- Release Notes and Announcements
- Product Introduction
- Purchase Guide
- Getting Started
- Operation Guide
- Cloud Access Management
- Best Practices
- API Documentation
- History
- Introduction
- API Category
- Making API Requests
- Direct Connect APIs
- RejectDirectConnectTunnel
- ModifyDirectConnectTunnelAttribute
- DescribeDirectConnectTunnels
- DeleteDirectConnectTunnel
- CreateDirectConnectTunnel
- AcceptDirectConnectTunnel
- ModifyDirectConnectAttribute
- DescribeDirectConnects
- DescribeAccessPoints
- Deletes a connection
- Applies for a connection
- ReleaseInternetAddress
- EnableInternetAddress
- DisableInternetAddress
- DescribeInternetAddressStatistics
- DescribeInternetAddressQuota
- DescribeInternetAddress
- ApplyInternetAddress
- Data Types
- Error Codes
- FAQ
- Troubleshooting
- Agreements
- Contact Us
- Glossary
- Release Notes and Announcements
- Product Introduction
- Purchase Guide
- Getting Started
- Operation Guide
- Cloud Access Management
- Best Practices
- API Documentation
- History
- Introduction
- API Category
- Making API Requests
- Direct Connect APIs
- RejectDirectConnectTunnel
- ModifyDirectConnectTunnelAttribute
- DescribeDirectConnectTunnels
- DeleteDirectConnectTunnel
- CreateDirectConnectTunnel
- AcceptDirectConnectTunnel
- ModifyDirectConnectAttribute
- DescribeDirectConnects
- DescribeAccessPoints
- Deletes a connection
- Applies for a connection
- ReleaseInternetAddress
- EnableInternetAddress
- DisableInternetAddress
- DescribeInternetAddressStatistics
- DescribeInternetAddressQuota
- DescribeInternetAddress
- ApplyInternetAddress
- Data Types
- Error Codes
- FAQ
- Troubleshooting
- Agreements
- Contact Us
- Glossary
This document describes how to create a direct connect gateway and provides information on the inbound route.
Prerequisites
- You have applied for a connection as instructed in Applying for Connection.
- You have built a VPC as instructed in Building Up an IPv4 VPC.
Use Limits
A standard direct connect gateway supports propagating secondary CIDR blocks. Note the following limits:
- This feature is unavailable in the Finance Cloud regions.
- Up to 10 secondary CIDR blocks can be propagated.
- This feature is unavailable to a NAT direct connect gateway.
Directions
- Log in to the Direct Connect Gateway console.
- Select a region and VPC at the top of the Direct Connect Gateway page, and click +New.
- Complete the configurations in the pop-up window and click OK.
Field Configuration Name Enter a name for the direct connect gateway. Associate Network Select either CCN or VPC. CCN instance A CCN instance is needed if CCN is selected for the Associate Network. This field can also be left empty. Network A VPC instance is needed if VPC is selected for the Associate Network. Gateway Type A gateway is needed if VPC is selected for the Associate Network. - Standard: does not support the network address translation feature.
- NAT Type: supports the network address translation feature.
Inbound Routes
As shown in the Direct Connect network architecture, both the creation time of the direct connect gateway and dedicated tunnel mode will affect the destination of the inbound route (from your IDC to a Tencent Cloud VPC). For more information, please see Direct Connect Gateway Overview.
| Gateway Type | Creation Time | Dedicated Tunnel Mode | IDC Routes to Tencent Cloud |
| VPC-based direct connect gateway | No limit | Static | The inbound routing policy is configured in the local router. |
| BGP | The IDC automatically obtains the VPC CIDR block based on the BGP protocol. | ||
| CCN-based direct connect gateway | Before 00:00:00 on September 15, 2020 | Static | The inbound routing policy is configured in the local router. |
| BGP | The IDC automatically obtains the subnet CIDR block based on the BGP protocol. | ||
| After 00:00:00 on September 15, 2020 | Static | The inbound routing policy is configured in the local router. | |
| BGP | The IDC automatically obtains the VPC CIDR block based on the BGP protocol. |
Subsequent Operations
- After creating a CCN-based direct connect gateway, you need to add IDC IP ranges to the direct connect gateway to implement network communication. For more information, see Publishing IDC IP Ranges to CCN.
- After creating a VPC-based direct connect gateway, you need to configure the VPC route table to implement network communication. For more information, see Configuring the Route Table.
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