# Can I Bind Multiple EIPs to an ECS?

#### 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 configurations
Parameter | 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:

1. Log in to the ECS.
2. 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:

1. Log in to the ECS.
2. Run the following command to delete the default route:

   ip route delete default

   Exercise caution when deleting the default route because this operation will interrupt the network and result in SSH login failures.

3. 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.

Parent topic: Network Configurations