I am capturing between a computer and a router using a Dualcomm Network Tap.
I have noticed some packets that have a length that exceed the MTU of 1492 set in the router.
I did the capture from the wire for the specific purpose of avoiding the issue of Large Segment Offload.
I do not understand how there can be packets between the NIC and the router that exceed the MTU.
The operating system I am running Wireshark on for the capture is Ubuntu 20.04 using a separate NIC.
In case the NIC was doing Large Receive Offload I tried
sudo ethtool --offload enp3s0 rx off
but it didn't help.