[NeMo-DDoS-List] FW: [Geant NeMo] #241889 UPD WARN: IUCC (AS378) - "4 alerts" [Customer] [IUCC] [Email_Analysis]

[Hank Nussbacher]

________________________________________
From: nemo-ddos at host.geant.org <nemo-ddos at host.geant.org>
Sent: Wednesday, April 15, 2026 1:29:05 AM (UTC+02:00) Jerusalem
To: soc at geant.org
Subject: [Geant NeMo] #241889 UPD WARN: IUCC (AS378) - "4 alerts" [Customer] [IUCC] [Email_Analysis]

Aggregated 4 alerts. Upgraded to severity Warning.

Alert ID: 241889
Status: Open
Severity: Warning

Start Time: 2026-04-14 22:27:52
End Time: ongoing
Start Time (Europe/Berlin): 2026-04-15 00:27:52
End Time (Europe/Berlin): ongoing
Duration: 2 min

First Event Seen: 2026-04-14 22:25:00
Last Event Seen: 2026-04-14 22:27:00
Event Count: 9

Trigger: Multiple Alerts (ID 31)

Alert Description:
Aggregated 4 alerts.

Affected Objects:
        Type              Name       Event Count
---------------------------------------------------
Autonomoussystem    IUCC (AS378)          9

Child Alerts:
  Alert ID                    Description
--------------------------------------------------------------
241888      High SYN packet rate.
241890      High TCP packet rate.
241891      High packet rate.
241887      Abnormal ratio of SYN packets to ACK packets.


Further Details:
https://secondary.nemo.geant.org/alerts/details/241889/

All times expressed in UTC.