How to extract a Payload data and IP addresses from a captured packet

[neeru29]

I'm using Pcapy and impacket module for packet sniffer.
I'm able to capture the whole data in a variable and display it.
I want extract the IP addresses , Port no's and Payload data into separate variable and display it.

code is as follows:

import sys
import string
from threading import Thread

import pcapy
from pcapy import findalldevs, open_live
import impacket
from impacket.ImpactDecoder import EthDecoder, LinuxSLLDecoder


class DecoderThread(Thread):
    def __init__(self, pcapObj):
        datalink = pcapObj.datalink()
        if pcapy.DLT_EN10MB == datalink:
            self.decoder = EthDecoder()
        elif pcapy.DLT_LINUX_SLL == datalink:
            self.decoder = LinuxSLLDecoder()
        else:
            raise Exception("Datalink type not supported: " % datalink)

        self.pcap = pcapObj
        Thread.__init__(self)

    def run(self):
        self.pcap.loop(0, self.packetHandler)

    def packetHandler(self, hdr, data):
        d = self.decoder.decode(data)
	print d

def main(filter):
    dev = 'eth0'
    p = open_live(dev, 1500, 0, 100)
    p.setfilter(filter)
    print "Listening on %s: net=%s, mask=%s, linktype=%d" % (dev, p.getnet(), p.getmask(), p.datalink())
    DecoderThread(p).start()

filter=' '
main(filter)

How can i do that....

Thanks....