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IP Interface Commands
4-167
ip address
This command sets the IP address for the currently selected VLAN interface. Use
the no form to restore the default IP address.
Syntax
ip address {ip-address netmask | bootp | dhcp}
no ip address
• ip-address - IP address
• netmask - Network mask for the associated IP subnet. This mask identifies
the host address bits used for routing to specific subnets.
• bootp - Obtains IP address from BOOTP.
• dhcp - Obtains IP address from DHCP.
Default Setting
IP address: 0.0.0.0
Netmask: 255.0.0.0
Command Mode
Interface Configuration (VLAN)
Command Usage
• You must assign an IP address to this device to gain management access over
the network or to connect the switch to existing IP subnets. You can manually
configure a specific IP address, or direct the device to obtain an address from a
BOOTP or DHCP server. Valid IP addresses consist of four numbers, 0 to 255,
separated by periods. Anything outside this format will not be accepted by the
configuration program.
• If you select the bootp or dhcp option, IP is enabled but will not function until a
BOOTP or DHCP reply has been received. Requests will be broadcast
periodically by this device in an effort to learn its IP address. (BOOTP and
DHCP values can include the IP address, default gateway, and subnet mask).
• You can start broadcasting BOOTP or DHCP requests by entering an ip dhcp
restart client command, or by rebooting the switch.
Note: Before you can change the IP address, you must first clear the current address
with the no form of this command.
Example
In the following example, the device is assigned an address in VLAN 1.
Related Commands
ip dhcp restart client (4-83)
Console(config)#interface vlan 1
Console(config-if)#ip address 192.168.1.5 255.255.255.0
Console(config-if)#