Ubisoft Masterserver down? (merged)

[RSColonel_131st]

Originally Posted by Iridium

One of the more common methods for protecting oneself from a DDoS is to identify the IP from which it is coming, and block it at the firewall. This can be tricky to do if it's coming from residential ISP blocks, because a spammer may be able to disconnect, reconnect, and have a new IP in a matter of moments. So the solution changes to blocking a residential IP range, and if the attack is coming from multiple locations like this likely did, then they block multiple residential IP ranges.

If the attack is coming from a sizeable botnet they would have to block 60, 70% of all EU traffic.