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hping3 -Q -p 139 -S
# -Q, will provide the sequential number of the packer
# -p, will specify the destination port
# -S will set the SYN flag

Once we have these numbers we can also generate a spectrogram and try to see what the spectrogram is more similar to. An hping script which can be used to this purpose is:

hping3 exec isn-spectrogram.htcl 100 135