diff --git a/include/linux/irda.h b/include/linux/irda.h
index 35911bd..8e37357 100644
--- a/include/linux/irda.h
+++ b/include/linux/irda.h
@@ -242,6 +242,7 @@
 /* IrDA modes */
 #define IRDA_MODE_PRIMARY   0x1
 #define IRDA_MODE_SECONDARY 0x2
+#define IRDA_MODE_MONITOR   0x4
 
 #endif /* KERNEL_IRDA_H */
 
diff --git a/net/irda/irlap_frame.c b/net/irda/irlap_frame.c
index 3013c49..25a3444 100644
--- a/net/irda/irlap_frame.c
+++ b/net/irda/irlap_frame.c
@@ -101,6 +101,13 @@
 
 	irlap_insert_info(self, skb);
 
+	if (unlikely(self->mode & IRDA_MODE_MONITOR)) {
+		IRDA_DEBUG(3, "%s(): %s is in monitor mode\n", __FUNCTION__,
+			   self->netdev->name);
+		dev_kfree_skb(skb);
+		return;
+	}
+
 	dev_queue_xmit(skb);
 }