Need of Firewall?

From: Albert Hong (joo_hong@yahoo.com)
Date: 03/20/02 

From: "Albert Hong" <joo_hong@yahoo.com>
Date: Wed, 20 Mar 2002 08:28:47 GMT

I'm wondering if you really need the Firewall Router to protect your
internal Network, or a simple NAT router is more than enough to protect your
network?
And what is the advantage of using Stateful Packet Inspection Firewall to
protect your internal network? Are there any ways that external traffic can
sneak in to your internal network through a simple NAT router? Thanks.

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