TMS zl Management and Configuration Guide ST.1.2.100916

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Virtual Private Networks
Configure a GRE Tunnel
Figure 7-168. Add Policy Window
g. Optionally, select the Enable logging on this Policy check box if you
want to view log messages for this policy.
Note It is not recommended that you enable logging permanently, because
policy logging is processor-intensive. Use policy logging for troubleshoot-
ing and testing only.
h. Click Apply.
4. Allow GRE traffic from the TMS zl Module to the remote tunnel endpoint:
a. For Action, leave the default, Permit Traffic.
b. For From, select SELF.
c. For To, select the remote zone.
d. For Service, specify the object that you configured for GRE.
e. For Source, 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.