Your Client VPN administrator creates and configures a Client VPN endpoint in AWS. With Client VPN, you can access your resources from any location using an OpenVPN-based VPN client. Client VPNīased on OpenVPN technology, Client VPN is a managed client-based VPN service that lets you securely access your AWS resources and resources in your on-premises network. In addition, when you connect your VPCs to a common on-premises network, it’s recommend that you use nonoverlapping CIDR blocks for your networks. Because the Global Accelerator IP space is not announced over a Direct Connect public virtual interface, you cannot use accelerated Site-to-Site VPN with a Direct Connect public virtual interface. For globally distributed applications, the accelerated Site-to-Site VPN option provides a connection to the global AWS backbone through AWS Global Accelerator.Support for AWS Site-to-Site VPN over private Direct Connect is not yet available. AWS Site-to-Site VPN endpoints use public IPv4 addresses and therefore require a public virtual interface to transport traffic over Direct Connect.Note, BFD is not yet supported on AWS Site-to-Site VPN, though it is supported on Direct Connect. MED is used to identify the primary tunnel for Site-to-Site VPN conncetions that use BGP. ECMP is only supported for Site-to-Site VPN connections activated on an AWS Transit Gateway. AWS Site-to-Site VPN terminating on AWS Transit Gateway supports equal-cost multi-path routing (ECMP) and multi-exit discriminator (MED) across tunnels in the same and different connection.Maximum packets per second (PPS) per VPN tunnel is 140,000.Each flow (for example, TCP stream) will still be limited to a maximum of 1.25 Gbps, with a real-life value of about 1 Gbps. However, real-life throughput will be 2 Gbps. When terminating on AWS Transit Gateway, both tunnels in the pair can be active and carry an aggregate maximum of 2.5 Gbps. However, real-life throughput will be about 1 Gbps. When terminating on a virtual private gateway, only one tunnel out of the pair can be active and carry a maximum of 1.25 Gbps. Throughput of AWS Site-to-Site VPN connections is limited.The greatest Maximum Transmission Unit (MTU) available on the inside tunnel interface is 1,399 bytes. AWS Site-to-Site VPN does not support Path MTU Discovery.IPv6 for outer tunnel connection not supported. AWS Site-to-Site VPN supports IPv4/IPv6-Dualstack through separate tunnels for inner traffic. You use a transit gateway or virtual private gateway as the gateway for the Amazon side of the AWS Site-to-Site VPN connection. You use a virtual private gateway or a transit gateway as the gateway for the Amazon side of the AWS Site-to-Site VPN connection.Ī transit gateway is a transit hub that can be used to interconnect your VPCs and on-premises networks. The resource contains information about the type of routing used by the Site-to-Site VPN, BGP, ASN and other optional configuration information.Ī customer gateway device is a physical device or software application on your side of the AWS Site-to-Site VPN connection.Ī virtual private gateway is the VPN concentrator on the Amazon side of the AWS Site-to-Site VPN connection. AWS Site-to-Site VPN componentsĪ resource you create and configure in AWS that represents your on-premise gateway device. Each tunnel terminates in a different Availability Zone on the AWS side, but it must terminate on the same customer gateway on the customer side. One AWS Site-to-Site VPN connection consists of two tunnels.
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