In tomcat context.xml add ip to following
<Valve className="org.apache.catalina.valves.RemoteAddrValve" deny="137.220.197.141|20.213.57.209|103.77.246.251|40.69.33.92|103.139.17.124|76.164.207.214" />
restart tomcat
on proxy server
add ip to file - /tmp/ipblocklist.ips
restart ha proxy