HP 7000 dl Router manual Ip unnumbered interface

SROS Command Line Interface Reference Guide Loopback 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 the format type slot/port (e.g., ppp 1) that contains the
	IP address to be used as the source address for all packets transmitted on this
	interface. Enter ip unnumbered ? for a complete list of valid interfaces.
Default Values

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

Command Modes

(config-interface)#	Interface Configuration Mode required
	Valid interfaces include: Ethernet (eth 0/1), virtual Frame Relay sub-interfaces (fr
	1.16), virtual PPP interfaces (ppp 1), and loopback interfaces

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 ppp 1 while in the Ethernet Interface Configuration Mode configures the Ethernet interface to use the IP address assigned to the PPP interface for all IP processing. In addition, the Secure Router OS uses the specified interface information when sending route updates over the unnumbered interface.

Usage Examples

The following example configures the loopback interface (labeled loop 1) to use the IP address assigned to the PPP interface (ppp 1):

(config)#interface loopback 1 (config-loop 1)#ip unnumbered ppp 1

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