I'm trying to justify to my CIO the upgrade from hubs to switches based on network security issues. I've been looking for packet sniffers that can capture passwords to show that the hubs need to be changed. Can anyone suggest any apps that can grab passwords off of a network card running promiscuous on a hub?
Security is not the only benefit to be derived from using Switches instead of Hubs.
I've done consulting work in the past, and every firm where I substituted switches for hubs saw a dramatic decrease in network problems, and a huge increase in productivity with the faster response time.
A switch really isn't a solution to the 'seeing passwords' problem with a sniffer. A switch will keep the traffic more isolated for that segment, but someone could mirror a port and do a trace, do a trace upstream where all this traffic ends up going, etc.
If the passwords, etc are in the clear and if it is a issue for your company / CIO then look at using desktop applications that encrypt/protect sensitive information (passwords, codes, etc) in some manner before the machine sends the data out on the network.
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