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The Graveyard - Products No Longer Supported => Routers / COVR => DIR-655 => Topic started by: Nina-Sky on May 07, 2010, 09:46:48 AM

Title: Do I Need Routers Firewall Even Though I Have Vistas Firewall?
Post by: Nina-Sky on May 07, 2010, 09:46:48 AM

Do I need routers firewall even though I have Vistas firewall?

And how do I disable routers firewall?

Title: Re: Do I Need Routers Firewall Even Though I Have Vistas Firewall?
Post by: davevt31 on May 07, 2010, 10:11:37 AM

Yes, a Hardware (router's) Firewall is an excellent way to help keep your computer(s) safe.  Use them both.

Title: Re: Do I Need Routers Firewall Even Though I Have Vistas Firewall?
Post by: Kerry on May 11, 2010, 03:16:45 AM

I heard that using two firewalls slows things down. Apparently this is not true?

Kerry
DIR-655
Windows 7 Home Premium

Title: Re: Do I Need Routers Firewall Even Though I Have Vistas Firewall?
Post by: davevt31 on May 11, 2010, 08:55:00 AM

Having 2 software firewalls could slow things down, just has having 2 antivirus running does.  They both have to check things and that eats up CPU and Memory time.  You shouldn't notice any speed decrease by using the router's firewall and the built in one included in Windows.

Title: Re: Do I Need Routers Firewall Even Though I Have Vistas Firewall?
Post by: Nina-Sky on May 11, 2010, 03:18:44 PM

what is it spi and upnp (explain in baby language  :)) and what could happend if i disable them?

Title: Re: Do I Need Routers Firewall Even Though I Have Vistas Firewall?
Post by: davevt31 on May 11, 2010, 04:30:50 PM

SPI - Stateful Packet Inspection  http://en.wikipedia.org/wiki/Stateful_firewall (http://en.wikipedia.org/wiki/Stateful_firewall)

UPnP - Universal Plug and Play.  http://en.wikipedia.org/wiki/UPnP (http://en.wikipedia.org/wiki/UPnP)

Title: Re: Do I Need Routers Firewall Even Though I Have Vistas Firewall?
Post by: Nina-Sky on May 11, 2010, 06:38:03 PM

Quote from: davevt31 on May 11, 2010, 04:30:50 PM

SPI - Stateful Packet Inspection  http://en.wikipedia.org/wiki/Stateful_firewall (http://en.wikipedia.org/wiki/Stateful_firewall)

UPnP - Universal Plug and Play.  http://en.wikipedia.org/wiki/UPnP (http://en.wikipedia.org/wiki/UPnP)

and you think i understand that einstein stuff ???

Title: Re: Do I Need Routers Firewall Even Though I Have Vistas Firewall?
Post by: davevt31 on May 11, 2010, 07:39:41 PM

SPI- the router checks the incoming packets to make sure that the are genuine and requested by a system that is hooked to the router.  Helps to keep out bad stuff.

UPnP- Used alot in online gaming.  Certain games need specific ports open on the router to make the game work.  If the game is UPnP aware then it will tell the router to open those ports to play the game and then close them when the game is done.  Other programs not just games can be UPnP aware if they need to access the Internet as part of the program.
Also, some of the newer electronic devices that need Internet access use UPnP to make the connection.

Title: Re: Do I Need Routers Firewall Even Though I Have Vistas Firewall?
Post by: Mackerel on May 11, 2010, 08:32:53 PM

Quote from: davevt31 on May 11, 2010, 07:39:41 PM

SPI- the router checks the incoming packets to make sure that the are genuine and requested by a system that is hooked to the router.  Helps to keep out bad stuff.

What this means is, that only responses from outgoing requests are let back in, all the rest is dropped... So hackers cannot send you unrequested network packets...