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 Linux ECS using IPv6.

**Table 2** Linux ECS using IPv6 addresses
Type	Primary Network Interface	Extended Network Interface	How to Obtain
Source	IPv4 address: 10.0.0.102 IPv6 address: 2407:c080:1200:1dd8:859c:e5d5:8b3d:a2d9 Subnet IPv6 CIDR block: 2407:c080:1200:1dd8::/64 Subnet IPv6 gateway: 2407:c080:1200:1dd8::1	IPv4 address: 10.0.1.191 IPv6 address: 2407:c080:1200:1a9c:7cc0:63b5:8e65:4dd8 Subnet IPv6 CIDR block: 2407:c080:1200:1a9c::/64 Subnet IPv6 gateway: 2407:c080:1200:1a9c::1	Obtaining ECS Network Interface Addresses Obtaining Subnet CIDR Blocks and Gateway Addresses
Destination	IPv4 address: 10.0.2.3 IPv6 address: 2407:c080:1200:1dd9:16a7:fe7a:8f71:7044	N/A

Table 3 lists the information to be collected for a Windows ECS using IPv4.

**Table 3** 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

Table 4 lists the information to be collected for a Windows ECS using IPv6.

**Table 4** Windows ECS using IPv6
Type	Primary Network Interface	Extended Network Interface	How to Obtain
Source	IPv6 address: 2407:c080:802:aba:6788:fb94:d71f:8deb	IPv6 address: 2407:c080:802:be6:71c8:42e0:d44e:eeb4	Obtaining ECS Network Interface Addresses
Destination	IPv6 address: 2407:c080:802:be7:c2e6:d99c:b685:c6c8	N/A	Obtaining ECS Network Interface Addresses

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.
You can view the IPv4 and IPv6 addresses of network interfaces.

Figure 1 IPv4 and IPv6 addresses of 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.
You can view the IPv4 and IPv6 CIDR blocks of subnets.

Figure 2 IPv4 and IPv6 CIDR blocks of 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.
You can view the IPv4 and IPv6 addresses of a gateway.

Figure 3 IPv4 and IPv6 addresses of a gateway