Configuring 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 Release Notes for VOSS.

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<0-16>] [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, and enable OSPF on the 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 Canada
Switch:1>show ip interface
====================================================================================================
                          IP Interface - GlobalRouter
====================================================================================================
INTERFACE    IP             NET            BCASTADDR  REASM    VLAN  BROUTER    IPSEC    IP
             ADDRESS        MASK           FORMAT     MAXSIZE  ID    PORT       STATE    NAME
----------------------------------------------------------------------------------------------------
Port1/2      10.3.4.2       255.255.255.0  ones       1500     3     true       disable  address1
Clip1        1.2.3.4        255.255.0.0    ones       1500     --    false      disable
Clip2        2.3.4.5        255.255.255.0  ones       1500     --    false      disable
Clip23       23.23.23.23    255.255.255.0  ones       1500     --    false      disable  Canada
Vlan2        192.0.2.5      255.255.255.0  ones       1500     2     false      disable
Vlan55       55.55.55.55    255.255.255.0  ones       1500     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.

Table 1. Variable definitions

Variable

Value

address [ <1-256> ] <A.B.C.D/X> [vrf WORD<0-16> ][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<0-16> specifies an associated VRF by name.

The no form of this command is no ip address [<1-32>] <A.B.C.D> [vrf WORD<0-16>].

name WORD<0-16> specifies a name for the IP address.

area <1-256> <A.B.C.D> [vrf WORD<0-16> ]

Designates an area for the CLIP interface.

vrf WORD<0-16> specifies an associated VRF by name

The default form of this command is default ip area <1-256> <A.B.C.D> [vrf WORD<0-16>]. The no form of this command is no ip area <1-256> vrf WORD<0-16>].
9036830-00 Rev AD