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I am trying to get the destination IP (remote host) addresses connected to my machine that are using UDP protocol but i get Null results using psutil

the script I wrote

import psutil

def GetServerIP():
    PROCNAME = "theprocessname.exe"
    for proc in psutil.process_iter():
        if proc.name() == PROCNAME:
            pinfo = proc.as_dict(attrs=['pid', 'name', 'create_time'])
            pidnumber = pinfo["pid"]
            print("Process is runnging on number: %r" % (pidnumber))           
    for connection in psutil.net_connections(kind='udp4'):
        if pidnumber in connection:
            print(connection.raddr)

GetServerIP()

The script works for TCP connections but gives nothing on UDP connections that are established on my local machine.

I read through psutil documentation however still cant figure out why it gives no results back on UDP

I can verify there are established UDP packets being sent and received using wireshark

if psutil does not work well with UDP is there an alternative solution

Leo Daa Vinci
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    UDP "connections" are not established like TCP connections. – Klaus D. Oct 06 '19 at 04:42
  • Have you tried `kind='udp'` and `kind='all'` or `proc.connections(kind="all")`? – stovfl Oct 06 '19 at 12:56
  • thank you guys for your reply. seems like psutil was not the solution , I did try kind='udp' and it seems like UDP connections are not established like TCP. Instead I switched to python scapy to capture UDP packets and it helped me get the destination IP address – Leo Daa Vinci Oct 20 '19 at 22:20
  • There is no such thing as a UDP connection. – user207421 Oct 21 '19 at 00:16

1 Answers1

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It seems like psutil was not the right solution and path to take, turned out UDP connections are not established like TCP, so instead I switched to python scapy to capture UDP packets and it helped me resolve the destination IP address

Leo Daa Vinci
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