AWS Direct Connect
User Guide

Adding or Deleting a BGP Peer

In some locations, a virtual interface can support up to two IPv4 BGP peering sessions and up to two IPv6 BGP peering sessions. In other locations, a virtual interface can support a single IPv4 BGP peering session and a single IPv6 BGP peering session. For information about the Regions that support logical redundancy, see AWS Direct Connect Locations.

You cannot specify your own peer IPv6 addresses for an IPv6 BGP peering session. Amazon automatically allocates you a /125 IPv6 CIDR.

Multiprotocol BGP is not supported. IPv4 and IPv6 operate in dual-stack mode for the virtual interface.

Adding a BGP Peer

Use the following procedure to add a BGP peer.

To add a BGP peer

  1. Open the AWS Direct Connect console at https://console.aws.amazon.com/directconnect/.

  2. In the navigation pane, choose Virtual Interfaces.

  3. Select the virtual interface and choose Actions, Add Peering.

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

    • To have AWS generate your router IP address and Amazon IP address, select Auto-generate peer IPs.

    • To specify these IP addresses yourself, clear Auto-generate peer IPs. For Your router peer IP, type the destination IPv4 CIDR address to which Amazon should send traffic. In the Amazon router peer IP field, type the IPv4 CIDR address to use to send traffic to AWS.

    
							Add BGP peering for IPv4
  5. (Public virtual interface) To add IPv4 BGP peers, do the following:

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

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

  6. (Private or public virtual interface) To add IPv6 BGP peers, the Auto-generate peer IPs is selected by default. The peer IPv6 addresses are automatically assigned from Amazon's pool of IPv6 addresses; you cannot specify custom IPv6 addresses.

    
							Add BGP peering for IPv6
  7. In the BGP ASN field, type the Border Gateway Protocol (BGP) Autonomous System Number (ASN) of your gateway; for example, a number between 1 and 65534. For a public virtual interface, the ASN must be private or already whitelisted for the virtual interface.

  8. Select Auto-generate BGP key to have AWS to generate one for you.

    To provide your own BGP key, clear Auto-generate BGP key. For BGP Authentication Key, type your BGP MD5 key.

  9. Choose Continue.

To create a BGP peer using the command line or API

Deleting a BGP Peer

If your virtual interface has both an IPv4 and IPv6 BGP peering session, you can delete one of the BGP peering sessions (but not both).

To delete a BGP peer

  1. Open the AWS Direct Connect console at https://console.aws.amazon.com/directconnect/.

  2. In the navigation pane, choose Virtual Interfaces.

  3. Select the virtual interface and choose Actions, Delete Peering.

  4. To delete the IPv4 BGP peer, choose IPv4. To delete the IPv6 BGP peer, choose IPv6.

  5. Choose Delete.

To delete a BGP peer using the command line or API