هذه الصفحة غير متوفرة حاليًا بلغتك المحلية. نحن نعمل جاهدين على إضافة المزيد من اللغات. شاكرين تفهمك ودعمك المستمر لنا.
- What's New
- Function Overview
- Service Overview
- Billing
- Getting Started
-
User Guide
- Permissions Management
- Elastic IP
- EIP Billing
- EIP Pool
- Shared Bandwidth
- Shared Data Package
- Global EIPs
- Global Internet Gateways
- Global Internet Bandwidths
- Global Connection Bandwidths
- Cloud Eye Monitoring
- Best Practices
-
API Reference
- Before You Start
- API Overview
- Calling APIs
- APIs
- API V3
- Native OpenStack Neutron APIs V2.0
- Application Examples
- Permissions Policies and Supported Actions
- Appendix
- SDK Reference
-
FAQs
-
Product Consultation
- Managing Quotas
- How Do I Assign or Retrieve a Specific EIP?
- Why Is an EIP Newly Assigned the Same as the One I Released?
- Can I Buy a Specific EIP?
- Does an EIP Change Over Time?
- Why Can't I Find My Purchased EIP on the Management Console?
- What Is the EIP Assignment Policy?
- Can an EIP Be Used or Migrated Across Accounts?
- How Do I Query the Traffic Usage of My EIP?
- Do I Need to Configure a Shared Data Package for Use After It Is Purchased?
- Can I Change the Dedicated Bandwidth Used by an EIP to a Shared Bandwidth?
- How Many ECSs Can I Bind an EIP To?
- What Are the Differences Between EIP, Private IP Address, and Virtual IP Address?
- What Are the Differences Among a Bandwidth Add-On Package, Shared Data Package, and Shared Bandwidth?
- When Should I Use Premium BGP and Are There Any Limitations on Using Premium BGP?
- Why My EIPs Are Frozen? How Do I Unfreeze My EIPs?
-
Billing and Payments
- How Is an EIP Billed?
- How Do I Change My EIP Billing Mode Between Pay-per-Use and Yearly/Monthly?
- How Do I Change the Billing Option of a Pay-per-Use EIP Between By Bandwidth and By Traffic?
- Why Am I Still Being Billed After My EIP Has Been Unbound or Released?
- When Will I Be Billed for Reservation Price?
-
EIP Binding and Unbinding
- How Do I Access an ECS with an EIP Bound from the Internet?
- How Can I Unbind an Existing EIP from an Instance and Bind Another EIP to the Instance?
- Can I Bind an EIP of an ECS to Another ECS?
- Can I Bind an EIP to a Cloud Resource in Another Region?
- Can Multiple EIPs Be Bound to an ECS?
- What Are the Differences Between Unbinding and Releasing an EIP?
-
Bandwidth
- How Do I Increase a Bandwidth to Be More Than 300 Mbit/s?
- What Bandwidth Types Are Available?
- How Many EIPs Can I Add to Each Shared Bandwidth?
- What Are the Differences Between a Dedicated Bandwidth and a Shared Bandwidth?
- What Are Inbound Bandwidth and Outbound Bandwidth?
- How Do I Know If My EIP Bandwidth Has Been Exceeded?
- What Are the Differences Between Public Bandwidth and Private Bandwidth?
- Can I Increase a Yearly/Monthly Bandwidth and Decrease It Later?
- What Is the Relationship Between Bandwidth and Upload/Download Rate?
- What Are the Differences Among Static BGP, Dynamic BGP, and Premium BGP?
-
Connectivity
- What Are the Priorities of the Custom Route and EIP If Both Are Configured for an ECS to Enable the ECS to Access the Internet?
- Why Can't My ECS Access the Internet Even After an EIP Is Bound?
- What Should I Do If an EIP Cannot Be Pinged?
- How Do I Unblock an EIP?
- Why Is There Network Jitter or Packet Loss During Cross-Border Communications?
- Why Does the Download Speed of My ECS Is Slow?
