Reading meter data through Java client

Hi

I am new to DLMS meter reading subject.

I wrote a java program to read the socket and able to read the meter data which pushed in regular intervals in plain text.

However, the other meter data are designed to be fetched from meter after hand shaking with modem as below: And i am able to get the reply from modem as "PMOK". After that I have to send command to meter (modem is made transparent) . Here I struck. I initiated a client java passing the modem ip and port and not getting result.

C:\Apache-Tomcat-8.5.32\webapps>java NewClass
It is now : Sun 2021.10.17 at 10:36:53 PM IST
Accepted Client Address - 10.254.0.207Meter IP:10.254.0.207port52968
Client Says :*STATUS,ONLINE,INST,#
Server Says : *PULLMODE#@01@
Waiting
false
false

Says : +++*STATUS,ONLINE,NOIN,#
Says :*PM@01@OK#*STATUS,OFFLINE,NOIN,#
Says : *PULLMODE#@01@ // From HES to Modem
Waiting
true
Server Says >>>: *PM@01@OK#*STATUS,OFFLINE,NOIN,# // From Modem to HES
true
////////////////////////////////////////////////
In other Command prompt run the following:

C:\Apache-Tomcat-8.5.32\webapps>java -jar gurux.dlms.client.example.java.jar -h 10.254.0.207 -a Low -P PRIDE -r sn -t Verbose -p 52968 -c 16 -s 1
Connect using network connection gurux.net.GXNet@19469ea2
Authentication: Low
ClientAddress: 0x10
ServerAddress: 0x1
Connection refused: connect
///////////////////////////////////////////////////

I thought if the modem sends ":*PM@01@OK#" , I can initiate the client program from the java application to get reading of meters . Is it in right direction?

Guidance is requested to proceed further.