Creating Broadcast storms to take down a switched Network? - Network Security

mandi

I am willing to Take down a LAN Network with Broadcast storms,
Before that here is the topology of our overall Network

Please have a look at the following image which will represent The network set-up i am talking,


http&#58;//i54&#46;tinypic&#46;com/a32fzn&#46;png

(As the image is large ,I am placing this in code instead of [IMG] tags)

And here is the Information about our LAN


Total sub-nets-4

clients-90% of them running windows xp-sp2 and rest running windows 7 and vista&#46;

Servers-each sub-net has a DC i&#46;e server,they are running windows 2003 OS&#46;

Main-server-i&#46;e the 1 that is providing internet access to rest of the clients and other servers in sub-net 1,2,3,4 running red-hat linux&#46;

And switches used in our networks are un-managed one and our network does not have any kind of NIDS,HIDS,NIPS,HIPS or any kind of Network security set-up,&#46;&#46;

Traffic or accessing pc's across sub-nets is allowed by the Domain controller,

And LAN or Ethernet speed in a single sub-net is  100 mbps

I am having access in one of the pc's in sub-net 1 and i have privilege to install Applications and i am willing to create some kind of Broad-cast storms to bring down All the sub-nets,I don't know how much traffic i need to generate to take down this network,Also i am not sure about the right protocol's and exact Attacking vector to choose ,I heard about ARP broad-cast storms,but i am not sure about
generating ARP broad-cast across sub-net's ,Also i am not sure about the switch type,because it is kind of OLD and it is a un-managed one with no-IP Address for it..

So looking for some ideas and help,hope i will find some help...

McKittrick

don't most switches/routers drop broadcast frames? also, if you do send out something like that, you will be rather loud on the wire. do you really want that?

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