Digi Connect EZ 4 User Manual page 443

Virtual Private Networks (VPN)
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 EZ-1, 172.30.0.1.
4. Create an interface named gre_interface2 and add it to the GRE tunnel:
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 EZ-1 device
Task one: Create an IPsec tunnel

WebUI
1. Log into the Connect EZ 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 EZ-2 device.
9. Click to expand Policies.
Digi Connect EZ 4/4i User Guide
Generic Routing Encapsulation (GRE)
443