Monday 11 April 2016 06.53 EDT Last modified on Tuesday 31 January 2017 10.58 EST. House of Cards star Kevin Spacey has said turning on the news makes him think the political thriller âdoesnât go far enoughâ in reflecting the real-life race for the White House.
For site-to-site virtual private networks (VPNs), the encapsulating protocol is usually IPSec or Generic Routing Encapsulation (GRE). GRE includes information on what type of packet you are encapsulating and information about the connection between the client and server.
In essence, GRE creates a private point-to-point connection like that of a virtual private network (VPN). GRE works by encapsulating a payload -- that is, an inner packet that needs to be delivered to a destination network -- inside an outer IP packet. GRE tunnel endpoints send payloads through GRE tunnels by routing encapsulated packets through intervening IP networks.