Add a BGP peer to an Amazon Direct Connect virtual interface

To add a BGP peer

1. Open the Amazon Direct Connect console at https://console.amazonaws.cn/directconnect/v2/home.

2. In the navigation pane, choose Virtual Interfaces.

3. Select the virtual interface and then choose View details.

4. Choose Add peering.

5. (Private virtual interface) To add IPv4 BGP peers, do the following:

   • Choose IPv4.

   • To specify these IP addresses yourself, for Your router peer ip, enter the destination IPv4 CIDR address to which Amazon should send traffic. For Amazon router peer ip, enter the IPv4 CIDR address to use to send traffic to Amazon.

6. (Public virtual interface) To add IPv4 BGP peers, do the following:

   • For Your router peer ip, enter the IPv4 CIDR destination address where traffic should be sent.

   • For Amazon router peer IP, enter the IPv4 CIDR address to use to send traffic to Amazon.

     Important

     If you let Amazon auto-assign IP addresses, a /29 CIDR will be allocated from 169.254.0.0/16. Amazon does not recommend this option if you intend to use the customer router peer IP address as the source and destination for traffic. Instead you should use RFC 1918 or other addressing, and specify the address yourself. For more information about RFC 1918 see Address Allocation for Private Internets.

7. (Private or public virtual interface) To add IPv6 BGP peers, choose IPv6. The peer IPv6 addresses are automatically assigned from Amazon's pool of IPv6 addresses; you cannot specify custom IPv6 addresses.

8. For BGP ASN, enter the Border Gateway Protocol Autonomous System Number of your on-premises peer router for the new virtual interface.

   For a public virtual interface, the ASN must be private or already on the allow list for the virtual interface.

   The valid values are 1-2147483647.

   Note that if you do not enter a value, we automatically assign one.

9. To provide your own BGP key, for BGP Authentication Key, enter your BGP MD5 key.

10. Choose Add peering.