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- What's New
- Function Overview
- Service Overview
-
Getting Started
- Allowing a Private Network to Access the Internet Using SNAT
- Allowing Internet Users to Access a Service in a Private Network Using DNAT
- Allowing On-Premises Servers to Communicate with the Internet
- Using Private NAT Gateways to Enable Communications Between Cloud and On-premises Networks
- Using Multiple Public NAT Gateways Together in Performance-Demanding Scenarios
- Change History
-
User Guide
- Public NAT Gateways
- Private NAT Gateways
- Managing NAT Gateway Tags
- Monitoring
- Auditing
- Change History
- Best Practices
-
API Reference
- Before You Start
- API Overview
- Calling APIs
- V2 APIs of Public NAT Gateways
- API v2.0
- Private Nat API
- Permissions Policies and Supported Actions
- Common Parameters
- Change History
-
FAQs
-
Public NAT Gateways
- What Is the Relationship Between a VPC, Public NAT Gateway, EIP Bandwidth, and ECS?
- How Does a Public NAT Gateway Offer High Availability?
- Which Ports Cannot Be Accessed?
- What Are the Differences Between Using a Public NAT Gateway and Using an EIP for an ECS?
- What Should I Do If I Fail to Access the Internet Through a Public NAT Gateway?
- Can I Change the VPC for a Public NAT Gateway?
- Does Public NAT Gateway Support IPv6 Addresses?
- What Security Policies Can I Configure to Implement Access Control If I Use a Public NAT Gateway?
- What Can I Do If Connection Between My Servers and the Internet Fails After I Add SNAT and DNAT Rules?
-
Private NAT Gateways
- How Do I Troubleshoot a Network Failure After a Private NAT Gateway Is Configured?
- How Many Private NAT Gateways Can I Create in a VPC?
- Can I Increase the Numbers of SNAT and DNAT Rules Supported by a Private NAT Gateway?
- Can an SNAT and DNAT Rule of a Private NAT Gateway Share the Same Transit IP Address?
- Can Private NAT Gateways Translate On-premises IP Addresses Connected to the Cloud Through Direct Connect?
- What Are the Differences Between Private NAT Gateways and Public NAT Gateways?
- How Is Private NAT Gateway Billed?
- Can a Private NAT Gateway Be Used Across Accounts?
-
SNAT Rules
- Why Do I Need SNAT?
- What Are SNAT Connections?
- What Is the Bandwidth of a Public NAT Gateway Used by a Server to Access the Internet? How Do I Configure the Bandwidth?
- How Do I Resolve Packet Loss or Connection Failure Issues When Using a NAT Gateway?
- What Should I Do If My ECS Fails to Access a Server on the Public Network Through a Public NAT Gateway?
- What Are the Relationships and Differences Between the CIDR Blocks in a NAT Gateway and in an SNAT Rule?
- DNAT Rules
-
Public NAT Gateways
- SDK Reference
Show all
Step 5: Create Another Public NAT Gateway
Scenarios
Create another public NAT gateway in the service VPC.
Prerequisites
The second route table has been created for the VPC and has been associated with the second subnet of the VPC.
Procedure
- Log in to the management console.
- Click
in the upper left corner and select the desired region and project.
- Click Service List in the upper left corner. Under Networking, select NAT Gateway.
The Public NAT Gateway page is displayed.
- On the displayed page, click Buy Public NAT Gateway.
- Configure required parameters. For details, see Table 1.
Select the VPC and the other subnet you created in Step 1: Create a VPC and Two Subnets for VPC and Subnet.
Table 1 Descriptions of public NAT gateway parameters Parameter
Description
Region
The region where the public NAT gateway is located
Name
The name of the public NAT gateway
Enter up to 64 characters. Only digits, letters, underscores (_), and hyphens (-) are allowed.
VPC
The VPC that the public NAT gateway belongs to
The selected VPC cannot be changed after the public NAT gateway is created.
Subnet
The subnet of the VPC that the public NAT gateway belongs to
The subnet must have at least one available IP address.
The selected subnet cannot be changed after the public NAT gateway is created.
The NAT gateway will be deployed in the selected subnet. The NAT gateway works for the entire VPC where it is deployed. To enable communications over the Internet, add SNAT or DNAT rules.
Specifications
The public NAT gateway specifications
The value can be Small, Medium, Large, or Extra-large. To view more details about specifications, click Learn more on the page.
Enterprise Project
The enterprise project that the public NAT gateway belongs to
If an enterprise project is configured for a public NAT gateway, the public NAT gateway belongs to this enterprise project. If you have not configured any enterprise project, select the default enterprise project.
Description
Supplementary information about the public NAT gateway. Enter up to 255 characters.
Tag
The public NAT gateway tag. A tag is a key-value pair. You can add up to 20 tags to each public NAT gateway.
- Click Create Now. On the page displayed, confirm the public NAT gateway specifications.
- Click Submit to create a public NAT gateway.
It takes 1 to 6 minutes to create a public NAT gateway.
- In the list, view the status of the public NAT gateway.
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