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| + | ==GRE Tunnel== |
| + | |
| + | '''GRE''' (Generic Routing Encapsulation RFC2784) is a solution for tunneling RFC1812 private address-space traffic over an intermediate TCP/IP network such as the Internet. GRE tunneling does not use encryption it simply encapsulates data and sends it over the WAN. |
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| + | |
| + | [[Image:Services vpn gre tunnel scheme.PNG]] |
| + | |
| + | In the example network diagram two distant networks LAN1 and LAN2 are connected. |
| + | To create GRE tunnel the user must know the following parameters: |
| + | 1. Source and destination IP addresses |
| + | 2. Tunnel’s local IP address |
| + | 3. Distant network’s IP address and Subnet mask |
| + | To create a new GRE instance, go to the GRE Tunnel tab, type in a name for your new instance in the text field below the GRE Tunnel tab and press the '''Add New''' button next to it. |