1.    10 Aug 2017 #1
    Join Date : Aug 2017
    Posts : 3
    Windows 10 pro

    How isolate the second EThernet port


    I have a PC with two Ethernet ports. One is DHCP and used as main network connection. The second does not have IP address, is point-to-point connected to a packet generator and I use it as Wireshark capture port.

    Everything works fine, I can see all incoming packets. The problem is I get, also all broadcasts which my PC gets on the main network.

    How can I stop getting these broadcasts on the second Ethernet port ?
      My ComputerSystem Spec
  2.    10 Aug 2017 #2
    Join Date : Aug 2014
    Forever West
    Posts : 3,922
    Win10 Home and Pro, Win10 Insider Preview, Win7 Home, Linux Mint

    Not enough information. Most Desktops come with an onboard/built-in Ethernet port but additional cards can be added so we need to know about that. Dell is the Maker so knowing the Model Name and Model Number are important as Dell has been known to use the same Model Name on Desktops and Notebooks.
      My ComputerSystem Spec
  3.    10 Aug 2017 #3
    Join Date : Aug 2017
    Posts : 3
    Windows 10 pro
    Thread Starter

    DELL Precision 3620. There is only one native Ethernet port. The second is an USB to Ethernet.
      My ComputerSystem Spec
  4.    10 Aug 2017 #4
    Join Date : May 2015
    Central IL
    Posts : 4,229
    Mac OS Sierra

    Quote Originally Posted by papymuzo View Post
    DELL Precision 3620. There is only one native Ethernet port. The second is an USB to Ethernet.
    The USB does not create a network adapter. You have a single Ethernet port that is going to get used. As for the USB port, I am guessing that you have either a wifi adapter or created a bridge between it and the Ethernet port.
    Last edited by bro67; 11 Aug 2017 at 01:04.
      My ComputerSystem Spec
  5.    10 Aug 2017 #5
    Join Date : Aug 2017
    Posts : 3
    Windows 10 pro
    Thread Starter

    Really ? I must be dreaming...
    Click image for larger version. 

Name:	Network.jpg 
Views:	13 
Size:	12.0 KB 
ID:	148263
    The first is the native the second is the USB to Ethernet.
    What about the question I asked ?
      My ComputerSystem Spec
  6.    11 Aug 2017 #6
    Join Date : May 2015
    Central IL
    Posts : 4,229
    Mac OS Sierra

    Quote Originally Posted by papymuzo View Post
    Really ? I must be dreaming...
    Click image for larger version. 

Name:	Network.jpg 
Views:	13 
Size:	12.0 KB 
ID:	148263
    The first is the native the second is the USB to Ethernet.
    What about the question I asked ?
    First off, the build sheet that Dell included with that machine would state what is included, or go to the support page and enter the Service ID and it will show you what was installed on that machine before getting shipped out.

    If your unit has the Thunderbolt in it, that is what is called a Plugable Ethernet. Pretty soon Thunderbolt will knock out the standard HDMI interface, because Thunderbolt can deliver video data faster than HDMI. Also with USB-C having built in power for those devices that would charge off of it. It also means that older 1 & 2 versions of USB tech are going to go away. Just look at the firewire fiasco and a few others.
      My ComputerSystem Spec
  7.    11 Aug 2017 #7
    Join Date : Aug 2014
    Forever West
    Posts : 3,922
    Win10 Home and Pro, Win10 Insider Preview, Win7 Home, Linux Mint

    Quote Originally Posted by bro67 View Post
    First off, the build sheet that Dell included with that machine would state what is included, or go to the support page and enter the Service ID and it will show you what was installed on that machine before getting shipped out.
    Very true. Dell computers have 2 numbers on a sticker somewhere on the case or battery compartment on Notebooks, one is the Service Tag to get data for the model and the other is the Express Service Code for getting what was shipped, quite valuable information. The sticker will be white with black print or black with white or silver print. I have seen the Dell Service Tag number in BIOSes.
      My ComputerSystem Spec
  8.    11 Aug 2017 #8
    Join Date : May 2015
    Central IL
    Posts : 4,229
    Mac OS Sierra

    The Macbooks are the same way. Even better is that they have it set up to connect to Apple's servers to reinstall the OS, which in my case, the Early 2015 Macbook Airs came out when the previous before Sierra was released.

    I have a Dell that if you use their tool, it pulls the info and warranty info, which shows my wife's stepmom as the owner. I have the Dell and a HP Pavilion d4000 series sitting in the basement right now, with a Lenovo M58p unit in our home office. I want to swap out the motherboard in the full tower case, just cannot find one that does not have the PS2 ports or Parallel and Serial.
      My ComputerSystem Spec

 


Similar Threads
Thread Forum
Network adapter settings to isolate vm from host
What network adapter settings mean vms can communicate with each other but not with host? Thanks Vmware Workstation 10
Virtualization
How to use Ethernet Port to output internet
Hello all, this is my first post on this forum, but not my first forum post. I have an HP model 110-243w and to keep it simple, it does have built-in Wi-Fi and that works fine, but I would like to be able to plug something into the ethernet port on...
Network and Sharing
Solved New Motherboard - Ethernet port LEDs don't turn on.
In my previous mobo, the ethernet port's green and orange LEDs would always be lit. Even if the computer was powered off. But i noticed that this new mobo doesn't do this. I connected the network cable, but LEDs won't turn on. Is there...
Drivers and Hardware
Ethernet lan port problem
Hello, I have just installed windows 10 pro from windows 7 pro. The problem is that my Ethernet connection from my router used to work just fine on windows 7 and i have also tested it on another computer and it works fine also. My router is a ZTE...
Network and Sharing
Ethernet Port In The Wall?
So I have this port in my room where I use my computer. But I think it's not-live. Modem plugged into it doesn't work. Computer doesn't see anything in it... Is it possible I can get this thing hooked up and working? Anything I should try?
Chillout Room
Our Sites
Site Links
About Us
Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 10" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd
All times are GMT -5. The time now is 00:55.
Find Us
Twitter Facebook Google+ Ten Forums iOS App Ten Forums Android App



Windows 10 Forums