DNS Server Event Log: Event ID 5504 - Numerous Entries of invalid domain name in packet

In my DNS Server Event Log, I have received an incredibly large amount of entries with Event ID 5504.  The text within the event entry is as follows: "The DNS server encountered an invalid domain name in a packet from  The packet is rejected."   Why am I receiving so many packets from this specific IP address?  Should I be concerned?  Should I try and block this IP address from my network?  Any suggestions would be greatly appreciated.  Thank you.

Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Walter PadrónCommented:
I never see this event before but this guys resolved it

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Keith AlabasterEnterprise ArchitectCommented:
Keith AlabasterEnterprise ArchitectCommented:
Just for reference, that IP address is one of the DNS root-hints servers at Internic.
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
OS Security

From novice to tech pro — start learning today.