Re: no firewall = no firewall
if you use a router - chances are you're already using a NAT firewall.
McAfee is a software based firewall (which i personally dislike). It must be configured as well
An example of someone with out a firewall:
DSL modem (not router) connected directly into a workstation.
This would give the computer a 'real IP' on the internet - open to any/all traffic.
hope this helps
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