D-Link DFL-800-AV-12 User Manual - Page 65
Setup for D-Link Firewall, 3.5. GRE Tunnels
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3.3.5. GRE Tunnels Chapter 3. Fundamentals Setup for D-Link Firewall "A" Assuming that the network 192.168.10.0/24 is lannet on the lan interface, the steps for setting up NetDefendOS on A are: 1. In the address book set up the following IP objects: • remote_net_B: 192.168.11.0/24 • remote_gw: 172.16.1.1 • ip_GRE: 192.168.0.1 2. Create a GRE Tunnel object called GRE_to_B with the following parameters: • IP Address: ip_GRE • Remote Network: remote_net_B • Remote Endpoint: remote_gw • Use Session Key: 1 • Additional Encapulation Checksum: Enabled 3. Define a route in the main routing table which routes all traffic to remote_net_B on the GRE_to_B GRE interface. This is not necessary if the option Add route for remote network is enabled in the Advanced tab, since this will add the route automatically. 4. Create the following rules in the IP rule set that allow traffic to pass through the tunnel: Name To_B From_B Action Allow Allow Src Interface lan GRE_to_B Src Network Dest Interface Dest Network Service lannet GRE_to_B remote_net_B All remote_net_B lan lannet All Setup for D-Link Firewall "B" Assuming that the network 192.168.11.0/24 is lannet on the lan interface, the steps for setting up NetDefendOS on B are as follows: 65