ON-PREMISES PROTECTION

On-Premises DDoS Protection for Always-On Business Continuity

Attacks get blocked in your network—before they reach applications, before customers notice, before they damage your business. Sub-second inline mitigation protects revenue, reputation, customer trust, and regulatory compliance.

Highly automated
Your team stays focused on what matters
Sub-second response
Attacks stop before revenue stops
Zero vendor lock-in
Deploy on your infrastructure, your way
Always-on protection
Even when data centers fail

Network Traffic

Mixed traffic flow

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INLINE

Inline DDoS Mitigation

DETECTION
Real-Time
MITIGATION
Automated
LATENCY
Minimal
CLEAN

Protected Applications

Revenue, reputation, trust secured

Need unlimited capacity for volumetric attacks?

Combine on-premises protection with cloud scrubbing for seamless hybrid deployment. Get the best of both worlds.

Explore Hybrid
COMPLETE CONTROL, ZERO COMPROMISE

What is On-Premises DDoS Protection?

On-premises DDoS protection deploys inline at your network edge, analyzing and filtering traffic in real-time before it reaches your applications. Unlike cloud-based solutions that redirect traffic through external scrubbing centers, on-premise protection operates directly within your infrastructure—eliminating latency penalties and maintaining complete data sovereignty.

The key advantage is response time. Traditional flow-based detection systems analyze aggregated traffic patterns and can take several minutes to identify and respond to attacks. In contrast, inline packet-level inspection enables behavioral threat detection on the first few packets—achieving sub-second mitigation that prevents service degradation before customers are affected.

This approach is particularly valuable for organizations with strict compliance requirements, performance-critical applications, or data residency mandates where traffic must remain within controlled infrastructure. SmartWall ONE delivers line-rate inspection up to 800 Gbps with less than 1ms latency, ensuring protection doesn't compromise performance.

How On-Premise Protection Works

Inline Packet Inspection

Every packet is analyzed at line rate as it enters your network, enabling immediate threat identification.

Behavioral Detection

Machine learning identifies anomalous patterns in the first packets—not after minutes of flow aggregation.

Automated Mitigation

Surgical filtering removes malicious traffic while legitimate requests flow uninterrupted—no manual intervention required.

Zero Performance Impact

Sub-millisecond latency maintains application performance even during active attack mitigation.

Response Time Comparison

Detection and mitigation speed directly impacts service availability and customer experience

CLOUD SCRUBBING
5-15min
BGP redirect + detection + mitigation activation
FLOW-BASED DETECTION
3-6min
Flow aggregation + analysis + policy activation
OUR SOLUTION
INLINE PACKET INSPECTION
<1s
Immediate detection + automated blocking

Coverage that spans the globe

Protection That Works at Network Speed

Attacks identified and blocked within one second—before customers notice, before services degrade

Attack Traffic
Mixed with legitimate traffic
<1s DETECTION
INLINE

On-Premises DDoS Protection

Behavioral analysis on first packets
Inline blocking at line rate

L3-L7
All Layers
800G
Throughput
<1ms
Latency
Your Applications
Services never degraded

How the Defense Works

1

Inline Packet Inspection

SmartWall ONE sits directly in your network path—not analyzing copies of traffic, not waiting in the cloud. Every packet gets inspected at line rate as it arrives, with sub-microsecond latency that doesn't slow legitimate traffic.

2

Behavioral Threat Detection

Attacks announce themselves through behavior. SYN floods don't look like legitimate connections—they look like machine guns. HTTP floods don't browse like real people. The behavioral analysis engine spots these patterns instantly in the first few packets and blocks them.

3

Multi-Layer Protection

Layers 3, 4, and 7 attacks all get stopped by the same platform. Volumetric floods, protocol abuse, encrypted application attacks, bot traffic—all handled without managing multiple security tools or piecing together different vendors' telemetry.

4

Centralized Management

SecureWatch Analytics orchestrates policies across all your SmartWall ONE deployments. Configure protection rules once; they enforce everywhere. If a data center goes offline, protection automatically stays active at your other sites.

Protection You Control. Security That Just Works.

Deploy in your data center on your terms. Get sub-second mitigation without sending traffic to the cloud or waiting for manual intervention.

Your Team Sleeps at Night

No more 2 AM calls. Attacks get blocked automatically while your team monitors dashboards—not fighting fires.

Here's what changes: you stop getting emergency calls about attacks. You stop scrambling to redirect traffic. You stop explaining why services were down.

SmartWall ONE runs automatically. After learning your traffic patterns (about 48 hours), it just works. Attacks get blocked. Clean traffic flows through. Your team reviews reports in the morning instead of fighting fires all night.

