Core Capability

Protect Your Internet Gateway
Without Proprietary Hardware.

Every internet gateway is a potential entry point for unwanted traffic, DDoS attacks, and unauthorized access. Neurowall secures the boundary between your network and the internet — on standard Linux infrastructure you already run.

The Problem

Gateways are under
constant pressure.

Traditional firewall appliances address these threats — but at significant cost.

Volumetric DDoS

Attack traffic overwhelms services and consumes bandwidth before reaching applications.

Unauthorized Scanning

Continuous reconnaissance and brute-force attacks against exposed services.

Known Threat Sources

Malicious IPs and botnets generating traffic that should never reach your infrastructure.

Hardware Lock-In

Proprietary appliances require expensive licensing, hardware refresh cycles, and limited automation.

DNS-Based Attacks

DNS amplification and malicious domain resolution targeting name resolution services.

Operational Complexity

Multiple management consoles, manual rule updates, and limited API access slow down operations.

How It Works

Filter early.
Protect everything behind it.

Neurowall deploys at the network edge and processes packets before they reach your infrastructure.

Internet Traffic
Neurowall Gateway
eBPF/XDP fast path · nftables flexible path
↓ clean traffic only
Protected Infrastructure
Servers · VMs · Containers · Applications
Fast Path — eBPF/XDP

Packets are processed at the network driver level. Blocked traffic is dropped before the kernel allocates memory — no wasted CPU, no wasted bandwidth.

Flexible Path — nftables

NAT, port forwarding, and stateful inspection for traffic that passes the fast path. Both paths stay synchronized automatically.

Key Capabilities

Everything a gateway
firewall should do.

CapabilityWhat It Does
L3/L4 FilteringAllow/block rules based on IP, CIDR, port, and protocol
Rate LimitingPer-source rate controls to absorb burst traffic
Threat IntelligenceAutomatic enforcement of IP reputation — AbuseIPDB, OTX, MISP
DNS SinkholeBlock access to known malicious domains
Port ForwardingNAT and DNAT rules for service exposure
AllowlistingTrusted sources bypass all block rules
High AvailabilityActive-passive failover with sub-3-second failover via etcd
RBACAdmin, Operator, and Viewer roles with audit logging
Monitoring70+ Prometheus metrics — packet counters, rule sync, system health
Business Benefits

What your organization gains.

Improve Service Availability

Stop unwanted traffic before it impacts applications. Filter at the gateway, not at the application layer.

Reduce Infrastructure Costs

Deploy on standard Linux servers instead of proprietary firewall appliances. No hardware refresh cycles.

Simplify Operations

Centralized policy management with RBAC. Manage multiple gateways from one control plane.

Automate Security

REST API integrates with Terraform, Ansible, and CI/CD pipelines. Security as code.

Scale Flexibly

Add capacity by deploying additional Linux instances. No licensing per appliance.

Full Visibility

Prometheus metrics and Grafana dashboards. Know exactly what your gateway is doing.

Typical Deployments

Where organizations
deploy it.

Enterprise internet gateways Data center perimeter Co-location facility edges ISP customer gateways Campus network boundaries Cloud VPC gateways Branch office networks Hosting provider infrastructure
Get started

Ready to protect your internet gateway?