Wireshark detect highly suspicious network activity on my system. As you can see in the attached screen capture, broadcast traffic repeatedly sends weird packet information and suspicious requests, such as:

[TCP retransmission] [TCP spurious retransmission] [TCP fast retransmission] 443 > 449560 [RST, ACK] [TCP out-of-order]

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In addition to Wireshark, I installed xARP software, and it consistently sends me alerts regarding potential ARP attacks, like:

"DirectedRequestFilter: targeted request. destination mac of arp request not set to broadcast/invalid address"

I am new to Wireshark. Could anyone help me to decipher this traffic activity and tell me if it's indication of ARP spoofing attack? And, what can I do to prevent it?

closed as unclear what you're asking by schroeder Feb 20 '18 at 10:45

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  • 7
    Neither of the screenshots you posted show any ARP packets... – tlng05 Aug 7 '16 at 14:31
  • This looks rather like so called lag e.g. slow networks. – Aria Aug 7 '16 at 16:02