Jump to content


 


Register a free account to unlock additional features at BleepingComputer.com
Welcome to BleepingComputer, a free community where people like yourself come together to discuss and learn how to use their computers. Using the site is easy and fun. As a guest, you can browse and view the various discussions in the forums, but can not create a new topic or reply to an existing one unless you are logged in. Other benefits of registering an account are subscribing to topics and forums, creating a blog, and having no ads shown anywhere on the site.


Click here to Register a free account now! or read our Welcome Guide to learn how to use this site.

Photo

ARP is running in the local network


  • Please log in to reply
3 replies to this topic

#1 lordviguro

lordviguro

  • Members
  • 2 posts
  • OFFLINE
  •  
  • Local time:10:37 AM

Posted 15 August 2017 - 01:40 AM

This issue started when our third party support changed the subnet (192.168.0.0/23) of our network since there are few IP addresses left. All of our workstations here are currently running on Windows 7 64-bit and now some of it have ARP.exe running on the task manager and it consumes a huge amount of CPU usage.

We've already restarted our unmanaged Cisco Switches to flush the ARP tables but still the issue persist. No VLANs in the switches.

We have 170 workstations here and 20 or more workstations have the issue. 

Hope you guys help me out here.



BC AdBot (Login to Remove)

 


#2 Wand3r3r

Wand3r3r

  • Members
  • 2,027 posts
  • OFFLINE
  •  
  • Local time:07:37 PM

Posted 15 August 2017 - 09:20 AM

What is everyone pointed to for DNS? You should have a local dns server.

#3 lordviguro

lordviguro
  • Topic Starter

  • Members
  • 2 posts
  • OFFLINE
  •  
  • Local time:10:37 AM

Posted 15 August 2017 - 07:43 PM

Yes we have. We're using Windows Server 2012 as a local DNS



#4 Wand3r3r

Wand3r3r

  • Members
  • 2,027 posts
  • OFFLINE
  •  
  • Local time:07:37 PM

Posted 15 August 2017 - 11:42 PM

subnetting or in this case supernetting doesn't create traffic.

If the clients are using a dns server [assuming records are accurate and current], arp shouldn't be in play.

Might want to get checked out for malware or look at your current dns/client configurations

Edited by Wand3r3r, 15 August 2017 - 11:43 PM.





0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users