From nanog-bounces@nanog.org Sat Oct 22 15:51:34 2016 If they are easy to trace, then it should be easy for you to tell me how to find them on my network.
Not sure if you're trolling now, apologies if what I wrote wasn't clear. If you did want to find them before they attack then you could scan for them, the miscreants already did and easily found them. For some attack vectors there are services that are doing it for you, see the excellent https://www.shadowserver.org/wiki/pmwiki.php/Involve/GetReportsOnYourNetwork
The addresses being known to them doesn't help me at all clean up my network or help other networks clean up theirs.
Did you read my whole mail? The suggestion is people who get attacked tell the ISPs of the devices doing the attacking
It would be rather difficult for me (and I'm sure many other operators) to distinguish normal Dyn traffic from DDoS Dyn traffic.
I was not suggesting you try and guess, I was suggesting you be given data from actual attacks. brandon