Regarding the removal of ethernet , IP headers, port numbers.

[OXALICACID9172]

In the paper it is mentioned that the Ethernet headers, IP headers and port numbers are removed. But in generating the pre-training data(In get_burst_feature() function) I see that only first 64 bytes of a packet are considered( line: 109) and I don't see a line removing the headers. Am I missing something??