Tweet
Gurm -
How many PCs on the internet?
Hmm..well potentially, IP vers 4 allows for about 4 billion addresses in public use, bearing in mind the couple of ranges reserved for private systems, and then factoring in the number of large corporations with hundreds or thousands of PCs accessing the internet via a Porxy server and using NAT, I wouldn't be too suprised if this evened out a little.
Then remember that every router and switch out there on the internet is going to have at least one IP address allocated to itself..
2) How much CPU power to decode one megabit of TCP/IP traffic? - Over what timeframe? The network sniffer I use occasionally at work is a P233 laptop with 96mb of ram. We can capture and decode traffic practically on the fly, but I presume when you say 'decode' you mean 'read it and find out if it is anything worth looking at', in which case it shouldnt be too hard to pipe the decoded output to another machine which automatically checks the payload for certain words or phrases, or passes the payload to another machine which attempts to break any encryption.
As I understand things, the big-ass switches and routers that run the internet arent actually that powerfull in terms of raw CPU power.
It's far more likely that, as MDHome says, 'they' are targetting specific people and places. Anything sent to Saddam@Gov.Iraq for example.(Ulp, they're probably listening to me now..)
Rich
How many PCs on the internet?
Hmm..well potentially, IP vers 4 allows for about 4 billion addresses in public use, bearing in mind the couple of ranges reserved for private systems, and then factoring in the number of large corporations with hundreds or thousands of PCs accessing the internet via a Porxy server and using NAT, I wouldn't be too suprised if this evened out a little.
Then remember that every router and switch out there on the internet is going to have at least one IP address allocated to itself..
2) How much CPU power to decode one megabit of TCP/IP traffic? - Over what timeframe? The network sniffer I use occasionally at work is a P233 laptop with 96mb of ram. We can capture and decode traffic practically on the fly, but I presume when you say 'decode' you mean 'read it and find out if it is anything worth looking at', in which case it shouldnt be too hard to pipe the decoded output to another machine which automatically checks the payload for certain words or phrases, or passes the payload to another machine which attempts to break any encryption.
As I understand things, the big-ass switches and routers that run the internet arent actually that powerfull in terms of raw CPU power.
It's far more likely that, as MDHome says, 'they' are targetting specific people and places. Anything sent to Saddam@Gov.Iraq for example.(Ulp, they're probably listening to me now..)
Rich
). AFA theorists ... its a fact! The FBI admits the use of Carnivore and the Justice Department is investigating its use. Do a little bit of reading before theorizing what can't be possible.
Comment