ADTRAN 1000R Series

Command Reference Guide Demand Interface Configuration 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. Type

show ip unnumbered interface ? for a list of valid interfaces.

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 1000R, 3000, 4000, and 5000 Series units.

Command History

Release 1.1 Command was introduced.

Release 11.1 Command expanded to include the demand interface.

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 Demand

Interface Configuration mode configures the demand interface to use the IP address assigned to the

Ethernet interface for all IP proce ssing. In addition, the AOS uses the specified interface information when

sending route updates over the unn umbered interface. Static routes may either use the interf ace name

(ppp 1) or the far-end address (if it will be discovered).

Usage Examples

The following example configures the demand interface (labeled demand 1) to use the IP address

assigned to the Ethernet interface (eth 0/1):

(config)#interface demand 1

(config-demand 1)#ip unnumbered eth 0/1