Configure a CLIP Interface

About this task

Configure a circuitless IP (CLIP) interface to provide a virtual interface that is not associated with a physical port. You can use a CLIP interface to provide uninterrupted connectivity to your device.

For scaling information and for information on the maximum number of CLIP interfaces you can configure on your device, see VOSS Release Notes.

Procedure

  1. Enter Global Configuration mode:

    enable

    configure terminal

  2. Create or access a CLIP interface:

    interface loopback <1-256>

    <1-256> indicates the identification number for the CLIP.

    The command prompt changes to indicate you now access the Loopback Interface Configuration mode.

  3. Configure an IP address and name for the interface:

    ip address [<1-256>] <A.B.C.D/X> [vrf WORD<1-16>] [name WORD <0-64>]

  4. Enable OSPF on the CLIP interface:

    ip ospf [<1-256>] [vrf WORD<1-16>]

    You can configure other protocols on the CLIP interface; OSPF is the most common. See the following variable definitions table for other options.

  5. View the IP address on the CLIP interface:

    show ip interface

Example

Create a CLIP interface.

Switch:1>enable
Switch:1#configure terminal
Switch:1(config)#interface loopback 3
Switch:1(config-if)#ip address 23.23.23.23 255.255.255.0 name ExtNet
Switch:1>show ip interface
=============================================================================================
                          IP Interface - GlobalRouter
=============================================================================================
INTERFACE  IP            NET            ADMIN      OPER    VLAN  BROUTER  IPSEC    IP
           ADDRESS       MASK           STATUS     STATUS  ID    PORT     STATE    NAME
---------------------------------------------------------------------------------------------
Port1/2    10.3.4.2      255.255.255.0  enable      up     3     true     disable  address1
Clip1      1.2.3.4       255.255.0.0    enable      up     --    false    disable
Clip2      2.3.4.5       255.255.255.0  enable      up     --    false    disable
Clip23     23.23.23.23   255.255.255.0  enable      up     --    false    disable  ExtNet
Vlan2      192.0.2.5     255.255.255.0  enable      up     2     false    disable
Vlan55     55.55.55.55   255.255.255.0  enable      up     55    false    disable  Boston

All 6 out of 6 Total Num of IP interfaces displayed

Variable Definitions

Use the data in the following table to use the ip commands.

Variable

Value

address [ <1-256> ] <A.B.C.D/X> [vrf WORD<1-16> ][name WORD<0-64]

Specifies the IP address for the CLIP interface.

<1-256> specifies the interface.

<A.B.C.D/X> specifies the IP address and mask (0–32).

vrf WORD<1-16> specifies an associated VRF by name.

The no form of this command is no ip address [<1-32>] <A.B.C.D> [vrf WORD<1-16>].

name WORD<1-16> specifies a name for the IP address.

area <1-256> <A.B.C.D> [vrf WORD<1-16> ]

Designates an area for the CLIP interface.

vrf WORD<1-16> specifies an associated VRF by name

The default form of this command is default ip area <1-256> <A.B.C.D> [vrf WORD<1-16>]. The no form of this command is no ip area <1-256> vrf WORD<1-16>].
9037602-00 Rev AB