diff --git a/doc/doxygen/main_page.h b/doc/doxygen/main_page.h
index 6486a17d..bdb177a3 100644
--- a/doc/doxygen/main_page.h
+++ b/doc/doxygen/main_page.h
@@ -38,6 +38,11 @@
  * https://savannah.nongnu.org/bugs/?group=lwip
  */
 
+/**
+ * @page ports Example ports
+ * - RTEMS and FreeRTOS: https://sourceforge.net/p/ulan/lwip-omk/ci/omk-devel/tree/ports/os/
+ */
+
 /**
  * @defgroup lwip_nosys Mainloop mode ("NO_SYS")
  * @ingroup lwip