ADTRAN 1000R Series - Manual (Page 823)

Command Reference Guide Demand Interface Configuration Command Set
61200510L1-35E Copyright © 2005 ADTRAN 823
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 the 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 processing. In addition, the AOS uses the specified interface information when
sending route updates over the unnumbered interface. Static routes may either use the interface 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