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
Solved

Icmp flooding

Posted on 2002-04-11
8
1,867 Views
Last Modified: 2012-05-04
What is icmp flooding ?

Thanks and Regards.
0
Comment
Question by:leumas
8 Comments
 
LVL 51

Expert Comment

by:ahoffmann
ID: 6933493
# for exmample:
ping -s 1000000 -t 255 -f -i 0.01 -l 1000000
0
 

Accepted Solution

by:
Shoeb_786 earned 10 total points
ID: 6933580
If ur network is flooded with icmp message dg: ping message . it is called icmp flooding. Generally when u ping to a broadcast address, this happens and your entire network just crumples down

Regards
0
 
LVL 51

Expert Comment

by:ahoffmann
ID: 6933623
> .. and your entire network just crumples down
which network? Not mine :-))
0
U.S. Department of Agriculture and Acronis Access

With the new era of mobile computing, smartphones and tablets, wireless communications and cloud services, the USDA sought to take advantage of a mobilized workforce and the blurring lines between personal and corporate computing resources.

 
LVL 24

Expert Comment

by:SunBow
ID: 6948818
IMO, Shoeb_786 is incorrect, in part merely rephrasing question.
ditto ahoffmann * 2
although more elaborate comments could be made
this not a good time (esp for 10p)
0
 
LVL 4

Expert Comment

by:boxcar7
ID: 6970799
ICMP flooding is basically just sending an echo request ICMP packet (like from a ping) to a broadcast address.  Normally, NIC cards will only respond to their own IP address.  However, they will also respond to the broadcast address for their subnet (which is generally the last address on the subnet).  By sending the echo request to the broadcast address, *theoretically* every machine on the subnet will reply to the request with the ICMP echo reply packet.  This kind of flooding becomes even more insidious when the requester uses a forged source IP address, because assuming the victim doesn't flood his router with the reply, the replies will all be directed at the forged source IP address, another hapless victim.

In practice, most routers or firewalls are set to not allow directed broadcasts. That will prevent this type of attack (at least from the outside).
0
 
LVL 3

Expert Comment

by:FlamingSword
ID: 7048029
ping
0
 

Author Comment

by:leumas
ID: 7048667
thx
0
 

Author Comment

by:leumas
ID: 7048668
thx
0

Featured Post

Simplifying Server Workload Migrations

This use case outlines the migration challenges that organizations face and how the Acronis AnyData Engine supports physical-to-physical (P2P), physical-to-virtual (P2V), virtual to physical (V2P), and cross-virtual (V2V) migration scenarios to address these challenges.

Question has a verified solution.

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

Suggested Solutions

This article describes my battle tested process for setting up delegation. I use this process anywhere that I need to setup delegation. In the article I will show how it applies to Active Directory
Most MSPs worth their salt are already offering cybersecurity to their customers. But cybersecurity as a service is wide encompassing and can mean many things.  So where are MSPs falling in this spectrum?
Sending a Secure fax is easy with eFax Corporate (http://www.enterprise.efax.com). First, just open a new email message. In the To field, type your recipient's fax number @efaxsend.com. You can even send a secure international fax — just include t…
Sending a Secure fax is easy with eFax Corporate (http://www.enterprise.efax.com). First, Just open a new email message.  In the To field, type your recipient's fax number @efaxsend.com. You can even send a secure international fax — just include t…

829 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