24 Fabric OS Administrator’s Guide
53-1001763-02
The Ethernet interface on your switch
2
Example of enabling DCHP
switch:admin> ipaddrset
Ethernet IP Address [10.1.2.3]:
Ethernet Subnetmask [255.255.255.0]:
Fibre Channel IP Address [220.220.220.2]:
Fibre Channel Subnetmask [255.255.0.0]:
Gateway IP Address [10.1.2.1]:
DHCP [Off]:on

Disabling 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 using an account assigned to the admin role.
2. Enter the ipAddrSet command.
3. Enter the network information in dotted-decimal notation for the Ethernet IPv4 address and in
semicolon-separated notation for IPv6.
If a static Ethernet address is not available when you disable DHCP, enter 0.0.0.0 at the
Ethernet IP address prompt.
4. Skip Fibre Channel prompts by pressing Enter.
5. When you are prompted for DHCP[On], disable it by entering off.
Example of disabling DHCP
switch:admin> ipaddrset
Ethernet IP Address [10.1.2.3]:
Ethernet Subnetmask [255.255.255.0]:
Fibre Channel IP Address [220.220.220.2]:
Fibre Channel Subnetmask [255.255.0.0]:
Gateway IP Address [10.1.2.1]:
DHCP [On]:off

IPv6 autoconfiguration

IPv6 can assign multiple IP addresses to each network interface. Each interface is configured with
a link local address in almost all cases, but this address is only accessible from other hosts on the
same network. To provide for wider accessibility, interfaces are typically configured with at least
one additional global scope IPv6 address. IPv6 autoconfiguration allows more IPv6 addresses, the
number of which is dependent on the number of routers serving the local network and the number
of prefixes they advertise.
NOTE
An upgrade from Fabric OS v6.1.0 or earlier, which does not support IPv6 autoconfiguration, to a
platform that does support IPv6 autoconfiguration, such as Fabric OS v6.2.0 or later, will cause IPv6
autoconfiguration to be enabled on the upgraded platform. In upgrades or downgrades between
versions of Fabric OS that support autoconfiguration, the enabled state of IPv6 autoconfiguration
will not be changed.