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GRE tunnel wizard showing ip address not configured what may be the reason and why

  • 1.  GRE tunnel wizard showing ip address not configured what may be the reason and why

    Posted Aug 12, 2016 05:29 AM
      |   view attached

    GRE tunnel wizard showing ip address not configured what may be the reason and why?

    Regards, 

    Mallikarjun



  • 2.  RE: GRE tunnel wizard showing ip address not configured what may be the reason and why

    Posted Aug 12, 2016 06:18 AM

    That is because only a layer 3 GRE tunnel requires an ip address.  A layer 2 tunnel does not.



  • 3.  RE: GRE tunnel wizard showing ip address not configured what may be the reason and why

    Posted Aug 12, 2016 06:25 AM

    Then what is that ip address assigned to ,already  we are entered source and destination ip address right? Will you please explain it .

    Regards, 

    Mallikarjun



  • 4.  RE: GRE tunnel wizard showing ip address not configured what may be the reason and why

    Posted Aug 12, 2016 06:53 AM

    If it is a layer 2 tunnel, there is no ip address; it is just basically bridging traffic.  If there is a layer 3 tunnel, typically there is an ip address because there is a route added to point to the subnet represented by the tunnel.