Solved

Mitigate UDP Broadcast DDoS Attacks

Posted on 2013-06-27
4
708 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

Free learning courses: Active Directory Deep Dive

Get a firm grasp on your IT environment when you learn Active Directory best practices with Veeam! Watch all, or choose any amount, of this three-part webinar series to improve your skills. From the basics to virtualization and backup, we got you covered.

Question has a verified solution.

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

Exchange server is not supported in any cloud-hosted platform (other than Azure with Azure Premium Storage).
On Feb. 28, Amazon’s Simple Storage Service (S3) went down after an employee issued the wrong command during a debugging exercise. Among those affected were big names like Netflix, Spotify and Expedia.
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…
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…

688 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