Solved

Mitigate UDP Broadcast DDoS Attacks

Posted on 2013-06-27
4
703 Views
Last Modified: 2013-07-10
Hi,

Could somebody please share some methods to Mitigate UDP Broadcast DDoS Attacks ?

Thanks!
0
Comment
Question by:g0all
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
4 Comments
 
LVL 11

Expert Comment

by:naderz
ID: 39283193
Here is a good start. This is from Cisco, but the principals can be applied to other platforms.

http://www.cisco.com/en/US/tech/tk59/technologies_white_paper09186a0080174a5b.shtml
0
 
LVL 1

Author Comment

by:g0all
ID: 39291587
Thank you, interesting generic document.

I'm still not able to understand if  mitigating DDoS UDP Broadcast  Attacks is possible and if so, how?
0
 
LVL 11

Accepted Solution

by:
naderz earned 500 total points
ID: 39291858
There is always new ways of attacks. But, I can think of the following steps that as a general rule should mitigate against "broadcast" attacks:

1. Turn off directed broadcasts: on Cisco routers this is done by "no ip directed-broadcast" interface command.
2. Turn off "chargen" and "ICMP Echo reply"
3. Do not allow forwarding of broadcast traffic on routers. This is off by default. Make sure it stays that way.
4. Use " ip verify unicast reverse-path " command.
5. Use an IDS at the perimeter of the network to detect attacks.
0
 
LVL 11

Expert Comment

by:naderz
ID: 39294034
In addition and prior to above configurations you should have a network design that limits and confines broadcast domains by using VLANs.
0

Featured Post

Major Incident Management Communications

Major incidents and IT service outages cost companies millions. Often the solution to minimizing damage is automated communication. Find out more in our Major Incident Management Communications infographic.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Tired of waiting for your show or movie to load?  Are buffering issues a constant problem with your internet connection?  Check this article out to see if these simple adjustments are the solution for you.
This past year has been one of great growth and performance for OnPage. We have added many features and integrations to the product, making 2016 an awesome year. We see these steps forward as the basis for future growth.
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
Both in life and business – not all partnerships are created equal. As the demand for cloud services increases, so do the number of self-proclaimed cloud partners. Asking the right questions up front in the partnership, will enable both parties …

739 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question