Dice Update

After updating our 6500 switches with SUP2T supervisors and with some Nexus switches on the way, I decided to play around with ERSPAN. Being able to capture traffic from a remote data centre directly to my workstation is very useful so I took the opportunity to update Dice to correctly format ERSPAN packets.

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When the ERSPAN capture is sent directly to the host running the packet capture software, the captured data is encapsulated within GRE and an ERSPAN header as above. I thought it would be useful to be able to extract the original frames from the capture so added this option as well. When you save a capture you can now request that ERSPAN captures are extracted. For example, the frame above becomes:

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