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I think you're seeing the effect of capturing on a device that is processing the packets. Those packets are not actually seen like this on the wire. See this blog post for more details:

https://blog.packet-foo.com/2014/05/the-drawbacks-of-local-packet-captures/

I think you're seeing the effect of capturing on a device that is processing the packets. Those packets are not actually seen like this on the wire. See this blog post for more details:

https://blog.packet-foo.com/2014/05/the-drawbacks-of-local-packet-captures/

And I think you're misinterpreting the quote from the TSO/GSO answer - the capture must not be performed on any device that is part of the packet generation or forwarding. The article means you should use a SPAN port or TAP to capture with an independent device.