diff --git a/kubernetes/infrastructure/network-policies/crowdsec-ns.yaml b/kubernetes/infrastructure/network-policies/crowdsec-ns.yaml
index abc4c481..ce52e359 100644
--- a/kubernetes/infrastructure/network-policies/crowdsec-ns.yaml
+++ b/kubernetes/infrastructure/network-policies/crowdsec-ns.yaml
@@ -23,3 +23,53 @@ spec:
     - fromEntities:
         - host
         - remote-node
+    # ICMP — all standard ICMPv4 + ICMPv6 from any cluster pod. See
+    # home-assistant-ns.yaml for the rationale. INGRESS ONLY: do NOT
+    # add an egress section to this CNP — that's what broke attempt
+    # 66dbe9f (it transitioned this ns from default-allow egress to
+    # egress-enforced-with-only-ICMP, killing DNS / apiserver / world).
+    - fromEndpoints:
+        - matchExpressions:
+            - key: io.kubernetes.pod.namespace
+              operator: Exists
+      icmps:
+        - fields:
+            - { type: 0,   family: IPv4 }
+            - { type: 3,   family: IPv4 }
+            - { type: 4,   family: IPv4 }
+            - { type: 5,   family: IPv4 }
+            - { type: 8,   family: IPv4 }
+            - { type: 9,   family: IPv4 }
+            - { type: 10,  family: IPv4 }
+            - { type: 11,  family: IPv4 }
+            - { type: 12,  family: IPv4 }
+            - { type: 13,  family: IPv4 }
+            - { type: 14,  family: IPv4 }
+            - { type: 15,  family: IPv4 }
+            - { type: 16,  family: IPv4 }
+            - { type: 17,  family: IPv4 }
+            - { type: 18,  family: IPv4 }
+            - { type: 30,  family: IPv4 }
+            - { type: 1,   family: IPv6 }
+            - { type: 2,   family: IPv6 }
+            - { type: 3,   family: IPv6 }
+            - { type: 4,   family: IPv6 }
+            - { type: 128, family: IPv6 }
+            - { type: 129, family: IPv6 }
+            - { type: 130, family: IPv6 }
+            - { type: 131, family: IPv6 }
+            - { type: 132, family: IPv6 }
+            - { type: 133, family: IPv6 }
+            - { type: 134, family: IPv6 }
+            - { type: 135, family: IPv6 }
+            - { type: 136, family: IPv6 }
+            - { type: 137, family: IPv6 }
+            - { type: 138, family: IPv6 }
+            - { type: 141, family: IPv6 }
+            - { type: 142, family: IPv6 }
+            - { type: 143, family: IPv6 }
+            - { type: 148, family: IPv6 }
+            - { type: 149, family: IPv6 }
+            - { type: 151, family: IPv6 }
+            - { type: 152, family: IPv6 }
+            - { type: 153, family: IPv6 }