Digi TransPort LR54 - Page 222

Virtual Private Networks (VPN) Generic Routing Encapsulation (GRE)
Digi TransPort WR Routers User Guide
222
3. Configure the GRE tunnel:
a. Select Tunnel: Select the number for the GREtunnel.
b. Enable: Enables or disables the GRE tunnel.
c. Description: (Optional) Enter a description for the GREtunnel.
d. IP Address: Enter the IP address of the GRE tunnel.
e. Subnet Mask: Enter the IP network mask of the GRE tunnel.
f. Peer: Enter the IP address or domain name of the remote device.
g. Key: Enter the key for the GRE tunnel.
See New GRE tunnel page for further information about these fields.
4. Click Apply
5. Add a route for the remote network.
IP routes are configured via the Web using the appropriate CLI commands from the Device
Console:
a. On the menu, click System > Administration > Device Console.
b. At the command prompt in the Device Console, type the IP route settings
commands. For example:
digi.router> route 1 destination 10.1.2.0
digi.router> route 1 mask 255.255.255.0
digi.router> route 1 interface gre1
For more information, see the route command.
6. Add an IP filter to allow packets to be forwarded to the local network:
a. On the menu, click Security > Firewall > Routing IPFilters.
b. Within the Routing IPFilters section, click  (Add Filter) to create a new filter.
i. Enable: Enables or disables the IP filter.
ii. Description: (Optional) Enter a description for the GREtunnel.
iii. Action: ACCEPT.
iv. Source: Select the appropriate GREtunnel, for example, GRE tunnel 1.
v. Protocol: Any.
vi. Click OK.
Modify an existing GRE tunnel
1. On the menu, click Network > Services > GRE.
The GRE page appears.
2. Click to expand an existing GRE tunnel.
3. Modify the GRE tunnel settings as needed.
4. Click Apply