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performing-arp-spoofing-attack-simulation

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Simulates ARP spoofing attacks in authorized lab or pentest environments using arpspoof, Ettercap, and Scapy to demonstrate man-in-the-middle risks, test network detection capabilities, and validate ARP inspection countermeasures.

internal/tools/skills/data/network-security/performing-arp-spoofing-attack-simulation/SKILL.md

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Network or broad shell
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Nov 9, 2026

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Nov 9, 2026
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Apache-2.0

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# Performing ARP Spoofing Attack Simulation

## When to Use

- Testing whether network switches and infrastructure properly implement Dynamic ARP Inspection (DAI)
- Demonstrating man-in-the-middle attack risks to stakeholders during authorized security assessments
- Validating that network monitoring tools (IDS/IPS, SIEM) detect ARP cache poisoning attempts
- Assessing the effectiveness of port security, 802.1X, and VLAN segmentation controls
- Training SOC analysts to recognize ARP spoofing indicators in network traffic

**Do not use** on production networks without explicit written authorization and a rollback plan, against networks carrying critical or life-safety traffic, or as a denial-of-service attack vector.

## Most Often Missed & How to Confirm

- **Bidirectional poisoning:** spoofing only the victim (not the gateway) yields half-duplex MITM and silent failure. Poison both directions (`arpspoof -t victim gw` AND `-t gw victim`) or use `ettercap -M arp:remote`.
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