784 CHAPTER 59: IP ADDRESSING CONFIGURATION COMMANDS display ip interface brief ethernet 1/0*down: administratively down(s): spoofingInterface Physical Protocol IP AddressEthernet1/0 up up 192.168.0.1ip addressSyntax ip address ip-address { mask | mask-length } [ sub ]undo ip address [ ip-address { mask | mask-length } [ sub ] ]View Interface viewParameter ip-address: IP address of interface, in dotted decimal notation.mask: Subnet mask in dotted decimal notation.mask-length: Subnet mask length, the number of consecutive ones in the mask.sub: Secondary IP address for the interface.Description Use the ip address command to assign an IP address and mask to the interface.Use the undo ip address command to remove all IP addresses.Use the undo ip address ip-address { mask | mask-length } command to removethe primary IP address.Use the undo ip address ip-address { mask | mask-length } sub command toremove a secondary IP address.By default, no IP address is assigned to any interface.When assigning IP addresses to an interface, consider the following:■ You can assign only one primary IP address to an interface.Table 155 Description on fields of the display ip interface brief commandField Description*down The interface is administratively shut down with the shutdowncommand.(s) Spoofing attribute of the interface. It indicates that an interface whosenetwork layer protocol is displayed up may have no link present or thelink is set up only on demand.Interface Interface namePhysical Physical state of interfaceProtocol Network layer protocol state of interfaceIP Address IP address of interface (if no IP address is configured, “unassigned” isdisplayed.)
