Digi TX40 User Manual page 576

Virtual Private Networks (VPN)
1. Click Network > Interface.
2. For Add Interface, type ipsec_endpoint1 and click .
3. For Zone, select Internal.
4. For Device, select Ethernet: loopback.
5. Click to expand IPv4.
6. For Address, type the IP address of the local GRE tunnel, 172.30.0.1/32.
7. Click Apply to save the configuration and apply the change.

Command line
1. At the command line, type config to enter configuration mode:
> config
(config)>
2. Add an interface named ipsec_endpoint1:
(config)> add network interface ipsec_endpoint1
(config network interface ipsec_endpoint1)>
TX40 User Guide
Generic Routing Encapsulation (GRE)
576