Business Impact:

Your security team focuses on strategic initiatives instead of reactive firefighting. Nobody needs to be on-call specifically for attack mitigation.

Deploy On Your Terms

Run on our appliances or your existing Dell, HPE, or SuperMicro servers. Your hardware, your choice.

Most vendors lock you into their specific appliances. Then you're stuck with their hardware refresh cycles, their pricing, their supply chain. Need protection in Brazil or Singapore? Good luck waiting months for specialized equipment.

We do sell appliances—they're excellent if that's what you want. But we also run on Dell, HPE, or SuperMicro servers you already own or can source locally. Same software, same protection.

  • Faster deployment when spinning up new locations
  • Lower costs buying servers locally vs. paying import duties
  • Flexibility to virtualize or run bare metal based on needs

One Platform for Everything

Stop juggling multiple security tools. One interface, one log format, one vendor relationship.

Count how many tools your team uses for DDoS defense right now. Firewall for some stuff. WAF for application protection. Maybe cloud scrubbing for volumetric attacks. Flow monitoring for visibility. Each one has its own interface, log format, and management overhead.

SmartWall ONE handles network-layer volumetric floods, protocol attacks, encrypted HTTPS floods, application-layer exploits, and bot traffic. When attacks hit multiple layers simultaneously (they usually do), you see the whole attack in one view.

Operational Relief:

Training gets simpler. Troubleshooting gets faster. Budget discussions get cleaner. Better signal-to-noise ratio means no more alert fatigue.

Understand Your Traffic

Get continuous intelligence on your network—attack or not. Make better infrastructure decisions with real data.

Most DDoS tools only give you visibility during attacks. CORE Traffic Analysis runs continuously, showing which applications consume bandwidth, which customers generate which traffic types, where your transit costs actually go.

This turns out to be incredibly valuable for business decisions that have nothing to do with security:

  • Service providers identify peering opportunities to cut transit costs
  • Enterprises use it for capacity planning and cost optimization
  • Make infrastructure decisions based on real data instead of estimates

Who Needs On-Premises Protection?

Organizations that can't afford latency, need compliance control, or run their own infrastructure

Enterprise Data Centers

Financial services, healthcare, government, and regulated industries

The Challenge

Your CIO wants uptime metrics. Your CFO questions security budgets. Compliance needs proof that data never leaves your infrastructure. And when attacks hit, you're choosing between routing to scrubbing services (10+ minutes, compliance issues) or hoping your firewall holds up.

Either way, applications experience downtime.

What Changes

  • Attacks blocked before they reach applications—sub-second response
  • Traffic never leaves your infrastructure—compliance satisfied
  • Protection runs automatically—your team monitors, not firefights

Service Providers & Hosting

ISPs, hosting companies, MSPs, and colocation providers

The Challenge

Your customers expect 100% uptime. Your SLAs promise it. But you're either absorbing attacks with your infrastructure (expensive, risky) or routing to third-party scrubbing (customers notice and complain).

Managing per-customer policies across hundreds of accounts sounds like a nightmare.

What Changes

  • Multi-tenant protection through centralized CORE management—one interface
  • Protection without traffic leaving your network—customers don't notice
  • Traffic visibility to optimize peering and offer as customer service

Self-Hosted SaaS

B2B platforms, developer tools, and mission-critical applications

The Challenge

Every minute of downtime directly impacts revenue and retention. Your support team drowns during outages. Your lean infrastructure team can't handle constant DDoS firefighting.

Cloud scrubbing introduces latency your customers feel. You need millisecond response, not seconds.

What Changes

  • Services stay online—customers don't experience slowdowns or outages
  • Support tickets drop to zero during attacks—invisible protection
  • Team focuses on product features, not security firefighting

Multi-Site Operations

Global enterprises with distributed data centers and redundant infrastructure

The Challenge

You've invested in infrastructure redundancy—multiple data centers, geographic distribution, failover capabilities. But DDoS protection is still a single point of failure.

If your defense data center goes dark, you're exposed until manual reconfiguration.

What Changes

  • Multi-Site Resiliency—policies stay active across all operational sites
  • Automatic failover—protection continues without manual intervention
  • True business continuity—defense adapts like application failover

How We Do It

The technical foundation your infrastructure and security teams need to validate this actually delivers

Inline Deployment

SmartWall ONE sits directly in the network path between internet edge and protected infrastructure. All traffic flows through at line rate with sub-microsecond latency.

  • Fastest response: Attacks blocked before reaching downstream systems
  • Zero-power bypass: Traffic continues flowing during power loss
  • Maximum reliability: Hardware failsafe ensures uptime

Scrubbing Mode

For selective protection or asymmetric routing architectures. BGP-integrated scrubbing where clean traffic flows normally while suspicious traffic routes through for inspection.

