M350 Series User Manual 115
While clicking Edit button, it shows Off or On mode. Please select On to display setting items.
The GRE Mode is On.
Select from Off or On to enable GRE.
Set local address of the GRE tunnel.
Set remote address of the GRE tunnel.
Set IP address of this GRE tunnel device.
Tunnel Device Address Prefix
Set Prefix of the Tunnel Device Address.
Whether to use the key for identifying an individual traffic flow
within a tunnel.
The number of the tunnel key; default is '1234'.