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Command Reference Guide
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>
Default Values
By default, all interfaces are configured to use a specified IP address (using the ip address command).
Command History
Release 1.1
Release 11.1
Release 15.1
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 BVI
Configuration mode configures the BVI to use the IP address assigned to the Ethernet interface for all IP
processing. In addition, AOS uses the specified interface information when sending route updates over the
unnumbered interface.
Usage Examples
The following example configures BVI 1 to use the IP address assigned to the Ethernet interface (eth 0/1):
(config)#interface bvi 1
(config-bvi 1)#ip unnumbered eth 0/1
60000CRG0-35E
Specifies the interface that contains the IP address to use as the source
address for all packets transmitted on this interface. Specify an interface in
the format <interface type [slot/port | slot/port.subinterface id | interface id |
interface id.subinterface id]>. For example, for a T1 interface, use t1 0/1; for
an Ethernet subinterface, use eth 0/1.1; for a PPP interface, use ppp 1; and
for an ATM subinterface, use atm 1.1. Type ip unnumbered ? for a list of
valid interfaces.
Command was introduced.
Command was expanded to include the demand interfaces.
Command was expanded to include the bridged virtual interfaces (BVIs).
Copyright © 2012 ADTRAN, Inc.
BVI Interface Command Set
2075
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