How to modify the router AR address pool address range?

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AR router can configure the NAT address pool via the "NAT address-group" command. Delete the NAT address pool by executing the "undo NAT address-group" command.
If you need to modify the NAT address pool address range 10.1.1.1~10.1.1.10 to 10.1.1.1~10.1.1.20, the specific configuration is as follows:

1 first delete the existing NAT address pool
[Huawei] undo address-group NAT 1
2 configure the NAT address pool range of 10.1.1.1~10.1.1.20
[Huawei] NAT address-group 1 10.1.1.1 10.1.1.20

Other related questions:
How do I modify the address range of the address pool on the AR router
The nat address-group command can be used to configure a NAT address pool. The undo nat address-group command deletes a NAT address pool. To change the IP address range from 10.1.1.1-10.1.1.10 to 10.1.1.1-10.1.1.20, perform the following operations: 1. Delete the existing NAT address pool. [Huawei] undo nat address-group 1 2. Configure the IP address range as 10.1.1.1-10.1.1.20. [Huawei] nat address-group 1 10.1.1.1 10.1.1.20

How is global address pool modified on an AR
A Huawei AR allows the global address pool to be changed using command lines. Assume that the global address pool is on the network segment 10.1.1.0/24 and the network segment needs to be changed to 10.1.2.0/24. Perform the following configurations: [Huawei] ip pool pool1 [Huawei-ip-pool-pool1] undo network //Delete the original network segment. [Huawei-ip-pool-pool1] network 10.1.2.0 mask 255.255.255.0 //Configure the current network segment.

How to configure a virtual address of VRRP on an AR router
How to configure a virtual address of VRRP on an AR router? The vrrp vrid virtual-router-id virtual-ip virtual-address command is used to create a VRRP group and specify a virtual IP address for the group. The vrid virtual-router-id command is used to specify a VRRP group number which is an integer in the range from 1 to 255. The virtual-ip virtual-address command is used to specify a virtual IP address (dotted decimal notation) for the VRRP group. [Huawei] interface gigabitethernet 1/0/0 [Huawei-GigabitEthernet1/0/0] vrrp vrid 1 virtual-ip 10.10.10.10 //Create a VRRP group on GE1/0/0. The group number is 1, and the virtual IP address is 10.10.10.10.

Delete DNS parameters on S series switch
If an S series switch (except an S1700 switch) delivers the DNS server IP address to clients through DHCP, the DNS server IP address can be deleted using commands. For example, if the DNS server IP address 10.1.1.1/24 has been configured on a switch, you can delete it as follows: - If the original configuration is based on a global address pool: [Huawei] ip pool pool1 [Huawei-ip-pool-pool1] undo dns-list 10.1.1.1 //Delete the DNS server IP address. - If the original configuration is based on an interface address pool: [Huawei] interface vlanif 10 //Enter the view of the DHCP server interface connected to clients. [Huawei-Vlanif10] undo dhcp server dns-list 10.1.1.1 //Delete the DNS server IP address. - If the original configuration is based on a DHCP Option template: [Huawei] dhcp option template temp1 [Huawei-dhcp-option-template-temp1] undo dns-list 10.1.1.1 //Delete the DNS server IP address. Additionally, clients need to release their original IP addresses and apply for new IP addresses from the DHCP server.

How is address pool configured on an AR
When a DHCP server needs to be redeployed, you need to migrate the address pool on the DHCP server to another DHCP server on the live network. To retain the addresses that have been assigned to clients from a global address pool, run the lock command to lock the global address pool. After the lock command is run, the specified IP address pool is locked and IP addresses in this address pool cannot be assigned to clients. When new users get online after the address pool is migrated, they apply for IP addresses from a new address pool. Perform the following configuration: [Huawei] ip pool global1 [Huawei-ip-pool-global1] lock

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