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How to detect ARP spoofing and Man-in-the-Middle (MITM) attacks on local subnets using Wireshark?

Network Exploitation & Wireshark · 2 saved versions

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Version 1 (Edit)

Edited by Aravind Patel · Aug 23, 2026 6:23 PM

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Title snapshot

How to detect ARP spoofing and Man-in-the-Middle (MITM) attacks on local subnets using Wireshark?

Summary snapshot
Identifying duplicate IP-MAC address mappings and unsolicited ARP reply broadcasts.
Content snapshot
### ARP Spoofing Detection Look for `Duplicate IP address detected` warnings in Wireshark logs triggered by conflicting MAC hardware addresses claiming the local gateway IP.
Source snapshot

https://developers.google.com/search/docs

Version 1 (Original Post)

Published by Aravind Patel · Aug 9, 2026 5:37 AM

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Post originally created and published to the Global Hub.

Original Title

How to detect ARP spoofing and Man-in-the-Middle (MITM) attacks on local subnets using Wireshark?

Original Summary
Identifying duplicate IP-MAC address mappings and unsolicited ARP reply broadcasts.
Original Content
### ARP Spoofing Detection Look for `Duplicate IP address detected` warnings in Wireshark logs triggered by conflicting MAC hardware addresses claiming the local gateway IP.
Original Sources

https://developers.google.com/search/docs