Scenarios
You can bind multiple EIPs to an ECS. However, this configuration is not recommended.
To bind multiple EIPs to an ECS, you must manually configure routes.
Configuration Example
Table 1 lists ECS configurations.
Table 1 ECS configurationsParameter
|
Configuration
|
Name
|
ecs_test
|
Image
|
CentOS 6.5 64bit
|
EIP
|
2
|
Primary NIC
|
eth0
|
Secondary NIC
|
eth1
|
Example 1:
If you are required to access public network 11.11.11.0/24 through standby NIC
eth1, perform the following operations to configure a route:
- Log in to the ECS.
- Run the following command to configure a route:
ip route add 11.11.11.0/24 dev eth1 via 192.168.2.1
In the preceding command, 192.168.2.1 is the gateway IP address of standby NIC eth1.
Example 2:
Based on example 1, if you are required to enable routing for default public network traffic through standby NIC eth1, perform the following operations to configure a route:
- Log in to the ECS.
- Run the following command to delete the default route:
ip route delete default
- Run the following command to configure a new default route:
ip route add 0.0.0.0/0 dev eth1 via 192.168.2.1
In the preceding command, 192.168.2.1 is the gateway IP address of standby NIC eth1.