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List:       openvswitch-discuss
Subject:    [ovs-discuss] What ports are to be opened on NAT to allow gre tunneling?
From:       blp () nicira ! com (Ben Pfaff)
Date:       2014-05-30 15:15:48
Message-ID: 20140530151548.GA28182 () nicira ! com
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GRE runs over L3 (IP), not L4 (TCP/UDP/...), so there is no port to
open for it.  Make sure your firewall passes GRE traffic.  (I don't know
specifically how to configure that.)

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