We help IT Professionals succeed at work.
Get Started

DoS Attack on Cisco Routers

cpatte7372 asked
Last Modified: 2014-01-15
Hello Expert,

I have just resubscribed to EE because the company I work for appears to be subject to DDoS attack.

The attack is coming from 79.173.X.X and it using port 1029 to attack port 4500 on our router. The application is identified as 'Solid Mux'. When I did some research I found the following statement:

“The port 1029 is a Registered port. It is one of the first of this kind after the Well Known ports. A user must have privileged access, such as administrator access, to open Well Known ports from 0 to 1023. The Registered ports can be opened by other programs and users. It is used by the Solid Mux Server. The port 1029 is vulnerable to worms, Trojans and other malicious software.”

Can someone please help with a access-list to block the ip the address?


Watch Question
This problem has been solved!
Unlock 2 Answers and 16 Comments.
See Answers
Why Experts Exchange?

Experts Exchange always has the answer, or at the least points me in the correct direction! It is like having another employee that is extremely experienced.

Jim Murphy
Programmer at Smart IT Solutions

When asked, what has been your best career decision?

Deciding to stick with EE.

Mohamed Asif
Technical Department Head

Being involved with EE helped me to grow personally and professionally.

Carl Webster
CTP, Sr Infrastructure Consultant
Ask ANY Question

Connect with Certified Experts to gain insight and support on specific technology challenges including:

  • Troubleshooting
  • Research
  • Professional Opinions
Did You Know?

We've partnered with two important charities to provide clean water and computer science education to those who need it most. READ MORE