Create a hosted public virtual interface in Amazon Direct Connect

To create a hosted public virtual interface

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

2. In the navigation pane, choose Virtual Interfaces.

3. Choose Create virtual interface.

4. Under Virtual interface type, for Type, choose Public.

5. Under Public Virtual Interface Settings, do the following:

   1. For Virtual interface name, enter a name for the virtual interface.

   2. For Connection, choose the Direct Connect connection that you want to use for this interface.

   3. For Virtual interface owner, choose Another Amazon account, and then for Virtual interface owner, enter the ID of the account to own this virtual interface.

   4. For VLAN, enter the ID number for your virtual local area network (VLAN).

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

      The valid values are 1-2147483647.

6. To configure an IPv4 BGP or an IPv6 peer, do the following:

   [IPv4] To configure an IPv4 BGP peer, choose IPv4 and do one of the following:

   • 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.

     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.

   [IPv6] To configure an IPv6 BGP peer, choose IPv6. The peer IPv6 addresses are automatically assigned from Amazon's pool of IPv6 addresses. You cannot specify custom IPv6 addresses.

7. To advertise prefixes to Amazon, for Prefixes you want to advertise, enter the IPv4 CIDR destination addresses (separated by commas) to which traffic should be routed over the virtual interface.

8. To provide your own key to authenticate the BGP session, under Additional Settings, for BGP authentication key, enter the key.

   If you do not enter a value, then we generate a BGP key.

9. (Optional) Add or remove a tag.

   [Add a tag] Choose Add tag and do the following:

   • For Key, enter the key name.

   • For Value, enter the key value.

   [Remove a tag] Next to the tag, choose Remove tag.

10. Choose Create virtual interface.

11. After the hosted virtual interface is accepted by the owner of the other Amazon account, you can download the configuration file. For more information, see Download the router configuration file.