Improve dualStack log

pkg/agent/flannel/flannel.go

@@ -177,12 +177,11 @@ func LookupExtInterface(iface *net.Interface, netMode int) (*backend.ExternalInt
 		if err != nil {
 			return nil, fmt.Errorf("failed to find IPv4 address for interface %s", iface.Name)
 		}
-		logrus.Infof("The interface %s with ipv4 address %s will be used by flannel", iface.Name, ifaceAddr[0])
 		ifacev6Addr, err = ip.GetInterfaceIP6Addrs(iface)
 		if err != nil {
 			return nil, fmt.Errorf("failed to find IPv6 address for interface %s", iface.Name)
 		}
-		logrus.Infof("Using dual-stack mode. The ipv6 address %s will be used by flannel", ifacev6Addr[0])
+		logrus.Infof("Using dual-stack mode. The interface %s with ipv4 address %s and ipv6 address %s will be used by flannel", iface.Name, ifaceAddr[0], ifacev6Addr[0])
 	default:
 		ifaceAddr = append(ifaceAddr, nil)
 		ifacev6Addr = append(ifacev6Addr, nil)