ARP code

[Nattapong Limprungpattanakit]

Hello.

 

I have a problem can not run. 

I'm not understand.

Help me please.

 

How to use and detail ?

Thanks.

 

#!/usr/bin/python2.5
import py_net_libs

class dissect:

    def __init__(self,pkt,offset):

       self.pkt, self.offset = py_net_libs.arp_dissect(pkt,offset)
       self.next = None

    def format(self):

       mac_s, mac_d, ip_src, ip_dst = '','','',''
       for n in (self.pkt[5]): mac_s  = mac_s + '%02x:' % n
       for n in (self.pkt[7]): mac_d  = mac_d + '%02x:' % n
       for n in (self.pkt[6]): ip_src = ip_src + '%d.'   % n
       for n in (self.pkt[8]): ip_dst = ip_dst + '%d.'   % n

       return [ 'HW Type = 0x%02x'           % self.pkt[0],
                'Protocol Type = 0x%x'       % self.pkt[1],
                'HW Address Lenght = %d'     % self.pkt[2],
                'Procol Address Length = %d' % self.pkt[3],
                'OP code = %x'               % self.pkt[4],
                'Sender HW Addr = %s'        % mac_s [:-1],
                'Sender IP Addr = %s'        % ip_src[:-1],
                'Target HW Addr = %s'        % mac_d [:-1],
                'Target IP Addr = %s'        % ip_dst[:-1] ]

 		 	   		  
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