  • Selective protection: Route only suspicious traffic for inspection
  • BGP integration: Automatic traffic steering via routing protocols
  • Asymmetric support: Works with complex routing architectures

Hardware Appliances

Purpose-built Corero appliances optimized for DDoS protection workloads with zero-power bypass interfaces.

  • NTD 280: 80 Gbps, 100M PPS - Entry enterprise
  • NTD 3400: 800 Gbps, 400M PPS - Large enterprise
  • 1-RU rackmount: Minimal data center footprint

Software Installation

Run SmartWall ONE on approved bare metal servers or virtualized environments. Same protection, your hardware choice.

  • Bare metal: Dell, HPE, SuperMicro - up to 800 Gbps
  • Virtual: KVM, VMware ESXi - up to 400 Gbps
  • Source locally: Faster deployment, no import delays
HYBRID OPTION

Need Cloud Backup for Massive Attacks?

On-prem handles 95%+ of attacks. For rare volumetric floods that exceed your bandwidth, traffic automatically swings to cloud scrubbing via Akamai or your preferred provider. Pay only when you need it.

Why Architecture Matters

Every DDoS solution claims to stop attacks. The question is: how fast, at what cost to your performance, and with how much operational overhead?

The differences come down to architecture. Where the defense sits, how it processes traffic, whether it can respond before damage occurs—these determine whether your services stay online or go down during attacks.

Capability

Our Solution

Cloud Scrubbing

Standalone WAF

Legacy Tools

Sub-second inline mitigation
~
TLS/HTTPS flood protection
~
~
Bot detection (JA4/JA4H)
No performance degradation under attack
~
Unified L3-L7 platform
~
Session behavior tracking
~
~
Low-and-slow attack detection
~
Data sovereignty compliance
Deployment flexibility
~

Speed Isn't a Feature, It's the Whole Point

Redirect-based solutions take 5-15 minutes to activate. During those minutes, your services are down. Inline protection means the defense is already in place when attacks arrive. They get blocked immediately, not eventually.

Behavioral Analysis Catches What Volume Thresholds Miss

Volume-based detection triggers on traffic spikes—your marketing campaign can trigger false alarms while sophisticated attacks slip through. Behavioral analysis looks at what traffic is trying to do, not just how much there is.

Parallel Processing Prevents the Decryption Bottleneck

Most solutions decrypt all HTTPS traffic in a single queue. Under attack, that queue becomes the bottleneck—the defense itself becomes the performance problem. Parallel architecture means the DDoS engine runs at full speed while selective decryption happens separately.

Unified Platforms Reduce Operational Complexity

Managing separate tools for network DDoS, application protection, and traffic analysis means three different interfaces and three different vendors. One platform handling everything means clearer visibility, simpler troubleshooting, and fewer vendors to manage.

