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Download USER MANUAL
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WAN IP: A.A.A.A WAN IP: B.B.B.B Internet Tunnel 10.0.0.1/24 LAN1 192.168.0.0/24 Tunnel 10.0.0.2/24 GRE tunnel LAN1 192.168.1.0/24 LAN2 192.168.1.2 192.168.0.2 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 local IP address 3. Distant network IP address and Subnet mask 1. 2. Field name Enable GRE Tunnel TTL 3. PMTUD 4. Remote tunnel network address Remote CIDR 5. Explanation Check the box to enable the GRE Tunnel function. Specify the fixed time-to-live (TTL) value on tunneled packets [0-255]. The 0 is a special value meaning that packets inherit the TTL value. Check the box to enable the Path Maximum Transmission Unit Discovery (PMTUD) status on this tunnel. Specify remote LAN Subnet address. Specify remote LAN Subnet CIDR value. 52
