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GRE Termination arrives on the Cubro EXA

The latest firmware release (V2.0R11T007) for the Cubro EXA48600 and EXA32100 brings a highly requested feature, along with other refinements and stability improvements, to Cubro’s cutting-edge Packet Broker platform. Until now, the Cubro G5 Sessionmaster devices were able to strip GRE headers, however, they were not able to function as an actual GRE Tunnel Endpoint. With this new firmware release these units gain the capability to terminate GRE Tunnels. It is now possible to assign up to 16 IP addresses per physical port on the device, enabling the GRE Termination feature. Configuration is quite simple and drastically streamlined in comparison to the Packetmaster product line.

To configure a Cubro EXA48600 or EXA32100 Sessionmaster to function as a GRE endpoint go to the “Ports” menu tab and select “Interfaces”.

From the “Interfaces” screen choose the port that you wish to have the GRE traffic received on and click the “edit” icon.

Finally, in that port’s settings configure at least one IP address for the port and apply the new settings. As soon as this is done the port will begin sending out ARP packets to make itself visible on the network. The port will now terminate any GRE tunnels with that destination IP received.


Cubro is always looking for feedback and feature requests so that we can implement features, such as this one, to continually improve our product set and provide the best tools available to the people that use them.


About Cubro Network Visibility

Cubro provides a comprehensive set of network visibility solutions that are efficient, cost-effective, and performance-oriented. With products that enable total network visibility into your traffic, we can enhance and support deployments in the Telecommunications, ISP, Data Centre, Enterprise, and Government spaces whether it be in virtualized or physical environments. Cubro will assist you in bringing your network performance and security monitoring efforts to their peak level and unlock valuable insights into your network traffic. Fo.r more information check


Product Update by Derek Burke & Lukas Etlinger, Support Engineers, Cubro Network Visibility. For any further clarifications, write to us at This email address is being protected from spambots. You need JavaScript enabled to view it.. 


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