gateway unnumbered

Function

The gateway unnumbered command enables an address pool to borrow an interface address as a gateway address.

The undo gateway unnumbered command disables an address pool from borrowing an interface address as a gateway address.

By default, an address pool to borrow an interface address as a gateway address is disabled.

This command is supported only on the NetEngine 8000 F1A.

Format

gateway unnumbered interface { interface-name | interface-type interface-number }

undo gateway unnumbered

Parameters

Parameter	Description	Value
interface interface-type	Specifies the type of the interface.	-
interface interface-number	Specifies the number of the interface.	-
interface interface-name	Specifies the name of the interface.	-

Parameter

Description

Value

interface interface-type

Specifies the type of the interface.

interface interface-number

Specifies the number of the interface.

interface interface-name

Specifies the name of the interface.

Views

Bas IP address pool view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
ippool	write

Usage Guidelines

Usage Scenario

When you configure a gateway in an address pool, the gateway address and user address must be in the same network segment. In addition, the gateway address cannot be allocated to the user. This will waste many IP addresses. After the gateway unnumbered command is run, the loopback address of the device is used as the gateway address for all user IP addresses, the gateway address and user address may not be in the same network segment preventing IP addresses from being wasted.

You can run the gateway ip-address mask command to configure the gateway address in an address pool or run the gateway unnumbered interface interface-type interface-number command to enable an address pool to borrow an interface address as a gateway address. If an address pool is enabled to borrow an interface address as a gateway address and the loopback interface has two or more IP addresses, the main IP address is borrowed as the gateway address.

Prerequisites

The address to be borrowed must be a loopback address or the IP address of a physical interface, physical sub-interface, trunk interface, or trunk sub-interface.

Precautions

In VS mode, this command is supported only by the admin VS.

Currently, this command can be used only for the local IPv4 address pool.

If an address pool is bound to a domain, you must unbind the address pool from the domain. If the binding is not removed, you cannot configure an address pool to borrow an interface address as a gateway address, or delete or modify the configuration.

After the gateway unnumbered command is run, the configuration of the borrowed interface cannot be deleted or modified.

Example

# Enable the local address pool, pool1, to borrow the address of Loopback1 as a gateway address.

<HUAWEI> system-view
[~HUAWEI] ip pool pool1 bas local
 Info:It's successful to create an IP address pool
[*HUAWEI-ip-pool-pool1] commit
[~HUAWEI-ip-pool-pool1] gateway unnumbered interface loopback1