-
Product Consultation
- Videos
- Glossary
-
More Documents
-
User Guide (ME-Abu Dhabi Region)
- Service Overview
- Quick Start
-
Elastic IP
- EIP Overview
- Assigning an EIP and Binding It to an ECS
- Assigning an EIP
- Binding an EIP to an Instance
- Unbinding an EIP from an Instance
- Releasing an EIP
- Changing Dedicated Bandwidth Size of an EIP
- Unbinding an EIP from an ECS and Releasing the EIP
- Modifying an EIP Bandwidth
- Exporting EIP Information
- Managing EIP Tags
- Shared Bandwidth
- Monitoring
-
FAQs
-
Product Consultation
- What Is a Quota?
- How Do I Assign or Retrieve a Specific EIP?
- Why Is an EIP Newly Assigned the Same as the One I Released?
- What Are the Differences Between EIP, Private IP Address, and Virtual IP Address?
- Can an EIP That Uses Dedicated Bandwidth Be Changed to Use Shared Bandwidth?
- Can I Bind an EIP to Multiple ECSs?
- What Are the Differences Between the Primary and Extension NICs of ECSs?
- What Is the EIP Assignment Policy?
- Can I Assign a Specific EIP?
- Can a Bandwidth Be Used by Multiple Accounts?
- How Do I Unbind an EIP from an Instance and Bind a New EIP to the Instance?
- Why Can't I Find My Assigned EIP on the Management Console?
- EIP Binding and Unbinding
-
Bandwidth
- What Is the Bandwidth Size Range?
- How Do I Increase a Bandwidth to Be More Than 300 Mbit/s?
- What Bandwidth Types Are Available?
- Is There a Limit to the Number of EIPs That Can Be Added to Each Shared Bandwidth?
- What Are the Differences Between a Dedicated Bandwidth and a Shared Bandwidth?
- What Are Inbound Bandwidth and Outbound Bandwidth?
- How Do I Know If My EIP Bandwidth Limit Has Been Exceeded?
- What Are the Differences Between Public Bandwidth and Private Bandwidth?
- What Is the Relationship Between Bandwidth and Upload/Download Rate?
- Connectivity
-
Product Consultation
- Change History
- API Reference (ME-Abu Dhabi Region)
-
User Guide (Kuala Lumpur Region)
- Service Overview
- Quick Start
- EIP
- Shared Bandwidth
- Monitoring
-
FAQs
- Product Consultation
- EIP Binding and Unbinding
-
Bandwidth
- What Is the Bandwidth Size Range?
- What Bandwidth Types Are Available?
- Is There a Limit to the Number of EIPs That Can Be Added to Each Shared Bandwidth?
- What Are the Differences Between a Dedicated Bandwidth and a Shared Bandwidth? Can a Dedicated Bandwidth Be Changed to a Shared Bandwidth or the Other Way Around?
- Connectivity
- Change History
- API Reference (Kuala Lumpur Region)
- User Guide (Ankara Region)
- API Reference (Ankara Region)
-
User Guide (ME-Abu Dhabi Region)
- General Reference
Copied.
On-premises Data Centers Providing Internet-Accessible Services Using IPv6 EIPs
Application Scenarios
You can use the IPv6 function of the EIP service to map existing IPv4 EIPs into IPv6 EIPs. After the IPv6 EIP function is enabled, you will obtain both an IPv4 EIP and its corresponding IPv6 EIP. External IPv6 addresses can access cloud resources through this IPv6 EIP.
If existing services in an on-premises data center (IDC) cannot be migrated to the cloud because they use IPv4 addresses and also the IPv4/IPv6 dual-stack reconstruction cannot be completed for these services in a short period, IPv6 EIPs can be used to connect to the on-premises data center. Then, the data center can provide internet-accessible services using IPv6 EIPs without the need to reconstruct the existing IPv4 network.
Architecture
- A virtual private network (VPN) connects an on-premises data center to a VPC.
- A NAT gateway in the VPC uses an IPv6 EIP to provide internet-accessible services.
- IPv6 EIP can only be used to provide internet-accessible services and cannot access IPv6 addresses.
- The CIDR block of an on-premises data center cannot overlap with the CIDR block of the VPC subnet. Otherwise, the communication between them will fail.

Advantages
On-premises data centers can provide internet-accessible services using IPv6 EIPs without the need to reconstruct their existing IPv4 networks, meeting different requirements of IPv4 and IPv6 users.
