![]() ![]() ![]() nvgre Network Virtualization using Generic Routing Encapsulation (NVGRE) overlayĮthernet network interfaces. egre Point-to-point Ethernet tunnel interfaces. mgre Point-to-multipoint Layer 3 tunnel interfaces. This pseudo driver provides the clonable network interfaces: gre Point-to-point Layer 3 tunnel interfaces. To carry flow information about the encapsulated traffic to allow better use Header specifies the type of the encapsulated datagram, allowing for theĭifferent tunnels between the same endpoints may be distinguishedīy an optional Key field in the GRE header. GRE datagrams (IP protocol number 47) consist of a GRE header andĪn outer IP header for encapsulating another protocol's datagram. Routing Encapsulation (GRE) encapsulation protocol. The gre pseudo-device provides interfacesįor tunnelling protocols across IPv4 and IPv6 networks using the Generic
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