diff --git a/roles/prometheus/templates/prometheus/alert.rules.yml.j2 b/roles/prometheus/templates/prometheus/alert.rules.yml.j2
index 7a9cf1ce4bddfb1053eca817b3ac1b4d4d59e671..9c307ff865d738b41043c7430c1b5bb119eac137 100644
--- a/roles/prometheus/templates/prometheus/alert.rules.yml.j2
+++ b/roles/prometheus/templates/prometheus/alert.rules.yml.j2
@@ -348,4 +348,12 @@ groups:
     annotations:
       summary: "{{ $labels.disk }} sur {{ $labels.instance }} a {{ $value }} secteurs réalloués"
 
+  - alert: TooManyUDPErrors
+    expr: irate(node_netstat_Udp_InErrors[5m]) > 100
+    for: 2m
+    labels:
+      severity: warning
+    annotations:
+      summary: "{{ $labels.instance }} a plus de {{ $value }} connexions UDP en erreur. Quelque chose spam!"
+
 {% endraw %}