2

Click Apply. An entry field appears.

11.(Optional) If you selected custom value from the TOS value drop-down window, enter a value in the range of 0-255.

12.Click Apply.

13.(Optional) Change the interface’s logical name to a more meaningful one by typing the preferred name in the Logical name text box.

Click Apply.

14.(Optional) Add a comment to further define the logical interfaces function in the Comments text box.

Click Apply.

15.Click Save.

High Availability GRE Tunnels

High Availability GRE Tunnels provide redundant encrypted communication among multiple hosts. They are created by performing the procedures associated with the configuration of GRE tunnels, OSPF, VRRP, and Check Point firewall.

HA GRE Tunnel Example

In our example, we configure two-way tunnels between IP Units 1 and 2, and IP Units 3 and 4. Since the steps required to configure a HA GRe tunnel are addressed in the appropriate sections

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