Packet Sniffing Countermeasures
As told earlier a hub network is more prone to sniffing so its better to use switch instead of hub. Switch will not only reduce chances of sniffing but will also increase performance of network. But switch merely can't act as countermeasure against packet sniffing. As you know if hacker uses ARP spoofing he/she can easily sniff packets from switched network. So a switch can never be a complete solution to packet sniffing. Countermeasure against sniffing also depends upon size of network I.e is your network small as 20-50 computers or its large as 1000-2000 computers or more
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