Is working what is jboss.modcluster.proxyList param when start jboss eap

According to the Load Balancer Configuration Tool, when you do not use advertise, you are asked to run -Djboss.modcluster.proxyList = 127.0.0.1: 6666 in the execution parameter. Is this correct?

<img src="/sites/profiles/files/discussion/images/2017-09/lb_tool.png" width="1073" height="241" alt="" />

It does not seem to work unless you put it in the xml file directly like below.
~~~
<Mod-cluster-config advertise-socket = "modcluster" connector = "ajp" proxyList = "127.0.0.1:6666">
~~~

Is the Load Balancer Configuration Tool correct?