Notes and Constraints
After IPv6 EIP is enabled, inbound and outbound security group rules need to be added to allow packets to and from the IP address range 198.19.0.0/16. IPv6 EIP uses NAT64 to convert the source IPv6 address in the inbound direction to an IPv4 address in the IP address range 198.19.0.0/16. The source port can be a random one, the destination IP address is the private IPv4 address of your local server, and the destination port remains unchanged.
Direction |
Protocol |
Source and Destination |
---|---|---|
Inbound |
All |
Source: 198.19.0.0/16 |
Outbound |
All |
Destination: 198.19.0.0/16 |
Resource Planning
Resource |
Resource Name |
Description |
Quantity |
---|---|---|---|
VPC |
VPC-Test01 |
This VPC (192.168.0.0/24) will have an EIP and a NAT gateway deployed. |
1 |
EIP |
EIP-IPv4&IPv6 |
When you create this IPv4 EIP, enable the IPv6 EIP function. |
1 |
NAT gateway |
NAT-Test |
This public NAT gateway will have an EIP bound. |
1 |
VPN gateway |
VPN-GW-Test |
This VPN gateway is an egress gateway in a VPC and allows reliable and encrypted communications between a VPC and an on-premises data center. |
1 |
VPN connection |
VPN-Test |
This VPN connection quickly builds a reliable and encrypted communications channel between a VPN gateway and a remote gateway. |
1 |
On-premises data center |
IDC-Test |
This on-premises data center (192.168.1.0/24) includes remote gateways, routers, and backend servers. |
1 |
Procedure
- Buy an EIP and enable the IPv6 EIP function.
Buy an EIP with the required bandwidth and select the IPv6 EIP option.
For details, see Assigning an EIP.
- Configure a VPN.
A VPN consists of a VPN gateway and one or more VPN connections. A VPN gateway provides an internet egress for a VPC and works together with the gateway in the on-premises data center.
- Create a VPC.
Set the VPC CIDR block to 192.168.0.0/24. The CIDR block of the on-premises data center is 192.168.1.0/24.
The CIDR block of an on-premises data center cannot overlap with the CIDR block of the VPC subnet. Otherwise, the communication between them will fail.
For details, see Creating a VPC.
- Create a VPN gateway.
VPC: Select the VPC created in 2.a.
Bandwidth: Select the bandwidth based on your service requirements.
For details, see Creating a VPN Gateway.
- Create a VPN connection.
Local Subnet: Select subnets or manually enter CIDR blocks, for example, 192.168.0.0/24,198.19.0.0/16.
Remote Gateway: Set it to public IP address of the gateway in the data center.
Remote Subnet: Set it to the CIDR block 192.168.1.0/24 of the data center.
For details, see Creating a VPN Connection.
NOTE:
After the IPv6 EIP function is enabled, the source IP address will be translated into one in the IP address range 198.19.0.0/16. Therefore, you need to enter the VPC subnet and then the IP address range 198.19.0.0/16 in sequence in the Local Subnet area.
- Configure the VPN device in the data center.
After configuring the VPN on the cloud, you need to configure the VPN device in the data center. For details, see Virtual Private Network Administrator Guide.
- Create a VPC.
- Configure a public NAT gateway.
After purchasing a public NAT gateway, you can add DNAT rules to enable your servers in the VPC or servers in your data center that are connected to the VPC to provide internet-accessible services.
- Buy a public NAT gateway.
VPC: Select the VPC created in 2.a.
Subnet: Select a subnet in the VPC created in 2.a.
For details, see Buying a Public NAT Gateway.
- Add a DNAT rule.
Select the EIP purchased in 1 and add a DNAT rule based on the private IP address and port of the data center. For example, you can set Port Type to Specific port, Protocol to TCP, Private IP Address to 192.168.1.22, and select the EIP to be associated.
For details, see Adding a DNAT Rule.
- Buy a public NAT gateway.
Verification
After the preceding operations are complete, the IPv6 EIPs can be used to provide internet-accessible services.
You can query the IPv6 addresses on the EIPs page.

Use an IPv6 client that can access the internet to test the connectivity of the IPv6 EIP.
Feedback
Was this page helpful?
Provide feedbackThank you very much for your feedback. We will continue working to improve the documentation.See the reply and handling status in My Cloud VOC.
For any further questions, feel free to contact us through the chatbot.
Chatbot