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i was thinking about how people can "scramble" signals and i was thinking is it possible to do such a thing on a common laptop?

i have heard of certain methods of grabbing packets out of the air but not Local Dos. now the basic idea is to scan for signals in your range and spam them out with requests for information like... name, login (auth) ,etc

is there something that can stop requests like that (as i would suspect)
and is it even possible for a wifi card to support so much use.

maybe there would be a way to use 2 usb wifi adapters,and a card, and internal all smashed together in one program assaulting one router, and maybe even a mac changer to make it seem like it is just a busy day at work?

i would only suspect that this would eventually take down the wifi and not the actually ethernet connectivity to the internet but i may be mistaken

well hold the criticism or insults about how stupid or w.e this post is to you...

just want answers or w.e you may know to help.

I'm not sure what you mean exactly, but I think the only want you would be able to do that is to have enough wireless computers to all send requests to the router at the same time, more a Distributd DoS. This might hog up the bandwidth but with just one computer trying to do this I doubt it would work since Wireless routers use Collision Avoidance to keep traffic flowing orderly. If you have enough machines sending requests to the router simultaneously you may be able to bog down the router.

I'm not familiar with the intricacies of 802.11 (or any other wireless protocol families), but I guess when you say "scrambling" signals you mean messing with the radio waves before they reach their destination, in theory you could use superposition of waves to try to nullify/garble signals at certain points so that whatever a target receives is useless, I think this could be hard as you'd have to have a very fast turn around time as on a ≈3GHz CPU between each clock cycle the radio waves would have moved 10cm (2.99882396e8 * (3e9)^-1 = 9.99607987e-2) and would reach the target in anywhere from <1 cycle if the router is next to their computer or 2,500 cycles if they are sitting on the max range of an outdoor router.

Unless you have some way of predicting packets then it's probably not going to be doable on a computer and even then it depends on how much you can predict as to how much you can scramble. To add to that I think most wireless routers have double antennas so any canceling could be that much harder if they both broadcast, but like I said I'm not familiar with wireless protocols.

The alternative method that sounds a bit simpler to do is something like what this guy says and do a simple DoS by overwhelming the router.

is it possible to fraud all the information of a laptop connected to a router

like bssid/essid/mac/etc and then assault it?-perhaps that would just give you access?

hmm..

Just give you access, you mean on a network with a connection key that you don't know? You wouldn't be able to encrypt outgoing packets or decrypt any incoming packets so that's a no go. If you have got the key then you can get every packet floating around anyway; set your card to promiscuous mode and get something like Wireshark, or get out a computer running Backtrack which is ready to go. As for pretending to be someone else when sending packets thats probably as easy as it is without the wireless but beyond suggesting it's easy I can't really help on that.