Detected TCP SYN-and-FIN packets attacked and dropped packets

Detected TCP SYN-and-FIN packets attacked and dropped packets

Detected TCP SYN-and-FIN packets attacked and dropped packets
Detected TCP SYN-and-FIN packets attacked and dropped packets
2024-03-13 06:06:59 - last edited 2024-03-15 01:18:36
Model: ER605 (TL-R605)  
Hardware Version: V1
Firmware Version: 1.3.0 Build 20230511 Rel.51317

Hi good day,

 

I'm afraid regarding on this warning on my system log. "Detected TCP SYN-and-FIN packets attacked and dropped packets"

 

Please enlighten us regarding on this and also how to prevent it.

 

 

 

 

Thank you

 

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1 Accepted Solution
Re:Detected TCP SYN-and-FIN packets attacked and dropped packets-Solution
2024-03-13 07:14:46 - last edited 2024-03-15 01:18:36

Hi @ken22 

Thanks for posting in our business forum.

1. Update your firmware.

2. Explained here. If this does not show up the IP address, you might need to Wireshark and find out what device is sending this repeatedly.

Best Regards! If you are new to the forum, please read: Howto - A Guide to Use Forum Effectively. Read Before You Post. Look for a model? Search your model NOW Beta firmware got some NEW features! Subscribe for the latest update!Download Beta Here☚ ☛ ★ Configuration Guide ★ ☚ ☛ ★ Knowledge Base ★ ☚ ☛ ★ Troubleshooting Manual ★ ☚ (Disclaimer: Short links are used above solely for guidance to TP-Link subdomains and are safe and tracker-free. Exercise caution with short links from non-official members on forums. We are not liable for external content or damage from non-official members' link use.)
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#2
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Re:Detected TCP SYN-and-FIN packets attacked and dropped packets-Solution
2024-03-13 07:14:46 - last edited 2024-03-15 01:18:36

Hi @ken22 

Thanks for posting in our business forum.

1. Update your firmware.

2. Explained here. If this does not show up the IP address, you might need to Wireshark and find out what device is sending this repeatedly.

Best Regards! If you are new to the forum, please read: Howto - A Guide to Use Forum Effectively. Read Before You Post. Look for a model? Search your model NOW Beta firmware got some NEW features! Subscribe for the latest update!Download Beta Here☚ ☛ ★ Configuration Guide ★ ☚ ☛ ★ Knowledge Base ★ ☚ ☛ ★ Troubleshooting Manual ★ ☚ (Disclaimer: Short links are used above solely for guidance to TP-Link subdomains and are safe and tracker-free. Exercise caution with short links from non-official members on forums. We are not liable for external content or damage from non-official members' link use.)
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