diff --git a/README.md b/README.md
index 5b0dbb9349..9291878d5d 100644
--- a/README.md
+++ b/README.md
@@ -70,6 +70,8 @@ curl -O -L https://github.com/containernetworking/plugins/releases/download/v1.5
 tar -C /opt/cni/bin -xzf cni-plugins-linux-$ARCH-v1.5.1.tgz
 ```
 
+Flannel requires the br_netfilter module to start from version 1.30 kubeadm doesn't check if the module is installed and Flannel will not rightly start in case the module is missing.
+
 ## Getting started on Docker
 
 flannel is also widely used outside of kubernetes. When deployed outside of kubernetes, etcd is always used as the datastore. For more details integrating flannel with Docker see [Running](Documentation/running.md)
diff --git a/main.go b/main.go
index 70afde36ca..b1bb815bce 100644
--- a/main.go
+++ b/main.go
@@ -261,6 +261,20 @@ func main() {
 		os.Exit(1)
 	}
 
+	// From Kubernetes 1.30 kubeadm doesn't check if the br_netfilter module is load and in case it's missing Flannel wrongly starts
+	if config.EnableIPv4 {
+		if _, err = os.Stat("/proc/sys/net/bridge/bridge-nf-call-iptables"); os.IsNotExist(err) {
+			log.Error("Failed to check br_netfilter: ", err)
+			os.Exit(1)
+		}
+	}
+	if config.EnableIPv6 {
+		if _, err = os.Stat("/proc/sys/net/bridge/bridge-nf-call-ip6tables"); os.IsNotExist(err) {
+			log.Error("Failed to check br_netfilter: ", err)
+			os.Exit(1)
+		}
+	}
+
 	// Work out which interface to use
 	var extIface *backend.ExternalInterface