Individual skill
detecting-arp-poisoning-in-network-traffic
Detect and prevent ARP spoofing attacks using ARPWatch, Dynamic ARP Inspection, Wireshark analysis, and custom monitoring scripts to protect against man-in-the-middle interception.
internal/tools/skills/data/network-security/detecting-arp-poisoning-in-network-traffic/SKILL.md
Source commit d42f381ad34843e71a42658e5c57290c713e85af
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- Observed behavior
- Network or broad shell
- Last checked
- Nov 9, 2026
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Repository context
- Repository stars (not skill ratings)
- 1,315
- Repository last updated
- Nov 8, 2026
- License
- Apache-2.0
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- cybersecurity Repository topic
- security Repository topic
- bug-bounty Repository topic
- automation Repository topic
- autonomous-pentesting Repository topic
- ai-agent Repository topic
- ai-security Repository topic
- ethical-hacking Repository topic
- golang Repository topic
- penetration-testing Repository topic
- arp-poisoning Declared skill tag
- arp-spoofing Declared skill tag
- mitm Declared skill tag
- dynamic-arp-inspection Declared skill tag
- arpwatch Declared skill tag
- network-security Declared skill tag
- man-in-the-middle Declared skill tag
- layer-2-security Declared skill tag
- security Derived category
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# Detecting ARP Poisoning in Network Traffic
## Overview
ARP poisoning (ARP spoofing) is a Layer 2 attack where an adversary sends falsified ARP messages to associate their MAC address with the IP address of a legitimate host, enabling man-in-the-middle (MitM) interception, session hijacking, or denial of service. Since ARP has no built-in authentication mechanism, any device on a broadcast domain can forge ARP replies. Detection requires monitoring ARP traffic for anomalies such as gratuitous ARP floods, IP-to-MAC mapping changes, and duplicate IP addresses. This skill covers deploying multiple detection layers including ARPWatch, Dynamic ARP Inspection (DAI), Wireshark-based analysis, and custom Python monitoring tools.
## When to Use
- When investigating security incidents that require detecting arp poisoning in network traffic
- When building detection rules or threat hunting queries for this domain
- When SOC analysts need structured procedures for this analysis type
- When validating security monitoring coverage for related attack techniques
