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performing-arp-spoofing-attack-simulation

Simulates ARP spoofing attacks with arpspoof, Ettercap, and Scapy to test network detection controls.

954|172|Updated Mar 13, 2026
Search Tags:#penetration testing#network security#ettercap#scapy#ARP spoofing#layer 2 attack#man-in-the-middle
One-click install
npx skills add https://github.com/xalgord/xalgorix --skill performing-arp-spoofing-attack-simulation
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: performing-arp-spoofing-attack-simulation
Source: https://github.com/xalgord/xalgorix/tree/main/internal/tools/skills/data/network-security/performing-arp-spoofing-attack-simulation
Command: npx skills add https://github.com/xalgord/xalgorix --skill performing-arp-spoofing-attack-simulation

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires scapy.

What problem does it solve?

Security teams need to verify that Layer 2 defenses like Dynamic ARP Inspection, DHCP snooping, and IDS/IPS monitoring actually detect and block ARP cache poisoning, but manual ad-hoc testing often misses bidirectional poisoning, IP forwarding misconfiguration, and incomplete cleanup.

Core Features & Use Cases

  • Guided MITM Simulation: Step-by-step workflow covering host discovery, IP forwarding setup, bidirectional ARP poisoning with arpspoof and Ettercap, and traffic capture with tcpdump and tshark.
  • Custom Packet Crafting: Includes a Scapy script that poisons ARP caches bidirectionally and automatically restores legitimate ARP entries on interruption.
  • Detection Validation: Procedures to confirm DAI statistics, IDS alerts, and SIEM correlation, plus a structured report format for documenting results.
  • Use Case: A network team that deployed Cisco DAI on access switches uses this workflow on an authorized test VLAN to confirm spoofed ARP replies are dropped, verify Snort alerts fire, and document control effectiveness for auditors.

Quick Start

Ask the AI to walk you through an authorized ARP spoofing simulation against a test host on your lab VLAN, including enabling IP forwarding, running arpspoof bidirectionally, and verifying detection in your IDS.

Frequently Asked Questions about performing-arp-spoofing-attack-simulation

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I perform an ARP spoofing attack with arpspoof?▼

Enable IP forwarding with sysctl, then run arpspoof twice bidirectionally: once targeting the victim with the gateway IP and once targeting the gateway with the victim IP. Verify interception by capturing the victim's traffic with tcpdump on the attacker machine.

What is the difference between arpspoof and Ettercap for MITM attacks?▼

arpspoof is a simple dsniff tool requiring two separate processes for bidirectional poisoning, while Ettercap handles unified bidirectional spoofing with a single command using the -M arp:remote flag. Ettercap also adds credential capture and content filtering.

Why does my ARP spoofing test cause a denial of service instead of interception?▼

The most common cause is forgetting to enable IP forwarding with sysctl -w net.ipv4.ip_forward=1. Without forwarding, the attacker machine blackholes the victim's packets instead of relaying them, breaking connectivity rather than intercepting traffic.

Can Dynamic ARP Inspection block ARP spoofing attacks?▼

Yes, DAI validates ARP packets against the DHCP snooping binding database and drops invalid ones. However, testers should verify with request-based poisoning and ports lacking DHCP bindings, since some DAI configurations only validate ARP replies.

Is it legal to run ARP spoofing on a network?▼

ARP spoofing is only legal with explicit written authorization on networks you own or are contracted to test. This workflow requires documented authorization, an isolated lab or approved test window, and a rollback plan to restore ARP tables afterward.

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