Network blocked by ARP flooding

[k_bhavsar]

  Hi,

  I am facing network issue by ARP flooding. Due to this my network went down. Find the attached screenshot for reference.

[Vasilii Mikhailovskii]

Hello, Krunal.

You could try to capture ARP traffic and see (by MAC) who is abusing your network.

[k_bhavsar]

By capturing ARP traffic I found 1 DHCP server is sending malicious traffic into network. so how can I stop it?

[Ankur Arora]

What kind of malicious traffic are we talking about?

Thanks

Ankur

[devils_advocate]

If this is not one of your managed DHCP servers (i.e it should not be on the network) then you need to look at DHCP Snooping.