Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.

omw



3 posts

Wannabe Geek


Topic # 143906 30-Apr-2014 23:42
Send private message

I've been asked for my opinion about a network that has all its equipment on a public IP range (ie no NAT) whether they should go for adding NAT to the mix to help security (there's a pretty good firewall). IMHO NAT was useful about a decade ago as a security option, but nowadays it adds nothing much apart from unneeded complications. I'd be interested in second opinions. . . .

Create new topic
3343 posts

Uber Geek
+1 received by user: 1089

Trusted
Vocus

  Reply # 1034421 30-Apr-2014 23:47
Send private message

NAT is a hack.  In a way, I guess so are Firewalls... but I digress.  There's no good reason to NAT for "security" reasons.  If you have a correctly configured firewall, that is quite sufficient.

19282 posts

Uber Geek
+1 received by user: 2600
Inactive user


  Reply # 1034424 1-May-2014 00:00
Send private message

No just have a good firewall

gjm

745 posts

Ultimate Geek
+1 received by user: 91


  Reply # 1034473 1-May-2014 08:18
One person supports this post
Send private message

1) Find out that they own a /8 address space
2) Put NAT in and sell public IP range
3).
4) Profit $$$


...and if that fails, as people said above there's no reason to NAT.




[Amstrad CPC 6128: 128k Memory: 3 inch floppy drive: Colour Screen]

2505 posts

Uber Geek
+1 received by user: 932

Subscriber

  Reply # 1034520 1-May-2014 09:09
Send private message

Not for security, no, waste of time.




Windows 7 x64 // i5-3570K // 16GB DDR3-1600 // GTX660Ti 2GB // Samsung 830 120GB SSD // OCZ Agility4 120GB SSD // Samsung U28D590D @ 3840x2160 & Asus PB278Q @ 2560x1440
Samsung Galaxy S5 SM-G900I w/Spark

72 posts

Master Geek
+1 received by user: 20


  Reply # 1034523 1-May-2014 09:10
Send private message

only reason to use NAT is if you have more devices than you have IP addresses, otherwise its just adding processing overhead for nothing.

2401 posts

Uber Geek
+1 received by user: 702

Trusted
Lifetime subscriber

  Reply # 1034543 1-May-2014 09:29
Send private message

NAT blocks requests from the outside world by default.  Specific pinholes in the NAT allow specific traffic in.

A firewall can easily be mis-configured.

Think Onion.  Layers of protection.




"4 wheels move the body.  2 wheels move the soul."

“Don't believe anything you read on the net. Except this. Well, including this, I suppose.” Douglas Adams

153 posts

Master Geek
+1 received by user: 20


  Reply # 1034822 1-May-2014 14:03
Send private message

When NZ at least become IPV6, NAT will go i history as rudimentary technology. As for now you can use it if you want to free some IP's. It's improve security a bit (by blocking by default income connections) by price of complexity (port forwarding, port-triggering, etc). But any good firewall does this anyway, so why bother?

446 posts

Ultimate Geek
+1 received by user: 125


  Reply # 1034869 1-May-2014 15:08
Send private message

johnr: No just have a good firewall


Just have an average firewall and get someone good to configure and maintain it.

I've seen very expensive firewalls rendered useless by muppets who had no clue what they were doing.

omw



3 posts

Wannabe Geek


  Reply # 1034924 1-May-2014 15:47
Send private message

gjm: 1) Find out that they own a /8 address space
2) Put NAT in and sell public IP range
3).
4) Profit $$$


Selling is an option, but I understand that you can't trade in them (except if you're called Microsoft). Do you know of anyone in the nz space that has successfully sold/purchased blocks, and the amount?

153 posts

Master Geek
+1 received by user: 20


  Reply # 1034927 1-May-2014 15:54
Send private message

This could be additional cost for every external ip. Getting rid of expenses is almost a profit :)

Create new topic

Twitter »

Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:





News »

Hawaiki Transpacific cable ready-for-service
Posted 20-Jul-2018 11:29


Microsoft Dynamics 365 Business Central launches
Posted 10-Jul-2018 10:40


Spark completes first milestone in voice platform upgrade
Posted 10-Jul-2018 09:36


Microsoft ices heated developers
Posted 6-Jul-2018 20:16


PB Technologies charged for its extended warranties and warned for bait advertising
Posted 3-Jul-2018 15:45


Almost 20,000 people claim credits from Spark
Posted 29-Jun-2018 10:40


Cove sells NZ's first insurance policy via chatbot
Posted 25-Jun-2018 10:04


N4L helping TAKA Trust bridge the digital divide for Lower Hutt students
Posted 18-Jun-2018 13:08


Winners Announced for 2018 CIO Awards
Posted 18-Jun-2018 13:03


Logitech Rally sets new standard for USB-connected video conference cameras
Posted 18-Jun-2018 09:27


Russell Stanners steps down as Vodafone NZ CEO
Posted 12-Jun-2018 09:13


Intergen recognised as 2018 Microsoft Country Partner of the Year for New Zealand
Posted 12-Jun-2018 08:00


Finalists Announced For Microsoft NZ Partner Awards
Posted 6-Jun-2018 15:12


Vocus Group and Vodafone announce joint venture to accelerate fibre innovation
Posted 5-Jun-2018 10:52


Kogan.com to launch Kogan Mobile in New Zealand
Posted 4-Jun-2018 14:34



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.