Frequently Asked Questions

Everything you need to know about on-premise DDoS protection

On-premise DDoS protection deploys inline in your network infrastructure to detect and block attacks before they reach your critical services. Unlike cloud-based solutions that route traffic through remote scrubbing centers, on-premise protection analyzes all traffic locally with sub-millisecond response times. The solution handles volumetric floods, protocol attacks, application-layer threats, and bot traffic—all while maintaining data sovereignty and eliminating the latency added by traffic redirection.
Physical appliances typically take a few hours to rack and activate once they arrive—they ship pre-configured for your environment. Software editions can deploy same-day if you have compatible servers ready. The platform learns your normal traffic patterns over 24-48 hours to build accurate behavioral baselines. During this learning period, protection remains active with slightly more conservative thresholds. After the baseline is established, you get full precision without false positives.
SmartWall ONE uses parallel processing architecture to analyze encrypted traffic without creating performance bottlenecks. The DDoS engine examines all traffic for behavioral patterns—characteristics visible without decryption like packet rates, protocol abuse, and connection patterns. Only suspicious traffic identified through behavioral analysis gets steered to selective decryption for deeper inspection. This approach maintains sub-microsecond latency even under multi-hundred-gigabit attack conditions while providing visibility into encrypted threats.
On-premise protection stops all attack types that impact availability: volumetric floods (UDP/ICMP amplification, SYN floods), state exhaustion attacks (connection exhaustion, SSL renegotiation), protocol attacks (malformed packets, fragmentation), application-layer attacks (HTTP floods, SlowLoris, OWASP Top 10 exploits), and sophisticated bot traffic. The behavioral analysis approach catches zero-day attack variants that signature-based tools miss—if traffic behaves like an attack, it gets identified and blocked even if the exact pattern is new.
No, the platform runs mostly automatically once deployed and traffic baselines are established. Most customers assign DDoS visibility to existing NOC or SOC teams who monitor dashboards, review attack reports, and occasionally adjust policies—but teams aren't actively fighting attacks or tuning detection thresholds daily. The platform handles automatic mitigation. If you want 24/7 managed monitoring, Corero offers managed services, but many organizations run this successfully with their existing teams.
Inline deployment provides the fastest response time—attacks get blocked within the first few packets. This approach works best for protecting critical services where every millisecond matters and you need guaranteed uptime. Scrubbing mode makes sense for asymmetric routing scenarios or when you want selective protection that only activates during attacks. Many organizations use both: inline for critical applications, scrubbing for everything else. The right approach depends on your infrastructure design and protection priorities.
Yes, SmartWall ONE integrates seamlessly with existing network infrastructure. On-premise components deploy inline with major router vendors (Cisco, Juniper, Arista, Nokia) or as standalone appliances. The platform supports standard protocols including BGP, NetFlow, sFlow, and IPFIX. Integration with SIEM platforms (Splunk, QRadar, Azure Sentinel), SOAR tools, and security stacks is available via RESTful APIs and webhooks. The software-first architecture means you can run on approved bare metal servers or purpose-built appliances without replacing existing network gear.
Yes, the architecture scales from 80 Gbps to 800 Gbps modularly without replacing everything. Physical appliances cluster together for increased capacity. Software editions scale by adding CPU cores to existing servers. When you add capacity at new locations, SecureWatch Analytics automatically replicates your policies across all sites—no need to reconfigure existing deployments. During capacity expansion or maintenance, protection stays active across your other locations automatically, ensuring continuous coverage during growth.
On-premise DDoS protection has different economics than cloud scrubbing. On-premise is a capital expense (appliances or software licenses) with predictable ongoing costs. Cloud scrubbing typically involves bandwidth commitment fees plus attack mitigation surcharges. For organizations with consistent high bandwidth usage, on-premise usually delivers lower total cost of ownership within 12-18 months. There's also the downtime cost factor: cloud scrubbing takes 5-15 minutes to activate, during which services are unavailable. On-premise eliminates that downtime entirely.
Built-in traffic analysis runs continuously, providing visibility into network activity whether you're under attack or not. You see traffic by source network, destination application, protocol type, and geographic origin—all in real-time dashboards. Enterprises use this to understand application bandwidth consumption, identify direct cloud connection opportunities, and plan capacity based on actual usage. Service providers use it for transit cost optimization. Attack telemetry shows attack source, target, size, mitigation effectiveness, and historical comparisons—all from one platform.

Still have questions?

Our DDoS protection specialists are here to help

Speak with a Specialist
PROVEN SUCCESS

Real Results from On-Premise Deployments

See how leading organizations deploy inline, always-on DDoS protection to maximize performance and maintain complete control

DATA CENTER PROVIDER

NorthC Schweiz AG

Swiss data center provider deployed Corero's real-time DDoS protection to build resilience and customer confidence across multiple facilities in Switzerland. The solution provides edge-based filtering integrated with Cisco infrastructure for minimal latency while preserving full data sovereignty.

Full
Data Sovereignty
Multi
Facility Deploy
Always
On Protection
"NorthC Schweiz AG deployed inline, always-on DDoS protection to build customer resilience and confidence. Edge-based filtering integrated with Cisco infrastructure ensures minimal latency and full data sovereignty—critical for Swiss data center operations."
Read Full Case Study
ENTERPRISE HOSTING

UK Dedicated Servers

UK-based enterprise hosting and managed communications provider strengthened their long-standing partnership with Corero by upgrading to next-generation NTD3400 technology. First EMEA adopter of 400G interface for enhanced capacity and future-proof infrastructure.

400G
Interface Speed
First
EMEA Adopter
Future
Proof Scale
"Corero's NTD1100 has been a reliable workhorse for our network, but as our growth accelerates, we knew it was time to take the next step. The new solution offers the scalability and advanced capabilities we need to stay ahead of threats and deliver seamless service to customers."
Read Full Case Study

Explore More Success Stories

Discover how organizations across industries protect their networks with Corero

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ON-PREM PROTECTED
<1ms
Latency at 800G
YOUR DATA. YOUR INFRASTRUCTURE.

Deploy Protection
Where You Need It

Software-first protection running on your infrastructure. Sub-millisecond response. Zero data sovereignty concerns. Complete control.

<1ms
Latency
800G
Throughput
100%
Your Control
Discuss Your Deployment
Deploy on your hardware or ours • No cloud lock-in • Full data sovereignty