2. Enter the ipAddrSet command.
ipaddrset
NOTE
Alternatively, you can enable DHCP for IPv4 by entering ipaddrset -ipv4 -add -dhcp ON as a
single command. If you do so, you do not need to complete the following steps.
DHCP activation
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