diff --git a/api/v1alpha1/oob_types.go b/api/v1alpha1/oob_types.go
index 0bac375d..0b32899d 100644
--- a/api/v1alpha1/oob_types.go
+++ b/api/v1alpha1/oob_types.go
@@ -20,9 +20,11 @@ type OOBSpec struct {
 
 	EndpointRef v1.LocalObjectReference `json:"endpointRef"`
 
-	SecretRef v1.LocalObjectReference `json:"secretRef"`
+	//+optional
+	SecretRef v1.LocalObjectReference `json:"secretRef,omitempty"`
 
-	Protocol Protocol `json:"protocol"`
+	//+optional
+	Protocol Protocol `json:"protocol,omitempty"`
 
 	//+optional
 	Flags map[string]string `json:"flags,omitempty"`
diff --git a/client/openapi/zz_generated.openapi.go b/client/openapi/zz_generated.openapi.go
index f1749ea4..099fb97d 100644
--- a/client/openapi/zz_generated.openapi.go
+++ b/client/openapi/zz_generated.openapi.go
@@ -1148,7 +1148,7 @@ func schema_ironcore_dev_metal_api_v1alpha1_OOBSpec(ref common.ReferenceCallback
 						},
 					},
 				},
-				Required: []string{"macAddress", "endpointRef", "secretRef", "protocol"},
+				Required: []string{"macAddress", "endpointRef"},
 			},
 		},
 		Dependencies: []string{
diff --git a/config/crd/bases/metal.ironcore.dev_oobs.yaml b/config/crd/bases/metal.ironcore.dev_oobs.yaml
index f66aa777..75949da4 100644
--- a/config/crd/bases/metal.ironcore.dev_oobs.yaml
+++ b/config/crd/bases/metal.ironcore.dev_oobs.yaml
@@ -125,8 +125,6 @@ spec:
             required:
             - endpointRef
             - macAddress
-            - protocol
-            - secretRef
             type: object
           status:
             description: OOBStatus defines the observed state of OOB