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M2M Cellular Gateway
Create/Edit GRE tunnel
The router supports up to a maximum of 32 simultaneous GRE tunnel connections. Ensure that the GRE
enable box is checked to enable before we can setup GRE.
When Add/Edit button is applied a series of configuration screen will appear.
GRE Rule Configuration Window
Item
Value setting
Tunnel Name
A Must fill setting
1. A Must fill setting
Interface
2. WAN 1 is selected
by default
1. A Must fill setting
Operation Mode
2. Alway on is
selected by default
Tunnel IP
A Must fill setting
Remote IP
A Must fill setting
Index skipping is used to reserve slots for new function insertion, when required.
Description
Enter a tunnel name. Enter a name that is easy for you to identify.
Select WAN interface on which GRE tunnel is to be established.
There are three available operation modes. Always On, Failover, Load Balance.
Failover/ Always Define whether the GRE tunnel is a failover tunnel function or an
Always on tunnel.
Note: If this GRE is a failover tunneling, you will need to select a primary GRE
tunnel from which to failover to.
Load Balance Define whether the GRE tunnel connection will take part in load
balance function of the gateway. You will not need to select with WAN interface as
the system will automatically utilize the available WAN interfaces to balance traffic
loads. For more details on WAN Load Balance, refer to Load Balance Usage in this
manual. On gateway's web‐based utility, go to Basic Network > WAN > Load
Balance tab.
Note: Failover and Load Balance functions are not available for Dynamic VPN
specified in Tunnel Scenario.
Enter the Tunnel IP address.
Enter the Remote IP address of remote GRE tunnel gateway. Normally this is the
public IP address of the remote GRE gateway.
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