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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
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 Subinterface Configuration mode configures the Frame Relay subinterface 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 the virtual local area network (VLAN) interface (labeled vlan 1) to use
the IP address assigned to the Ethernet interface (eth 0/1):
(config)#interface vlan 1
(config-interface-vlan 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 | ap | ap/radio | ap/radio.vap]>. 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; for an ATM subinterface, use atm 1.1; and for a
wireless virtual access point, use dot11ap 1/1.1. Type ip unnumbered ?
for a list of valid interfaces.
Command was introduced.
Command was expanded to include the demand interfaces.
Copyright © 2012 ADTRAN, Inc.
VLAN Interface Command Set
2752
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