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Originally Posted by tekman22003
I would like to weigh in on this topic. I use AVG on a regular basis. I also have a linkysis router, is the firewall protection built in by just having the router? In other words if I have a router do I have a built in firewall?
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An antivirus program is much different than a firewall, and addresses separate issues. Firewalls prevent (or attempt to) unauthorized access to a network. Antivirus programs attempt to prevent (usually) malicious applications from being installed on a computer. By a strict definition, a router is not a firewall. It does, however, provide some of the same security benefits.
Traditionally, a router uses something called NAT (Network Address Translation) to give the computers on the "protected" LAN side of the network a different, unaddressable set of IP addresses. On the WAN side of the router are the unprotected, ISP assigned, routable set of IP addresses (in most homes, only one).
Some routers do have rudimentary firewalls built in, so you may be provided with some extra protection.
Nonetheless, a router such as a dlink or linksys does provide you with an excellent layer of protection between the internet and the "fake" network on the LAN side. It is, in my opinion, much preferrable over any computer based firewall. With software based firewalls that are installed on your computer connected directly to the internet, the potential hacker is accessing your computer directly to try to hack it. With a hardware router between you and the internet, the potential hacker has to breach the router first, then after a complicated series of steps, your computer. This is quite unlikely, when properly configured.
So in my opinion, never connect your computer directly to the internet, always use a router, at a minimum.
This is a bit of a tangent from the original post, so if we are going to discuss routers, please start a new topic.
Let me know if you have any questions...