Virtual Private Networks (VPN) Generic Routing Encapsulation (GRE)
Digi Connect IT® 16/48 User Guide
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3. Create a GRE tunnel named gre_tunnel2:
a. Local endpoint set to the IPsec endpoint interface, Interface: ipsec_endpoint2.
b. Remote endpoint set to the IP address of the GRE tunnel on Connect IT 16/48-1,
172.30.0.1.
4. Create an interface named gre_interface2 and add it to the GREtunnel:
a. Zone set to Internal.
b. Device set to IP tunnel: gre_tunnel2.
c. IPv4 Address set to a virtual IP address on the GRE tunnel, 172.31.1.1/30.
Configuration procedures
Configure the Connect IT 16/48-1 device
Task one: Create an IPsec tunnel
WebUI
1. Log into the Connect IT 16/48 WebUI as a user with full Admin access rights.
2. On the menu, click System. Under Configuration, click Device Configuration.
The Configuration window is displayed.
3. Click VPN > IPsec > Tunnels.
4. For Add IPsec Tunnel, type ipsec_gre1 and click .
5. Click to expand Authentication.
6. For Pre-shared key, type testkey.
7. Click to expand Remote endpoint.
8. For Hostname, type public IP address of the Connect IT 16/48-2 device.
9. Click to expand Policies.