2004年10月18日 · IP security (IPsec) virtual tunnel interfaces (VTIs) provide a routable interface type for terminating IPsec tunnels and an easy way to define protection between sites to form an overlay network. IPsec VTIs simplify configuration of IPsec for protection of remote links, support multicast, and simplify network management and load balancing.

An IPsec Virtual Tunnel Interface (VTI) is a routable virtual interface type for terminating IPsec tunnels, and it provides a simple way to establish security between sites to create an overlay network.

Quick Googling indicates (1,2) that the idea of VTI is to use virtual interfaces to de-attach the routing from the VPN tunnel. Specifically, IPsec configuration typically requires you to specify the IP networks that you want the IPsec engine to handle.

As an alternative to policy based VPN, a VPN tunnel can be created between peers with Virtual Tunnel Interfaces configured. This supports route based VPN with IPsec profiles attached to the end of each tunnel. This allows dynamic or static routes to be used.

This article shows how to configure an IPSec site-to-site VPN (with USG series) using VTI (Virtual Tunnel Interface). The following instructs how to configure the VPN tunnel between each site. When the VPN tunnel is configured, each site can be accessed securely

In this lesson, you will learn how to configure DVTIs (Dynamic Virtual Tunnel Interface) on a hub router and static VTI on spoke routers.

The following are steps and guidelines necessary for configuring a virtual tunnel interface (VTI), or route-based VPN, between Cradlepoint routers. Technical Terms VTI provides a routable-interface type for terminating IPsec tunnels and an easy way to define protection between sites to form an overlay network. The mode...

Configuring a Tunnel Mode IPsec VPN; Configuring Failover and Failback for Tunnel Mode IPSec VPNs; Virtual Tunnel Interface (VTI) IPSec; Overview of VTI IPsec VPN; Benefits of VTI; Network Topology; Configuring a VTI Tunnel; Defining the VTI Zone; Create Zone Forwarding; Verifying Connectivity; Configuring 1:1 NAT Over a VTI IPSec VPN ...

2022年11月12日 · Route-based VPN is an alternative to policy-based VPN where a VPN tunnel can be created between peers with Virtual Tunnel Interfaces. Route-based VTI VPN allows dynamic or static routes to be used where egressing traffic from the VTI is encrypted and sent to the peer, and the associated peer decrypts the ingress traffic to the VTI.

2005年12月6日 · VTI is an interface that supports native IPsec tunneling, and allows you to apply interface commands directly to the IPsec tunnels. The configuration of this tunnel interface is similar to a GRE tunnel interface and is well understood. VTI has most of the properties of a physical interface.