@gpotter2
Hi, on some hardware in the loop tests, we discovered the following error:

WARNING: Socket <scapy.contrib.isotp.ISOTPNativeSocket object at 0x7319dc70> failed with 'unpack requires a buffer of 16 bytes'. It was closed.

We assume this error is fired from this line:

Unfortunately, I don't know exactly whats going on here, but my ISOTPNativeSockets get closed on a receive.