[NeMo-DDoS-List] FW: [Geant NeMo] #256221 END WARN: IUCC (AS378) - "3 alerts" [Customer] [Email_Analysis] [IUCC]

[Hank Nussbacher]

________________________________________
From: nemo-ddos at host.geant.org <nemo-ddos at host.geant.org>
Sent: Saturday, July 18, 2026 4:58:13 AM (UTC+02:00) Jerusalem
To: soc at geant.org
Subject: [Geant NeMo] #256221 END WARN: IUCC (AS378) - "3 alerts" [Customer] [Email_Analysis] [IUCC]

Observed <= 0 alerts, closing.Alert closed.

Alert ID: 256221
Status: Closed
Severity: Warning

Start Time: 2026-07-18 01:35:51
End Time: 2026-07-18 01:58:01
Start Time (Europe/Berlin): 2026-07-18 03:35:51
End Time (Europe/Berlin): 2026-07-18 03:58:01
Duration: 23 min

First Event Seen: 2026-07-18 01:32:00
Last Event Seen: 2026-07-18 01:48:00
Event Count: 15

Trigger: Multiple Alerts (ID 31)

Alert Description:
Aggregated 3 alerts.

Affected Objects:
        Type              Name       Event Count
---------------------------------------------------
Autonomoussystem    IUCC (AS378)          15

Child Alerts:
  Alert ID                    Description
--------------------------------------------------------------
256225      High packet rate.
256219      Abnormal ratio of SYN packets to ACK packets.
256220      High SYN packet rate.


Further Details:
https://secondary.nemo.geant.org/alerts/details/256221/

All times expressed in UTC.