Now, the client can modify the vrrp ip.
modified:   clients/opennaas-gui-vcpe/src/main/java/org/opennaas/gui/vcpe/controllers/VCPENetworkController.java
modified:   clients/opennaas-gui-vcpe/src/main/resources/log4j.xml
modified:   clients/opennaas-gui-vcpe/src/main/webapp/WEB-INF/views/vcpeNetwork/updateIpsVCPENetwork.jsp