David Brownell submitted a new applet, zcip, based on RFC 3927. This is

version 0418b.  It compiled.

examples/zcip.script

@@ -0,0 +1,38 @@
+#!/bin/sh
+
+# only for use as a "zcip" callback script
+if [ "x$interface" = x ]
+then
+	exit 1
+fi
+
+# zcip should start on boot/resume and various media changes
+case "$1" in
+init)
+	# for now, zcip requires the link to be already up,
+	# and it drops links when they go down.  that isn't
+	# the most robust model...
+	exit 0
+	;;
+config)
+	if [ "x$ip" = x ]
+	then
+		exit 1
+	fi
+	# remember $ip for $interface, to use on restart
+	if [ "x$IP" != x -a -w "$IP.$interface" ]
+	then
+		echo $ip > "$IP.$interface"
+	fi
+	exec ip address add dev $interface \
+		scope link local "$ip/16" broadcast +
+	;;
+deconfig)
+	if [ x$ip = x ]
+	then
+		exit 1
+	fi
+	exec ip address del dev $interface local $ip
+	;;
+esac
+exit 1