Hello, I want to recommend the dataset we created, it contains TCP SYN and UDP flood attacks. You can access the explanation of the dataset from following paper:
Article Boğaziçi University Distributed Denial of Service Dataset
you can access the dataset from: https://data.mendeley.com/datasets/mfnn9bh42m/1#file-ba7d3a46-1dc3-452e-aeac-26d909389b29