A robust network discovery and port auditing tool for mapping local devices and identifying security vulnerabilities using nmap.
Install & Download
1. ClawHub CLI
The fastest way to install a skill directly from the registry.
npx clawhub@latest install rey-network-scanner
2. Manual Installation
Copy the skill folder to one of these locations
~/.openclaw/skills/ <project>/skills/ Priority: Workspace > Local > Bundled
3. Prompt Installation
Copy this prompt to OpenClaw to install it automatically.
Help me install rey-network-scanner using Clawhub. If Clawhub is not installed, install it first (npm i -g clawhub).
Prefer to download?
Get the raw skill files in a ZIP archive.
What is Network Scanner?
The Network Scanner is a specialized tool designed for comprehensive local area network (LAN) analysis. It leverages the industry-standard nmap utility to provide developers and sysadmins with deep visibility into their network infrastructure. By integrating this capability into Openclaw Skills, users can automate the identification of active hosts, open ports, and running services across private subnets.
This tool is built with a security-first mindset, emphasizing the use of private IP ranges and providing actionable insights into potential network risks. Whether you are troubleshooting connectivity or performing a routine security audit, this skill streamlines the process of gathering technical intelligence about your local environment using the Openclaw Skills framework.
Network Scanner Use Cases
- Scanning a local subnet to map all connected devices and their IP addresses.
- Identifying open ports on a specific server or workstation to troubleshoot network services.
- Auditing local network security to find insecure protocols like Telnet or unencrypted HTTP.
- Performing service version detection to identify outdated or vulnerable software versions.
- Discovering the hostnames and MAC addresses of hardware currently active on the LAN within the Openclaw Skills ecosystem.
How Network Scanner Works
- Subnet Detection: The skill first identifies the local network interface and default gateway to determine the target CIDR range for the Openclaw Skills session.
- Target Validation: It enforces strict security rules, ensuring scans are limited to private IP ranges (10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16) unless explicit permission is granted.
- Scan Execution: Based on the user's objective, it triggers the appropriate nmap command—ranging from fast host discovery to deep vulnerability scanning.
- Data Analysis: The tool parses the raw nmap output to identify services, versions, and potential security weaknesses.
- Report Generation: A structured Markdown report is produced, categorizing devices and highlighting critical security concerns like open insecure ports.
Network Scanner Setup
Ensure that the nmap utility is installed on your host system to utilize this component of Openclaw Skills. This is a primary requirement for the network scanning engine.
# For Debian/Ubuntu
sudo apt update && sudo apt install nmap
# For macOS (Homebrew)
brew install nmap
No API keys are required as the skill interacts directly with your local network interfaces via standard CLI tools.
Network Scanner Data Schema & Taxonomy
The skill generates structured reports based on scan results to maintain clarity within Openclaw Skills. Key data points captured include:
| Field | Description |
|---|---|
| IP Address | The unique network address of the discovered device. |
| Hostname | The resolved DNS or NetBIOS name of the host. |
| MAC Address | The physical hardware address (requires elevated permissions). |
| Open Ports | A list of active TCP/UDP ports found during the scan. |
| Services | The identified software or protocol running on each port. |
| Security Flags | Automated warnings for insecure protocols (e.g., Telnet, FTP). |
Network Scanner Advanced Features
- Multi-level scanning options including service version detection (-sV) and OS fingerprinting (-O) integrated into Openclaw Skills.
- Integrated vulnerability scanning using the nmap scripting engine (--script vuln).
- Smart subnet detection to automatically identify the current local environment for the agent.
- Firewall evasion capabilities using the -Pn flag to scan hosts that block ICMP requests.
- Support for non-root execution for standard port and service discovery to maintain system security while using Openclaw Skills.
SKILL.md
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