You need more than a router acting as a firewall for security

I used to have blackice defender as a firewall, but since I installed a router I see that I get no more attacks

on my blackice defender. Does the router act as a firewall now? The quick response is 'yes,' but you need more than a router acting as a firewall for security.

A border or perimeter router, when configured properly with an Access Control List (ACL) can filter inbound and outbound traffic and therefore "act as a firewall." However, a router's primary role is to forward packets across networks and not to replace a firewall, and vice versa. With that said, a border router can block unused services and ports that further protect your personal firewall.

Hopefully you are still using a PC firewall, at a minimum. Consider closely inspecting logs for firewall attacks and address these attacks with Black Ice Software to see if they offer a security hotfix.

This was first published in February 2003

Dig deeper on Network Security Best Practices and Products



Enjoy the benefits of Pro+ membership, learn more and join.

Have a question for an expert?

Please add a title for your question

Get answers from a TechTarget expert on whatever's puzzling you.

You will be able to add details on the next page.



Forgot Password?

No problem! Submit your e-mail address below. We'll send you an email containing your password.

Your password has been sent to: