Q

What types of network firewalls are there?

Learn what network firewall types exist to protect your network, in this response with enterprise security expert Michael Gregg.

What are the different kinds of firewalls that are out there? From what I gathered, I see there are application,...

proxy and UTM firewalls. Are there any others? Could you tell me if they differ in any way from the ones I already know of?

National Institute of Standards and Technology (NIST) 800-10 divides firewalls in to five basic types:

  1. Packet filters
  2. Stateful Inspection
  3. Proxys
  4. Dynamic
  5. Kernel
Now in reality, it's not quite that simple as most modern firewalls have a mix of abilities that place them in more than one of the categories shown above. Check out the NIST document for more details.

 

This was last published in November 2007

Dig Deeper on Network Security Best Practices and Products

PRO+

Content

Find more PRO+ content and other member only offers, here.

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.

Start the conversation

Send me notifications when other members comment.

By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy

Please create a username to comment.

-ADS BY GOOGLE

SearchSDN

SearchEnterpriseWAN

SearchUnifiedCommunications

SearchMobileComputing

SearchDataCenter

SearchITChannel

Close