Before configuring DNAT or SNAT entries, you must bind an EIP to a NAT Gateway.


  • If you have purchased a NAT bandwidth package before January 26, 2018, you are not allowed to bind an EIP to NAT Gateway. Open a ticket to use EIP.

  • You have already created an EIP. For more information, see Apply for an EIP address.
  • Use the new VPC console.


  1. Log on to the VPC console.
  2. In the left-side navigation pane, click NAT Gateways.
  3. Select the region of the NAT Gateway.
  4. Click More > Bind Elastic IP Address.
  5. In the displayed dialog box, complete these configurations:
    1. Public IP: Select the EIP to bind.
      Up to 10 EIPs can be bound to a NAT Gateway and the bandwidth of an EIP cannot exceed 200 Mbps. Open a ticket to apply for more quota.
    2. Optional: VSwitches (Optional): An SNAT rule using the selected VSwitch and EIP is automatically added if you select a VSwitch. Then, the ECS instances in the specified VSwitch can access the Internet using the EIP.
  6. Repeat the previous steps to bind more EIPs.