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    daft noob question

    This is a discussion on daft noob question within the Sky Router forums, part of the Sky Broadband help category; is the new netgear router (934) a firewall too? I'm just messing about with it before I go live next ...

    1. #1
      Sarahsdaddy's Avatar
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      daft noob question

      is the new netgear router (934) a firewall too?


      I'm just messing about with it before I go live next week and it looks like its got a firewall on too


      can someone confirm / deny this please to save me having to install a firewall


      on a related note whats the best freebie firwall out there, I used to use zonealarm... is it still the best one around?

      Cheers in advance


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    3. #2
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      Re: daft noob question

      Hi

      The DG934G has a built in incoming firewall. I would still include a software one as well for added security, but that is definitely your call.




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      Re: daft noob question

      I believe it is a NAT firewall, and the general idea is that an hardware firewall will always be supperior to any software install.
      I have it from a guy working in it systems for some 30 odd years that he dont bother with a software firewall behind his router... just thought i'd pass this on

    5. #4
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      Re: daft noob question

      good site to explain a bit here: GRC*|*NAT - The Security of Network Address Translation**
      hope it helps

      Snippet from link....
      A NAT Router's Inherent Security
      Although NAT routers are not generally purchased for their security benefits, all NAT routers inherently function as very effective hardware firewalls (with a few caveats examined below). As a hardware firewall they prevent "unsolicited", unexpected, unwanted, and potentially annoying or dangerous traffic from the public Internet from passing through the router and entering the user's private LAN network.

      The reason they do this is very simple: With multiple "internal" computers on the LAN behind the router, the router must know which internal computer should receive each incoming packet of data. Since ALL incoming packets of data have the same IP address (the single IP address of the router), the only way the router knows which computer should receive the incoming packet is if one of the internal computers on the private LAN FIRST sent data packets out to the source of the returning packets.

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      Re: daft noob question

      A software firewall is great for catching malicious activity, if you have been compromised etc.

      Something a hardware firewall in the router wouldn't catch. As the default is allow all outgoing.




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      Re: daft noob question

      ah ha yes the site does talk about the internal lan, supplying outwardly bound malicous netwrok packets, and the site then goes into talk of using another NAT router for an added security????
      I now understand why you would want the s/ware firewall, i guess the lan would only be compromised in the first place from a non wan source(ie malicous code from a usb memory device for instance), is that right?

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      Re: daft noob question

      You could open an email with a suspicious attachment for example, therefore rather than locking all the outbound down and making hundreds of potential rules to allow specific programs access to the Internet. Or in your example open a program, document off a USB pen that has been compromised.

      With a software firewall for example Sunbelt, (previously known as Kerio) it avoids the need to do that, as it will pop up saying x program wants access to the Internet, would you like to allow it.

      There is no right or wrong with or without a software firewall, just adds an extra level of protection I guess.




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      Re: daft noob question



      thanks for that... yes i completely understand now.... do you have any other details regarding that firewall, or should i just put the works one on... F-Secure... think i'll do that anyhow

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      Re: daft noob question

      If you have a works one and you are allowed to use it, it will save you some money.

      Like I said it's not that big a deal, but some people like to be more secure than others.




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      Re: daft noob question

      yeah its kind of like the whole protect your wi-fi thing thats going on at the moment, my boss summed it up quite well here...

      "the measures you take to prevent it are about liklihood and impact"

     

     
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