reserved ip-address mac

Function

The reserved ip-address mac command enables the function of reserving IP address allocation records.

The undo reserved ip-address mac command disables the function of reserving IP address allocation records.

By default, a device does not reserve IP address allocation records.

Format

reserved ip-address mac

undo reserved ip-address mac

Parameters

None

Views

IP address pool view

Default Level

2: Configuration level

Usage Guidelines

After a user goes offline, the IP address is reclaimed. The status of the IP address then is set to Idle and the device does not reserve allocation records of the IP address. When the user attempts to go online again, the user wants to use the original IP address. However, the device does not reserve any allocation record of the IP address and the original IP address may have been allocated to another user.

To resolve this issue, you can enable the function of reserving IP address allocation records. If a user goes offline after this function is enabled, the status of the IP address is set to Expired and the device reserves allocation records of the IP address based on the user's MAC address. If the user attempts to go online again, the device preferentially allocates the original IP address to the user.

Example

# Enable the function of reserving IP address allocation records in the address pool named test.

<sysname> system-view
[sysname] ip pool test
[sysname-ip-pool-test] reserved ip-address mac