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configuration:gre [2016/08/15 08:36]
dotoli
configuration:gre [2020/06/04 07:58] (current)
dodenhoeft
Line 1: Line 1:
-Two NB1600 connected through a GRE tunnel over the mobile interface.+====== ​GRE Tunnel ======
  
 +The Generic routing encapsulation (GRE) is a communication protocol used to establish a direct, point-to-point connection between network nodes. Being a simple and effective method of transporting data over a public network, such as the Internet, GRE lets two peers share data they wouldn’t be able to share over the public network itself.
  
-TUN mode:\\ 
-{{:​configuration:​gre_tun_a.jpg?​nolink&​800 |}}\\ 
  
 +Two NB1600 connected through a GRE tunnel over the mobile interface.\\
 +NB1: 192.168.1.0|192.168.2.0\\
 +NB2: 192.168.3.0|192.168.4.0\\
 +Both have public IP adresses, 138.188.X.X\\
  
 +
 +**TUN mode:**\\
 +
 +{{:​configuration:​gre_tun_a.jpg?​|}}\\
 + 
 Peer address: Public IP address of the remote station (NB1600-X, cisco router ...)\\ Peer address: Public IP address of the remote station (NB1600-X, cisco router ...)\\
-Local tunnel address/​netmask:​ Self defined GRE IP address\\+Local tunnel address/​netmask:​ Self defined GRE IP address ​(remote router local tunnel address: 192.168.8.2)\\
 Remote network: Destination network / Network of the remote router\\ Remote network: Destination network / Network of the remote router\\
  
  
 +**TAP mode:**\\
 +
 +{{:​configuration:​gre_tap.png?​|}}\\
 + 
 +Peer address: Public IP address of the remote station (NB1600-X, cisco router ...)\\
 +Bridge interface: LANX; the IP address on both sides must be in the same subnet. (e.g local=192.168.1.1 / remote=192.168.1.2) ​