User Guide

Create IP Subnet

Last updated: 2024-10-24 17:52:44

Overview

An IP subnet is a network space of a private network. Cloud resources are deployed in the subnet. There is at least one IP subnet in a private network. IP subnets have availability zone attributes. Subnets in different availability zones can be created under the same private network. By default, subnets in different availability zones under the same private network can be interconnected within the internal network.

Scenarios

Create an IP subnet on the IP subnet console page.

Directions

Log in to the cloud server console.
In the left navigation tree, select "Network > IP Subnet" to jump to the IP subnet list page. Then continue to click "New".

Jump to the new IP subnet page. According to the prompt information and parameter descriptions on the page, complete the following configuration operations.

After confirming that the information is accurate, click the "OK" button. The new creation operation can be completed.

Parameters

VPC

Parameter	Description
Region	Select the region where the private network is located. Private networks in different regions are isolated. It is recommended to choose a region closer to your business to reduce network latency and improve access speed.
Private network	Select the private network where the IP subnet is located. If there are no options to select, please refer to Create VPC for operations.
IPv4 CIDR block	Display the CIDR of the selected private network.

IP Subnet

Parameter	Description
Name	Customized: Set the name of the IP subnet. Generated automatically: If not modified, the system will generate it automatically.
Availability zone	An availability zone refers to a physically isolated area within the same region in terms of power and network. Within the same private network, private networks between availability zones are interconnected. You can deploy each subnet in different availability zones in the private network to achieve resource disaster recovery between availability zones. You can also deploy each subnet in the same availability zone to achieve lower network latency.
IPv4 CIDR block	Set the CIDR block of the subnet. The network CIDR block must be within the address range of the private network and cannot overlap with the existing subnet addresses. The first two and last IP addresses of each subnet network segment are system reserved addresses and are used as the network address, gateway address, and broadcast address respectively. For example, if the subnet network segment is 192.168.1.0/24, the system reserved addresses are 192.168.1.0, 192.168.1.1, and 192.168.1.255 and cannot be used. After the subnet is created successfully, the network segment cannot be modified.
Description	Customized. Briefly describe the IP subnet to facilitate later management.