TMS zl Management and Configuration Guide ST.1.2.100916

7-206
Virtual Private Networks
Configure a GRE Tunnel
Exact steps for configuring these policies are given in the sections below.
Unicast Access Policies
1. In the left navigation bar of the Web browser interface, click Firewall >
Access Policies. You are at the Unicast tab.
2. Click Add a Policy.
3. Allow GRE messages from the remote tunnel gateway:
a. For Action, leave the default, Permit Traffic.
b. For From, select the remote zone.
c. For To, select SELF.
d. For Service, specify (47) GRE.
e. For Source, specify the actual IP address of the remote tunnel
endpoint.
This is the Destination IP Address that you specified in the GRE tunnel.
It is different from the address configured on the subnet reserved for
the tunnel.
You can select a previously configured address object or type the IP
address manually. (Click Options and select the custom option.)
f. For Destination, specify an actual module IP address on a TMS VLAN
that the remote endpoint can reach.
This is the Source IP Address configured in the GRE tunnel. It is
different from the address configured on the subnet reserved for the
tunnel.