Solved

Wireshark

Posted on 2016-09-27
4
100 Views
Last Modified: 2016-10-12
I tried to do port mirrorig and then use Wireshark.
I got this. But i have no clue who 10.0.0.29 is, it isent in my DHCP server. It does this all the time. Non stop reassembled PDU.

Can you help?
Unavngivet.jpg
0
Comment
Question by:Mike Kristensen
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
4 Comments
 
LVL 19

Expert Comment

by:Mal Osborne
ID: 41819252
I am assuming that 10.0.0.1/24 is your local subnet? If so, try pinging 10.0.0.29, then type arp -g at a DOS prompt on a Windows box. This will spit out the MAC address of the device on 10.0.0.29.
Now, go to the link below, and enter that MAC address. This will give you some information about the manufacturer of the device. (You could also sniff the MAC address with Wireshark of course.)

http://macvendorlookup.com/

It may or may not provide a useful clue.
1
 

Author Comment

by:Mike Kristensen
ID: 41825276
So i tried this and tried to read more up on this..... I cant ping the address. The address is not set by the router.

10.0.0.1/24 is on 1 Ethernet port. 192.168.0.1 is on another.


I will keep recording more, but cant find anything for now.
0
 
LVL 24

Accepted Solution

by:
Dirk Kotte earned 500 total points
ID: 41829295
some network-clients don't answer the ping request, but they have to answer the arp-request.
Ping the device and than check the arp table (windows: arp -a).
Otherwise take your wireshark capture, expand the packet details, take the MAC from here.

Check the MAC with link provided by Malmensa.

the destination address points to box.com. this is a file storage like dropbox or sharefile. possible this helps you to identify the source.
0
 

Author Closing Comment

by:Mike Kristensen
ID: 41839876
Problem just dissapered
0

Featured Post

Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

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

If you're not part of the solution, you're part of the problem.   Tips on how to secure IoT devices, even the dumbest ones, so they can't be used as part of a DDoS botnet.  Use PRTG Network Monitor as one of the building blocks, to detect unusual…
WARNING:   If you follow the instructions here, you will wipe out your VTP and VLAN configurations.  Make sure you have backed up your switch!!! I recently had some issues with a few low-end Cisco routers (RV325) and I opened a case with Cisco TA…
Viewers will learn how to connect to a wireless network using the network security key. They will also learn how to access the IP address and DNS server for connections that must be done manually. After setting up a router, find the network security…
Get a first impression of how PRTG looks and learn how it works.   This video is a short introduction to PRTG, as an initial overview or as a quick start for new PRTG users.
Suggested Courses

623 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