Gre Tunnels; Gre Tunnels > Gre Tunnels - Multitech MultiModem rCell User Manual

Chapter 3 – Using the Web Management Software

GRE Tunnels

GRE tunneling and GRE routing together are referred to Generic Routing Encapsulation (GRE). GRE Routing is an
integral part of GRE tunneling. First, the GRE Tunnels are created using the GRE Tunnel Configuration. Then the
routes for the remote networks that are to be routed through a tunnel need to be specified in the GRE Routes
Configuration. Thus, all the traffic destined to remote networks associated to a tunnel will get routed through that
tunnel.
GRE Tunnels > GRE Tunnels
Tunneling allows the use of a public network to convey data on behalf of two remote private networks. It is also a
way to transform data frames to allow them to pass networks with incompatible address spaces or even
incompatible protocols. If you want to read more about how this works, see the online Help.
GRE Tunnel Configuration
Tunnel Name:
Local IP:
Remote IP:
or FQDN:
Click Add when done. GRE Tunnels display at the bottom of the screen.
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Enter a name for the new tunnel.
Select the local interface on which the tunnel is being created. Eventually, the packets
destined for this tunnel will be routed through it.
Set either Remote IP or FQDN. Select the Remote IP address that marks the other end
point of the tunnel (this is the one to which the routed packets will be received).
Set either Remote IP or FQDN. Enter the FQDN (Fully Qualified Domain Name) for the
Remote IP, which can be either the IP Address or an FQDN.
Multi-Tech Systems, Inc. MultiModem rCell User Guide