Specifications

show ip interface
15-4 IP Configuration
Thisexampleshowshowtoenterconfigurationmodeforloopback1:
C3(su)->router#configure
C3(su)->router(Config)#interface loopback 1
C3(su)->router(Config-if(Lpbk 1))#
show ip interface
Usethiscommandtodisplayinformation,includingadministrativestatus,IPaddress,MTU
(MaximumTransmissionUnit)sizeandbandwidth,andACLconfigurations,forinterfaces
configuredforIP.
Syntax
show ip interface [vlan vlan-id] [loopback loop-id]
Parameters
Defaults
Ifinterfacetypeisnotspecified,statusinformationforallroutinginterfaceswillbedisplayed.
Mode
Anyroutermode.
Example
ThisexampleshowshowtodisplayconfigurationinformationforVLAN1:
C3(su)->router#show ip interface vlan 1
Vlan 1 is Admin DOWN
Vlan 1 is Oper DOWN
Primary IP Address is 192.168.10.1 Mask 255.255.255.0
Frame Type Ethernet
MAC-Address 0001.F45C.C993
Incoming Accesslist is not set
Outgoing AccessList is not set
MTU is 6145 bytes
ARP Timeout is 1 seconds
Direct Broadcast Disabled
Proxy ARP is Disabled
Table 15‐1providesanexplanationofthecommandoutput.
vlanvlan‐id (Optional)DisplaysinformationforaspecificVLANinterface.This
interfacemustbeconfiguredforIProutingasdescribedin“Pre‐Routing
ConfigurationTasks”onpage 14‐1.
loopbackloop‐id (Optional)Displaysinterfaceinformationforaspecificloopbackinterface.
Table 15-1 show ip interface Output Details
Output What It Displays...
Vlan N Whether the interface is administratively and operationally up or down.
IP Address Interface’s IP address and mask. Set using the ip address command as described in
“ip address” on page 15-5.