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DNS Flooding / DOS Attack

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So here is my problemMan Happy

We have dedicated servers behind an edgerouter, some of the servers ar doing flood attacks (servers get hacked, customers are hackers... ect). Is there a way to setup  a filter or firewall or qos rule to block flooding from our network?

So for example can I setup something that blocks a connection that sends more than say 50.000 pps to a single ip? The problem is mainly the large number of small packets. 

We have something like this in a tp-link router that works well, but the router tops out at about 300Mb/sec so it is not an option for us....

 

 

 


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