(Optional) Create a VPC¶
Scenarios¶
A VPC provides an isolated virtual network for ECSs. You can configure and manage the network as required.
Create a VPC by following the procedure provided in this section. Then, create subnets, security groups, and VPNs, and assign EIPs by following the procedure provided in subsequent sections based on your actual network requirements.
Procedure¶
Log in to the management console.
Click
in the upper left corner and select the desired region and project.On the console homepage, under Network, click Virtual Private Cloud.
Click Create VPC.
On the Create VPC page, set parameters as prompted.
During VPC creation, a default subnet will be created and you can also click Add Subnet to create more subnets for the VPC.
Table 1 VPC parameter description¶ Category
Parameter
Description
Example Value
Basic Information
Region
Specifies the desired region. Regions are geographic areas isolated from each other. Resources are region-specific and cannot be used across regions through internal network connections. For low network latency and quick resource access, select the nearest region.
eu-de
Basic Information
Name
Specifies the VPC name.
VPC-001
Basic Information
CIDR Block
Specifies the CIDR block for the VPC. The CIDR block of a subnet can be the same as the CIDR block for the VPC (for a single subnet in the VPC) or a subset (for multiple subnets in the VPC).
The following CIDR blocks are supported:
10.0.0.0 - 10.255.255.255
172.16.0.0 - 172.31.255.255
192.168.0.0 - 192.168.255.255
192.168.0.0/16
Basic Information
Tag
Specifies the VPC tag, which consists of a key and value pair. You can add a maximum of ten tags to each VPC.
The tag key and value must meet the requirements listed in Table 2.
Key: vpc_key1
Value: vpc-01
Subnet Settings
Name
Specifies the subnet name.
Subnet
Subnet Settings
CIDR Block
Specifies the CIDR block for the subnet. This value must be within the VPC CIDR range.
192.168.0.0/24
Subnet Settings
Gateway
Specifies the gateway address of the subnet.
192.168.0.1
Subnet Settings
DNS Server Address
The external DNS server address is used by default. If you need to change the DNS server address, ensure that the configured DNS server address is available.
192.168.1.0
Subnet Settings
NTP Server Address
Specifies the NTP server IP address. A maximum of four IP addresses can be configured. Multiple IP addresses must be separated using commas (,).
192.168.2.1
Subnet Settings
Tag
Specifies the subnet tag, which consists of a key and value pair. You can add a maximum of ten tags to each subnet.
The tag key and value must meet the requirements listed in Table 3.
Key: subnet_key1
Value: subnet-01
Table 2 VPC tag key and value requirements¶ Parameter
Requirements
Example Value
Key
Cannot be left blank.
Must be unique for the same VPC and can be the same for different VPCs.
Can contain a maximum of 36 characters.
Can contain only the following character types:
Uppercase letters
Lowercase letters
Digits
Special characters, including hyphens (-) and underscores (_)
vpc_key1
Value
Can contain a maximum of 43 characters.
Can contain only the following character types:
Uppercase letters
Lowercase letters
Digits
Special characters, including hyphens (-) and underscores (_)
vpc-01
Table 3 Subnet tag key and value requirements¶ Parameter
Requirements
Example Value
Key
Cannot be left blank.
Must be unique for each subnet.
Can contain a maximum of 36 characters.
Can contain only the following character types:
Uppercase letters
Lowercase letters
Digits
Special characters, including hyphens (-) and underscores (_)
subnet_key1
Value
Can contain a maximum of 43 characters.
Can contain only the following character types:
Uppercase letters
Lowercase letters
Digits
Special characters, including hyphens (-) and underscores (_)
subnet-01
The external DNS server address is used by default. If you need to change the DNS server address, select Custom for Advanced Settings and configure the DNS server addresses. You must ensure that the configured DNS server addresses are available.
Click Create Now.