Building a Service-Specific DDoS Mitigation Architecture with AhnLab DPX
DDoS mitigation is no longer simply about handling high-volume attack traffic. It requires the ability to respond to increasingly complex attack patterns without disrupting service availability for legitimate users. These requirements prompted the public institution “L” to seek for a protection framework capable of responding to persistent DDoS attacks, along with a mitigation architecture capable of handling large volumes attacks and centralized management for multiple appliances and policies.
To address these needs, they deployed AhnLab DPX to improve its response capabilities against various DDoS attacks and built a protection framework that could help maintain stable service operations.
Challenges
The customer needed to improve its DDoS response capabilities while ensuring operational efficiency, minimizing the impact on legitimate traffic, and maintaining service availability.
Mitigation Architecture Tailored to Service Characteristics
The institution provides services to customers across multiple service networks, each with distinct traffic characteristics. Applying a uniform mitigation policy without accounting for these differences can also affect legitimate traffic.
To apply mitigation policies tailored to each service, the agency needed to segment its service networks, define service-specific mitigation criteria, and build an architecture that minimized the impact on legitimate traffic.
Architecture for Processing Large-Scale DDoS Attack Traffic
As DDoS attacks increase in scale, a single mitigation appliance may not have enough capacity to handle surging attack traffic, increasing the risk of service disruption. Effective mitigation requires not only sufficient processing capacity but also a resilient architecture that can continue operating even if an appliance fails. The customer therefore needed to deploy multiple DDoS mitigation appliances in parallel for each service network so that services could remain stable during traffic surges.
However, segmenting service networks and deploying multiple appliances in each network could make policy and log management more complex. They needed an integrated management environment that could centralize operations across multiple networks and maintain consistent policy and log management.
Download the full case study to learn how AhnLab DPX helped the customer strengthen DDoS response, maintain service availability, and streamline centralized mitigation operations.
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