ip address
Use the ip address Interface Configuration (Ethernet, VLAN, Port-channel) mode command to define an IP address for an interface. Use the no form of this command to remove an IP address definition.
Syntax
Bluetooth Interface
ip address ip-address {mask | /prefix-length}
no ip address
In-Band interfaces:
ip address ip-address {mask | /prefix-length}
no ip address [ip-address]
Parameters
-
ip-address—Specifies the IP address.
-
mask—Specifies the network mask of the IP address.
-
prefix-length—Specifies the number of bits that comprise the IP address prefix. The prefix length must be preceded by a forward slash (/). (Range: 8–30)
Default Configuration
No IP address is defined for interfaces.
Command Mode
Interface (Ethernet, Port Channel, Bluetooth) Configuration mode
User Guidelines
Use the ip address command to define a static IP address on an interface.
In-Band interfaces
Multiple IP addresses are supported. A new defined IP address is added on the interface.
Defining a static IP address on an interface stops a DHCP client running on the interface and removes the IP address assigned by the DHCP client.
If a configured IP address overlaps another configured one a warning message is displayed. To change an existed IP address, delete the existed one and add the new one.
While no IP address is assigned either by DHCP client or manually the default IP address 192.168.1.254 is assigned on the Default VLAN.
Bluetooth interface
One IP address is supported. A new IP address defined on the Bluetooth interface overrides the previously defined IP address. The IP address configured on the Bluetooth interface cannot be on the same subnet as the addresses configured on the In-Band interfaces. The IP address on the Bluetooth interface does not support routing capabilities.
Examples
Example 1. The following example configures VLAN 1 with IP address 131.108.1.27 and subnet mask 255.255.255.0.
switchxxxxxx(config)# interface vlan 1
switchxxxxxx(config-if)# ip address 131.108.1.27 255.255.255.0Example 2. The following example configures 3 overlapped IP addresses.
switchxxxxxx(config)# interface vlan 1
switchxxxxxx(config-if)# ip address 1.1.1.1 255.0.0.0
switchxxxxxx(config)# exit
switchxxxxxx(config)# interface vlan 2
switchxxxxxx(config-if)# ip address 1.2.1.1 255.255.0.0
switchxxxxxx(config)# This IP address overlaps IP address 1.1.1.1/8 on vlan1, are you sure? [Y/N]Y
switchxxxxxx(config)# exit
switchxxxxxx(config)# interface vlan 3
switchxxxxxx(config-if)# ip address 1.3.1.1 255.255.0.0
switchxxxxxx(config)# This IP address overlaps IP address 1.1.1.1/8 on vlan1, are you sure? [Y/N]Y
switchxxxxxx(config)# exit
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