This topic describes how to bring your public IP address range from your on-premises network to Alibaba Cloud.

Background information

Before you bring your public IP address range from your on-premises network to Alibaba Cloud, note the following limits:
  • You can bring only IP addresses in regions of North America, Asia Pacific, Europe, and Australia to Alibaba Cloud. Regions in mainland China are not supported. The following table lists the regions where you can bring the public IP address range of your on-premises network to Alibaba Cloud.
    Area Region
    North America US (Silicon Valley) and US (Virginia)
    Asia Pacific China (Hong Kong), Singapore (Singapore), Malaysia (Kuala Lumpur), Japan (Tokyo), Indonesia (Jakarta), and India (Mumbai)
    Europe Germany (Frankfurt) and UK (London)
    Australia Australia (Sydney)
  • You can bring only public IPv4 addresses to Alibaba Cloud.
  • The public IP address range must be registered with a Regional Internet Registry (RIR).
  • The minimum prefix length of the IP address range is /23.
  • The waiting time of bringing a public IP address range to the cloud:

    You can bring a public IP address range to Alibaba Cloud after you authorize Alibaba Cloud to advertise the IP address range on the Internet. It may take up to 30 days.

  • The waiting time of withdrawing a public IP address range:

    You can withdraw a public IP address range after you request Alibaba Cloud to stop advertising the IP address range on the Internet. It may take up to 30 days.

  • If you want your public IP address range to use EIP bandwidth plans, note the following limits:
    • The minimum bandwidth of an EIP bandwidth plan is 1,000 Mbit/s. You can add a maximum of 100 elastic IP addresses (EIPs) to each EIP bandwidth plan. If your workload requires bandwidth lower than 1,000 Mbit/s, we recommend that you directly use your public IP address range. Do not add the public IP address range to an EIP bandwidth plan.
    • Before you can add your public IP address range to an EIP bandwidth plan, the system checks where the maximum bandwidth of the plan meets the following requirements. Otherwise, you cannot add your public IP address range to the EIP bandwidth plan.
      • If a total of 1,000 public IP addresses are advertised to the Internet by Alibaba Cloud, the maximum bandwidth of the pay-by-bandwidth plan must be at least 1,000 Mbit/s. For every 1,000 additional pubic IP addresses, you must increase the maximum bandwidth by 1,000 Mbit/s.
      • If a total of 1,000 public IP addresses are advertised to the Internet by Alibaba Cloud, the maximum bandwidth of the pay-by-95th-percentile plan must be at least 1,000 Mbit/s. For every 1,000 additional pubic IP addresses, you must increase the maximum bandwidth by 1,000 Mbit/s.

Step 1: Update the routing information

You must go to the corresponding Regional Internet Registry (RIR) platform to update the routing information of the public IP address range by changing the autonomous system number (ASN) of the IP address to AS45102.

The following example shows how to modify the ASN of an IP address range registered with Network Coordination Center (RIPE NCC).

  1. Log on to RIPE NCC Webupdates.
  2. Select route from the Object type drop-down list and click Create.
    Select route
  3. On the Create "route" object page, select a role and maintainer pair from the drop-down list.
  4. In the Password authentication field, enter the password and click Submit.
  5. Configure the route reflector (RR) based on the following information, and then click Submit.
    Parameter Description
    route Enter the public IP address range.
    origin Enter the ASN. AS45102 is used in this example.
    After you configure the route reflector, you can go to RADB to check whether the configuration takes effect. Verify the registration

Step 2: Apply for bringing the public IP address range to Alibaba Cloud

After you update the routing information, you must submit a ticket to apply for bringing the public IP address range to Alibaba Cloud. Make sure that the following information is included in the ticket:
  • The public IP address range.
  • The region where the public IP address range is to be used.
  • The updated routing information of the IP address range.

Step 3: Apply for an elastic IP address (EIP)

After you complete the preceding task, Alibaba Cloud will advertise the public IP address range from the specified region, and assign you a dedicated Service Provider Identification Number (SPIN). You will receive the SPIN within 20 business days. After you obtain the SPIN, you can go to the buy page to apply for an EIP. For more information, see Create a new EIP.

Step 4: Associate the EIP with a cloud resource

After you apply for an EIP, you can associate the EIP with an Alibaba Cloud resource, such as an Elastic Compute Service (ECS) instance, NAT gateway, internal Server Load Balancer (SLB) instance, or elastic network interface (ENI). For more information, see the following topics: