Gre Tunnels Configuration; Gre Tunnel Configuration - Advantech B+B SmartWorx LR77 v2 Configuration Manual

3.12 GRE Tunnels Configuration
GRE is an unencrypted protocol.
To open the GRE Tunnel Configuration page, click GRE in the Configuration section of the
main menu. The menu item will expand and you will see four separate configuration pages:
1st Tunnel, 2nd Tunnel, 3rd Tunnel and 4th Tunnel. The GRE tunnel function allows you to
create an unencrypted connection between two separate LAN networks. The router allows
you to create four GRE tunnels.
Item
Description
Remote IP Address
Remote Subnet
Remote Subnet Mask
Local Interface IP
Address
Remote Interface IP
Address
Multicasts
Pre-shared Key
Attention, the GRE tunnel does not pass through NAT.
The changes in settings will apply after pressing the Apply button.
Description
Description of the GRE tunnel.
IP address of the remote side of the tunnel.
IP address of the network behind the remote side of the tunnel.
Specifies the mask of the network behind the remote side of the
tunnel.
IP address of the local side of the tunnel.
IP address of the remote side of the tunnel.
Activates/deactivates sending multicast into the GRE tunnel:
disabled – Sending multicast into the tunnel is inactive.
enabled – Sending multicast into the tunnel is active.
Specifies an optional value for the 32 bit shared key in numeric
format, with this key the router sends the filtered data through
the tunnel. Specify the same key on both routers, otherwise the
router drops received packets.
Table 40: GRE Tunnel Configuration
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3. CONFIGURATION