Show Ip Interface - Cisco Catalyst 4500 Series Command Reference Manual

Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches

show ip interface

To display the usability status of interfaces that are configured for IP, use the show ip interface
command.
Syntax Description type
number
Defaults This command has no default settings.
Command Modes EXEC
Command History Release
12.2(25)EW
Usage Guidelines The Cisco IOS software automatically enters a directly connected route in the routing table if the
interface is usable. A usable interface is one through which the software can send and receive packets.
If the software determines that an interface is not usable, it removes the directly connected routing entry
from the routing table. Removing the entry allows the software to use dynamic routing protocols to
determine backup routes to the network, if any.
If the interface can provide two-way communication, the line protocol is marked "up." If the interface
hardware is usable, the interface is marked "up."
If you specify an optional interface type, you see information only on that specific interface.
If you specify no optional arguments, you see information on all the interfaces.
When an asynchronous interface is encapsulated with PPP or Serial Line Internet Protocol (SLIP), IP
fast switching is enabled. The show ip interface command on an asynchronous interface that is
encapsulated with PPP or SLIP displays a message indicating that IP fast switching is enabled.
Examples This example shows how to display the usability status for a specific VLAN:
Switch# show ip interface vlan 1
Vlan1 is up, line protocol is up
Internet address is 10.6.58.4/24
Broadcast address is 255.255.255.255
Address determined by non-volatile memory
MTU is 1500 bytes
Helper address is not set
Directed broadcast forwarding is disabled
Outgoing access list is not set
Inbound
Proxy ARP is enabled
OL-27596 -01
show ip interface [type number]
Modification
Extended to include the 10-Gigabit Ethernet interface.
access list is not set
Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.4.0SG and IOS 15.1(2)SG)
(Optional) Interface type.
(Optional) Interface number.
show ip interface
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