--- ip.8.orig	2012-03-03 09:56:03.505518778 +0100
+++ ip.8	2012-03-03 10:06:17.685519961 +0100
@@ -1103,6 +1103,13 @@
 this string must coincide with the name of the device or must be prefixed
 with the device name followed by colon.
 
+Note: 
+.I NAME
+must be shorter than
+.BR IF_NAMESIZE
+(usually 16) characters. That is defined in
+.BR "/usr/include/net/if.h" .
+
 .TP
 .BI scope " SCOPE_VALUE"
 the scope of the area where this address is valid.