section exclude-ip-address (NAT64 instance address pool view)

Function

The section exclude-ip-address command excludes a specific IP address or a range of IP addresses from an IP address pool.

The undo section exclude-ip-address command restores a specific IP address or a range of IP addresses in an IP address pool.

By default, excluding an IP address or an address segment from an address pool in a specific section is prohibited.

This command is supported only on the NetEngine 8000 F1A.

Format

section section-id exclude-ip-address start-address [ end-address ]

undo section section-id exclude-ip-address start-address [ end-address ]

Parameters

Parameter	Description	Value
section-id	Specifies the ID of an address range.	The value is an integer ranging from 0 to 15.
start-address	Specifies a start IP address.	The value is in dotted decimal notation.
end-address	Specifies an end IP address.	The value is in dotted decimal notation.

Parameter

Description

Value

section-id

Specifies the ID of an address range.

The value is an integer ranging from 0 to 15.

start-address

Specifies a start IP address.

The value is in dotted decimal notation.

end-address

Specifies an end IP address.

The value is in dotted decimal notation.

Views

NAT64 instance address pool view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
nat	write

Usage Guidelines

Usage Scenario

If a specific IP address or a range of IP addresses is removed from a NAT64 address pool, the address pool has to be divided into multiple sub-pools so that each one contains a continuous range of IP addresses. Then the same configurations or operations have to be repeatedly performed on these pools. To address this problem, run the section exclude-ip-address command to remove a specific IP address or a range of IP addresses from a NAT64 address pool. Then the configurations or operations can be performed once on the address pool that has excluded the specified IP addresses.

Prerequisites

A NAT64 instance, its address pool, and address pool sections have been configured.

Precautions

A NAT64 instance, its address pool, and address pool sections have been configured. - The section exclude-ip-address command only removes a public IP address or a public IP address segment.
A maximum of 10 section exclude-ip-address command instances can be run for each address segment. The excluded address segments cannot overlap.
When you restore an IP address or an IP address range in a NAT64 address pool using the undo section exclude-ip-address command, the specified IP address or IP address range must be within the excluded IP address range.
If an address pool is configured by specifying mask, the device advertises specific UNRs instead of network segment UNRs after this command is run. If you run this command to exclude some public IP addresses, routes to the public IP addresses may fail to be advertised, and services may be interrupted.
Do not exclude all IP addresses of an address segment.

Example

# Enable a device to remove a range of IP addresses ranging from 10.0.0.5 to 10.0.0.10 from a NAT64 address pool named section1.

<HUAWEI> system-view
[~HUAWEI] nat64 instance nat1 id 1
[*HUAWEI-nat64-instance-nat1] nat64 address-group 1 group-id 1
[*HUAWEI-nat64-instance-nat1-nat64-address-group-1] section 1 10.0.0.0 10.0.0.255
[*HUAWEI-nat64-instance-nat1-nat64-address-group-1] section 1 exclude-ip-address 10.0.0.0 10.0.0.5