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This video summarizes scenarios for VPN gateways. These scenarios include on-premises and point-to-site connections.
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Azure [VPN Gateway](/azure/vpn-gateway/vpn-gateway-about-vpngateways) is a service that can be used to send encrypted traffic between an Azure virtual network and on-premises locations over the public Internet. You can also use VPN Gateway to send encrypted traffic between Azure virtual networks over the Microsoft network. VPN Gateway uses a specific type of Azure virtual network gateway called a VPN gateway. Multiple connections can be created to the same VPN gateway. When you create multiple connections, all VPN tunnels share the available gateway bandwidth.
Azure [VPN Gateway](/azure/vpn-gateway/vpn-gateway-about-vpngateways) is a service that can be used to send encrypted traffic between an Azure virtual network and on-premises locations over the public Internet. You can also use VPN Gateway to send encrypted traffic between Azure virtual networks over the Microsoft network. VPN Gateway uses a specific type of Azure virtual network gateway called a VPN gateway. Multiple connections can be created to the same VPN gateway. When you create multiple connections, all VPN tunnels share the available gateway bandwidth.
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> [!NOTE]
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> A virtual network gateway is composed of two or more special virtual machines that are deployed to a specific subnet called the gateway subnet. Azure manages the virtual machines so they don't require administrative attention.
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## High availability options for VPN connections
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To provide better availability for your VPN connections, consider one of these options.
You can create an Azure VPN gateway in an active-standby configuration. Active-standby is the default configuration. In this configuration there are two instances, active and standby. The standby connection takes over when the active connection is disrupted. Switching to the standby connection causes a service disruption.
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You can create an Azure VPN gateway in an active-active configuration. In the active-active configuration, both instances of the gateway establish VPN tunnels to your on-premises VPN device. The traffic from your Azure virtual network to your on-premises network is routed through both tunnels simultaneously. If an outage occurs, Azure automatically switches to the other tunnel.
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:::image type="content" source="../media/vpn-active-active-89241ba7.png" alt-text="Diagram of an Azure VPN Gateway in active-active configuration.":::
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### Gateway redundancy comparison (video)
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This video reviews VPN gateway redundancy options.
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