Another technique utilized for blackholing is blackhole filtering. In this approach, network operators establish filtering rules at network border routers to identify and filter out malicious traffic before it reaches the intended target. By applying these filters, ISPs can effectively shield their network infrastructure from DDoS attacks and other forms of unwanted traffic.

ISPs and network operators often leverage the power of Border Gateway Protocol (BGP) communities to enhance their blackholing capabilities. This also enables customers to activate blackholing for unwanted traffic on their own, empowering them to protect their services from potential attacks.

ISPs and network operators often use BGP communities, which allow them to tag and distribute routes to specific peers or customers. This grants more precise policy control and even allows customers to activate blackholing for unwanted traffic on their own.

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