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On 28/10/10 12:29, Jaan Janesmae wrote:
Just to add that a lot of switches can be 'broken' by connecting two or more devices to one port. This often makes then broadcast on all ports rather than route like a switch should.A switch does not encrypt your traffic. It routes it differently. For example, if a hub gets a packet of data from a source, it repeats (transmits) this to all it's ports. So all the traffic going throug a hub is sent to all computers linked to the hub. Also when 2 or more computer try to send stuff at the same time, collisions happen and some fancy bit of software has to deal with it. Anyhow, a switch works in a completely different way. It's kinda like connecting multiple computers with crossover cables and the box (switch) just connects between connections. So if computer A sends a packet to computer B then the switch connects those 2 and computer C can't simply listen to their traffic. Switches do this magic using a table of each destination address and port. Hope this explains it a bit. Jaan On Thu, Oct 28, 2010 at 12:13 PM, Paul Sutton<zleap@xxxxxxxxx> wrote:On 28/10/10 10:55, Jaan Janesmae wrote:Actually, with wpa and wep all your communication is crypted. I mean It is much harder to listen to your traffic. On a open wifi box there is none of that. Basically the same thing when using hubs instead on switches for your local lan. Regards, JaanSo this suggests that a switch also encrypts data on the network between computers attached to it or don't i understand something here? This is something that would be good to discuss at a lug meet, The ironic thing is when I first enquired at paignton library I mentioned things like talks on internet safety (which the above would come under) as one of the things we would like to do (as a public service sort of thing), it is the sort of thing they want to encourage. well encourage by forcing people to have computers pat tested, then take out liability insurance, and for that, we are not even going to charge the public for doing the talks. Paul -- The Mailing List for the Devon& Cornwall LUG http://mailman.dclug.org.uk/listinfo/list FAQ: http://www.dcglug.org.uk/listfaq
I would hope most ISP's would use ones that were better than this.... Tom te tom te tom -- The Mailing List for the Devon & Cornwall LUG http://mailman.dclug.org.uk/listinfo/list FAQ: http://www.dcglug.org.uk/listfaq