Solved

Need to measure the UDP traffic between two nodes on a network using WireShark

Posted on 2009-04-08
2
950 Views
Last Modified: 2012-05-06
Hi,

I'm fairly new to Wireshark, but understand how to set filters etc.

I need to measure the comms traffic between two applications on a network, that communicate via UDP.

The problem is, with UDP, the packets obviously don't have destination IP addresses, so what kind of filter can I write?

I have considered installing the application on the receiving node, but for reasons I won't explain, this is not an option. I intend to use wireshark on a laptop plugged into to a spare port on a switch.

Can anyone advise on how I might achieve this?

Thanks
0
Comment
Question by:Cognize
2 Comments
 
LVL 2

Accepted Solution

by:
chuchyyy earned 500 total points
ID: 24096097
Have you try to plug the sniffer on the interface that receive the UDP traffic ? And then, set the filter  to protocol "UDP" ? Do you know the application that communicate via UDP in your network or do you want to know, specifically, that ?
0
 
LVL 2

Author Comment

by:Cognize
ID: 24096127
Sorry, my mistake, the UDP packets do have source and destination addresses.

And you are correct, it appears that I will have to install the sniffer on the node that recieves the comms.

Thanks for your input.
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

ADCs have gained traction within the last decade, largely due to increased demand for legacy load balancing appliances to handle more advanced application delivery requirements and improve application performance.
When it comes to security, there are always trade-offs between security and convenience/ease of administration. This article examines some of the main pros and cons of using key authentication vs password authentication for hosting an SFTP server.
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
Here's a very brief overview of the methods PRTG Network Monitor (https://www.paessler.com/prtg) offers for monitoring bandwidth, to help you decide which methods you´d like to investigate in more detail.  The methods are covered in more detail in o…

823 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question