diff --git a/lispref/ChangeLog b/lispref/ChangeLog
index fdc2957892ee1272f642b0128389a02570ff69d8..6904ca54e6a27237e14ceab833b44b4bcacd2877 100644
--- a/lispref/ChangeLog
+++ b/lispref/ChangeLog
@@ -1,3 +1,8 @@
+2007-10-01  Eli Zaretskii  <eliz@gnu.org>
+
+	* processes.texi (Misc Network): Note that these functions are
+	supported only on some systems.
+
 2007-09-19  Richard Stallman  <rms@gnu.org>
 
 	* display.texi (Display Property): Explain multiple display specs.
diff --git a/lispref/processes.texi b/lispref/processes.texi
index 81cac3e50466a20b85d2a18081ac33f2aea6895a..40bec387e0cece421febe2a96cb6fa16b2cd5423 100644
--- a/lispref/processes.texi
+++ b/lispref/processes.texi
@@ -2027,7 +2027,8 @@ That particular network option is supported by
 @section Misc Network Facilities
 
   These additional functions are useful for creating and operating
-on network connections.
+on network connections.  Note that they are supported only on some
+systems.
 
 @defun network-interface-list
 This function returns a list describing the network interfaces