javanetwork-programmingwinpcapjpcap

How to extract the ip address from the captured packet in java in windows?

I am working on Network Monitoring. I wish to monitor the data and check the network usage details of the client PC from the admin PC. I have figured that I can fulfill this with the help of captured the packets of the browser as shown below. (This is the packet of FB request)

New packet1459690210:290428 /192.168.0.138->/31.13.79.220 protocol(6) priority(0) hop(128) offset(0) ident(2687) TCP 49281 > 443 seq(1708554008) win(258) ack 938747547 P

But, how can I extract the ipaddress of destination from the captured packets.

I wish to store the data in the database and display as below in the image.

I also wish to have data usage in MB. Many thanks for help.

enter image description here

Solution

  • (([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\d*

    This is what I got. This regex retrieves the ip addresses.

    I still have to figure out how to get the used MBs. If any one can help, I shall be greatful