There are some rumors that you are looking at implementing ERSPAN support in the upcoming versions of DC-RUM. Is this true? If so, could you please provide an estimate of when it will be available? In my context ERSPAN support meaning stripping the 50 bytes being the "cisco erspan gre header".
I checked with some folks here on the architecture and support side and we are not aware of any plans to support ERSPAN at the moment. I can see that you opened a support case for that as well and it seems that we are working with Development to provide you with a precise answer. I hope we'll be able to answer your question soon.
We found one solution that helped us to work with Cisco ERSPAN traffic
It is additional module named - RCPCAP. RCDCAP is wrapper program that dissects the traffic and creates a virtual interface where the traffic is already decapsulated.
We tested this solution and it worked for Cisco ERSPAN
But it works only for ERSPAN
If you have GRE tunnel from VMware example than it will not work
Because VMware does not use ERSPAN. it use only GRE tunnel
So we are also very much expect from DC RUM developers when they implement the ability to analyze traffic from GRE on AMD