Exam HPE7-A02 Topic 2 Question 46 Discussion

Actual exam question for HP's HPE7-A02 exam
Question #: 46
Topic #: 2

You are using Wireshark to view packets captured from HPE Aruba Networking infrastructure, but you are not sure that the packets are displaying correctly.
In which circumstance does it make sense to ensure that Wireshark has GRE enabled as one of its analyzed protocols?

A. When the traffic was captured on an HPE Aruba Networking gateway and sent to a remote IP B. When the traffic was captured on an HPE Aruba Networking gateway dataplane and saved to a file C. When the traffic was captured on an HPE Aruba Networking Mobility Controller (MC) control plane and saved to a file D. When the traffic was captured on an HPE Aruba Networking MC dataplane and saved to a file

Suggested Answer: D Vote an answer

On Aruba Mobility Controllers, dataplane captures can include wireless frames encapsulated inside GRE (for example, ERM / remote mirroring or tunneled 802.11 data). If Wireshark does not have GRE dissection enabled, these packets may appear as generic IP/UDP payloads, and the inner traffic (client frames) will not decode correctly.
MC dataplane is exactly where GRE-encapsulated user traffic is likely to appear. Enabling GRE in Wireshark allows you to see and decode the inner payload (802.11/Ethernet/IP).
MC control plane traffic is generally not GRE encapsulated data traffic.
For gateways, captures exported as ERM over UDP often require different decoding (e.g., ARUBA_ERM, not generic GRE).

by Albert at Jul 27, 2026, 07:14 AM

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