Multicast traffic forwarding – GRE tunnels can be used to forward multicast traffic, whereas a VPN cannot. Because of this, multicast traffic such as advertisements sent by routing protocols can be easily transferred between remote sites when using a GRE tunnel.
Configuring the GRE tunnel. The GRE tunnel runs between the virtual IPsec public interface on the FortiGate unit and the Cisco router. You must use the CLI to configure a GRE tunnel. In the example, you would enter: config system gre-tunnel edit gre1 set interface tocisco set local-gw 172.20.120.141 set remote-gw 192.168.5.113. end GRE Tunnels for Layer 3 VPNs - TechLibrary - Juniper Networks Configuring a GRE Tunnel Interface Between PE Routers, Configuring a GRE Tunnel Interface Between a PE and CE Router Site-to-Site VPN tunnel options for your Site-to-Site VPN You use a Site-to-Site VPN connection to connect your remote network to a VPC. Each Site-to-Site VPN connection has two tunnels, with each tunnel using a unique virtual private gateway public IP address. It is important to configure both tunnels for redundancy. When one tunnel becomes unavailable (for example, down for maintenance), network traffic is automatically routed to the available GRE over IPSec VPN Tunnel –VPN Failover — Zyxel Jul 04, 2019
EdgeRouter - GRE Tunnel – Ubiquiti Networks Support and
Configuring a GRE Tunnel Interface Between PE Routers, Configuring a GRE Tunnel Interface Between a PE and CE Router Site-to-Site VPN tunnel options for your Site-to-Site VPN You use a Site-to-Site VPN connection to connect your remote network to a VPC. Each Site-to-Site VPN connection has two tunnels, with each tunnel using a unique virtual private gateway public IP address. It is important to configure both tunnels for redundancy. When one tunnel becomes unavailable (for example, down for maintenance), network traffic is automatically routed to the available GRE over IPSec VPN Tunnel –VPN Failover — Zyxel
Jan 11, 2015 · Configure a GRE VPN tunnel in Packet Tracer 6.1. This tutorial is designed to help prepare you for the Cisco CCNA certification exam.
Nov 18, 2015 · GRE Tunnel Configuration. A GRE tunnel is established on a router level and differs depending on the hardware type or service you use. Typically you’ll be required to set up the tunnel interface IPs and provide public IP addresses for both ends of the GRE tunnel. Here is an example of a tunnel set up between two Cisco routers: