Creating Direct Connect Gateway

Last updated: 2021-03-02 15:34:58

    This document describes how to create a direct connect gateway and provides information on the inbound route.

    Prerequisites

    Directions

    1. Log in to the Direct Connect Gateway console.
    2. Select a region and VPC at the top of the Direct Connect Gateway page, and click +New.
    3. Complete the configurations in the pop-up window and click OK.
    Field Description
    Name The name of 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 you create a CCN-based direct connect gateway, you should also add IDC IP ranges to the direct connect gateway to implement network communication. For more information, see Adding IDC IP Ranges to the Direct Connect Gateway.
    • After you create a VPC-based direct connect gateway, you should also configure the VPC’s route table to implement network communication. For more information, see Configuring the Route Table.

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