> Initially I was able to block them by blocking TCP SYN packets with an MSS of 1380 and 1300 but talking about it here was a mistake as their admin is on HN.

> Initially I was able to block them by blocking TCP SYN packets with an MSS of 1380 and 1300 but talking about it here was a mistake as their admin is on HN. They fixed that and made their MSS 1460 like a nominal home internet connection. For some reason I find this very amusing.