Updated on 2025-08-01 GMT+08:00

Collecting ECS Network Information

Before configuring policy-based routes for an ECS with multiple network interfaces, you need to collect network information about the ECS.

Table 1 lists the information to be collected for a Linux ECS using IPv4.

**Table 1** Linux ECS using IPv4 addresses
Type	Primary Network Interface	Extended Network Interface	How to Obtain
Source	IPv4 address: 10.0.0.115 Subnet IPv4 CIDR block: 10.0.0.0/24 Subnet IPv4 gateway: 10.0.0.1	IPv4 address: 10.0.1.183 Subnet IPv4 CIDR block: 10.0.1.0/24 Subnet IPv4 gateway: 10.0.1.1	Obtaining ECS Network Interface Addresses Obtaining Subnet CIDR Blocks and Gateway Addresses
Destination	IPv4 address: 10.0.2.12	N/A

Table 2 lists the information to be collected for a Windows ECS using IPv4.

**Table 2** Windows ECS using IPv4
Type	Primary Network Interface	Extended Network Interface	How to Obtain
Source	IPv4 address: 10.0.0.59 Subnet IPv4 gateway: 10.0.0.1	IPv4 address: 10.0.1.104 Subnet IPv4 gateway: 10.0.1.1	Obtaining ECS Network Interface Addresses Obtaining Subnet CIDR Blocks and Gateway Addresses
Destination	IPv4 address: 10.0.2.12	N/A

The above information is only for your reference.

Go to the ECS list page.
In the ECS list, click the target ECS name.
The Summary tab page of the ECS is displayed.
In the NICs area, view the IP addresses of the primary and extended network interfaces.

Go to the ECS list page.
In the ECS list, click the target ECS name.
The Summary tab page of the ECS is displayed.
In the ECS Information area, click the name of its VPC.
The Virtual Private Cloud page is displayed.
Locate the target VPC and click the number in the Subnets column.
The Subnets page is displayed.
In the subnet list, view the CIDR blocks of the subnets.
In the subnet list, click the subnet name.
The Summary page is displayed.
Click the IP Addresses tab and view the gateway addresses of the subnet.