How to expand the IP segment on the AR

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When addresses in the address pool are insufficient, use the following two methods.
- Increase the mask.
[Huawei] ip pool global1
[Huawei-ip-pool-global1] undo network
[Huawei-ip-pool-global1] network 192.168.0.0 mask 16 //Change the mask from 24-bit mask 255.255.255.0 to 16-bit mask 255.255.0.0.
There are great changes. The mask on the DHCP client needs to be changed manually to 16-bit.
-Create an address pool and configure the primary address of the interface as the address on the network segment.
[Huawei] ip-pool new_p//Create an address pool.
[Huawei-ip-pool-new_p] network 192.168.2.0 mask 255.255.255.0
[Huawei-ip-pool-new_p] quit
[Huawei] interface gigabitethernet1/0/0
[Huawei-GigabitEthernet1/0/0] ip address 192.168.2.1 255.255.255.0//Configure the same network segment of new addresses as that of the primary IP address.
[Huawei-GigabitEthernet1/0/0] ip address 192.168.1.1 255.255.255.0 sub//Configure the same network segment of old addresses as that of the secondary IP address.
Automatically allocated addresses are addresses on the new network segment.

Other related questions:
How are subnets assigned on an AR
When many hosts are distributed on an internal network, the internal host IDs can be divided into multiple subnet IDs to facilitate management. A network can be divided into multiple subnets to conserve IP address space and support flexible IP addressing. Subnetting is implemented within the internal network. The internal network has only one network ID for the external network. When packets are transmitted from the external network to the internal network, the router on the internal network selects a route for the packets based on the subnet ID and finds the destination host. Take subnet division of an IP address in Class B as an example. The subnet mask consists of a string of continuous 1s and 0s. The digit 1 corresponds to the network ID and subnet ID fields, while the digit 0 corresponds to the host ID field. The first 5 bits of the host ID is used as the subnet ID. The subnet ID ranges from 00000 to 11111, allowing a maximum of 32 (25) subnets. Each subnet ID has a subnet mask. For example, the subnet mask of the subnet ID 11111 is 255.255.248.0. After performing an AND operation on the IP address and the subnet mask, you can obtain the network address. Subnetting reduces the available IP addresses. For example, a Class B IP address contains 65534 (216 - 2) host IDs. After 5 bits in the host ID are used as the subnet ID, there can be a maximum of 32 subnets, each having an 11-bit host ID. Each subnet has a maximum of 2046 host IDs (211 - 2, excluding the host IDs with all 1s and all 0s). Therefore, the IP address has a maximum of 65472 (32 x 2046) host IDs, 62 less than the maximum number of host IDs before subnetting.

Subnetting on an S series switches
A network can be divided into multiple subnets to conserve IP address space and support flexible IP addressing. When many hosts exist on an internal network, the internal host IDs can be divided into multiple subnets to facilitate management. Then the entire network contains multiple small networks. Subnetting is implemented within an internal network. The internal network has only one network ID for the external network. When packets are transmitted from the external network to the internal network, the routing device on the internal network selects a route for the packets based on the subnet ID and find the destination host. Take subnet division of an IP address in Class B as an example. The subnet mask consists of a string of continuous 1s and 0s. 1s correspond to the network ID field and the subnet ID field while 0s correspond to the host ID field. The first 5 bits of the host ID is used as the subnet ID. The subnet ID ranges from 00000 to 11111, allowing for a maximum of 32 (2 to the power of 5) subnets. Each subnet ID has a subnet mask. For example, the subnet mask of the subnet ID 11111 is 255.255.248.0. After performing an AND operation on the IP address and the subnet mask, you can obtain the network address. Subnetting reduces the available IP addresses. For example, normally an IP address of Class B can contain 65534 (216 �?2) host IDs. After 5 bits in the host ID are used as the subnet ID, there can be a maximum of 32 subnets, each with an 11-bit host ID. That is, each subnet has a maximum of 2046 host IDs (211 �?2, excluding the host IDs with all 1s and all 0s). Therefore, the IP address has a maximum of 65472 (32 x 2046) host IDs, 62 less than the maximum number of host IDs before subnetting.

How to set the IP addresses of the IP phone and PC to be in different IP network segments?
1. Log in the phone's web page as the administrator. 2. Choose Advanced > Network > Vlan. On the displayed page, configure the VLAN ID for the LAN port and PC port. 3. Set the switch to trunk mode.

Configure rate limiting for a network segment on an AR
1. Configure an ACL to match the network segment on which the rate of packets needs to be limited. # acl number 2000 //Create ACL 2000. rule 0 permit source 192.168.1.0 0.0.0.255 //Configure rule 0 to allow packets with source IP address 192.168.1.0 to pass. # 2. Configure rate limiting for the data flow that matches a traffic classifier on the interface connecting to intranet users. # interface GigabitEthernet3/0/0 ip address 192.168.1.1 255.255.255.0 qos car inbound acl 2000 cir 512 cbs 32000 pbs 432000 green pass yellow pass red discard //Configure traffic monitoring for packets that match ACL 2000 on the inbound interface, and specify CIR to 512 kbit/s. #

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