diff --git a/master/eoe_request.c b/master/eoe_request.c
index a33e7c69..68b6d25b 100644
--- a/master/eoe_request.c
+++ b/master/eoe_request.c
@@ -1,6 +1,6 @@
 /*****************************************************************************
  *
- *  Copyright (C) 2006-2014  Florian Pose, Ingenieurgemeinschaft IgH
+ *  Copyright (C) 2006-2024  Florian Pose, Ingenieurgemeinschaft IgH
  *
  *  This file is part of the IgH EtherCAT Master.
  *
@@ -61,3 +61,20 @@ void ec_eoe_request_init(
 }
 
 /****************************************************************************/
+
+/** Checks if EoE request has something to set.
+ */
+int ec_eoe_request_valid(
+        const ec_eoe_request_t *req /**< EoE request. */
+        )
+{
+    return
+        req->mac_address_included ||
+        req->ip_address_included ||
+        req->subnet_mask_included ||
+        req->gateway_included ||
+        req->dns_included ||
+        req->name_included;
+}
+
+/****************************************************************************/
diff --git a/master/eoe_request.h b/master/eoe_request.h
index 4b9048a4..c1dcb478 100644
--- a/master/eoe_request.h
+++ b/master/eoe_request.h
@@ -63,6 +63,7 @@ typedef struct {
 /****************************************************************************/
 
 void ec_eoe_request_init(ec_eoe_request_t *);
+int ec_eoe_request_valid(const ec_eoe_request_t *);
 
 /****************************************************************************/