ADTRAN 1000R Series

Command Reference Guide ATM Sub-Interfa c e Config Command Set

ip unnumbered <interface>

Use the ip unnumbered command to use the IP address assigned to the specified interface for all IP

processing on the active interface. Use the no form of this command to remove the unnumbered

configuration.

Syntax Description

<interface> Specifies the interface (in th e format type slot/port) that contains the IP address

to use as the source address for all packets transmitted on this interface.

Default Values

By default, all interfaces are configured to use a specified IP address (using the ip address command).

Applicable Platforms

This command applies to the NetVanta 300, 1000R, 3000, and 4000 Series units.

Command History

Release 1.1 Command was introduced.

Release 8.1 ATM sub-interface was added.

Functional Notes

If ip unnumbered is enabled on an interface, all IP traffic from the interface will use a source IP address

taken from the specified interface. For example, specifying ip unnumbered eth 0/1 while in the Frame

Relay Sub-Interface Configuration mode configures the Frame Relay sub-interface to use the IP address

assigned to the Ethernet interface for all IP processing. In ad dit ion , th e A OS us es th e sp ecif ied interface

information when se nding route updates over the unnumbered interface.

Usage Examples

The following example configu res the ATM sub-interface 1.1 to use the IP address assigned to the

Ethernet interface (eth 0/1):

(config)#interface atm 1.1

(config-atm 1.1)#ip unnumbered eth 0/1