Description

PCAP Filter provides a user-mode component library API to easily leverage a driver that listens for traffic on the network interface. Instead of parsing raw packets yourself, your app gets that traffic through the component API.

Filter expressions use the same BPF syntax as libpcap, tcpdump, and Wireshark, so you can target exact traffic by IP, protocol, port, or direction without learning a new filter language.

With the NetFilter component, you can also modify or drop packets in real time, not just observe them. No low-level driver code required.

Built for production. Proven at scale.

Components and drivers from Callback Technologies have been shipping in commercial products for over two decades, from single-developer tools to enterprise software deployed at Fortune 500 companies.

Intercept and Adjust Network Traffic

Monitor network activity in real-time and react instantly. PCAP Filter’s flexible API lets your application capture exactly the packets you care about, ensuring you never miss critical events.

Modify Packets On-The-Fly

Alter packet contents or headers before they reach their destination. With the NetFilter component, your application can modify or drop packets in real-time—without the need to write low-level driver code.

Leverage Industry-Standard Filter Syntax

Employ the same filter expressions used by Wireshark and other pcap-based tools to target exactly the traffic you need. IPMonitor and NetFilter enable your application to capture packets by IP, protocol, port, or direction using a familiar filter syntax.

Zoom In or Zoom Out

Toggle between detailed per-packet inspection and high-level statistical analysis. Adapt your capture strategy as your diagnostic or auditing requirements change—without the need for significant code rewrites.

Implement Custom Security Policies

Block malicious packets, reroute sensitive data, or enforce bandwidth limits. PCAP Filter enables you to apply your own logic and safeguards to detect and respond to suspicious activity in real-time.

Audit and Log Network Activity

Maintain a detailed record of all captured traffic for compliance and diagnostics. Instantly access the data you need to identify issues and ensure regulatory adherence.

Avoid Low-Level Driver Code

Deliver robust network features without delving into kernel development. PCAP Filter abstracts away the heavy lifting, letting you focus on building innovative solutions rather than wrestling with OS-level details.

Streamline Cross-Platform Deployment

Write your code once and deploy it everywhere. PCAP Filter provides a single, consistent API across Windows, Linux, and macOS, freeing you to concentrate on delivering value rather than maintaining separate code paths.

Additional Information