On Wed, Aug 27, 2014 at 09:58:25AM +0000, ??????(???? ????) wrote: > By compare the GRE packet sending from traditional router and > the one sending from openvswitch GRE tunnel, we can find out > that traditional GRE packet contains no lay-2 frame > header(ether source and dest MAC, that??s IP over IP), however, > openvswitch??s GRE packet contains the entire frame including > layer-2(that??s MAC over IP).
"GRE" can basically encapsulate anything in anything. That's what makes it "generic". Open vSwitch currently supports only GRE tunnels that encapsulate Ethernet. Therefore, if the device that you're trying to talk to does not support GRE tunnels that encapsulate Ethernet, it will not work. _______________________________________________ discuss mailing list [email protected] http://openvswitch.org/mailman/listinfo/discuss
