diff -up man-pages-3.45/man7/ip.7.orig man-pages-3.45/man7/ip.7
--- man-pages-3.45/man7/ip.7.orig	2012-12-21 15:27:18.549544545 +0100
+++ man-pages-3.45/man7/ip.7	2012-12-21 15:27:18.552544501 +0100
@@ -98,12 +98,11 @@ For
 you may specify a valid IANA IP protocol defined in
 RFC\ 1700 assigned numbers.
 .PP
-.\" FIXME ip current does an autobind in listen, but I'm not sure
-.\" if that should be documented.
 When a process wants to receive new incoming packets or connections, it
 should bind a socket to a local interface address using
 .BR bind (2).
-Only one IP socket may be bound to any given local (address, port) pair.
+In this case, only one IP socket may be bound to any given local
+(address, port) pair.
 When
 .B INADDR_ANY
 is specified in the bind call, the socket will be bound to
@@ -111,10 +110,14 @@ is specified in the bind call, the socke
 local interfaces.
 When
 .BR listen (2)
-or
+is called on an unbound socket, the socket is automatically bound
+to a random free port with the local address set to
+.BR INADDR_ANY .
+When
 .BR connect (2)
-are called on an unbound socket, it is automatically bound to a
-random free port with the local address set to
+is called on an unbound socket, the socket is automatically bound
+to a random free port or an usable shared port with the local address
+set to
 .BR INADDR_ANY .
 
 A TCP local socket address that has been bound is unavailable for