Do you still need a firewall when using a router?

  soy 23:37 09 May 2003

Hi, finally managed to set up a router to my home network after almost 2 days.

Should I reinstall my firewall or is the router enough? I have a NAT configuration and a static IP.

  Pauper 23:45 09 May 2003

I run a router backed up by a firewall, this not only gives an additional level of protection, but also allows control over the programs etc trying to connect to the internet from the pc’s – something a router does not control. So in my opinion the answer is yes continue to use a firewall in conjunction with the router. Personally I use McAfee which causes no conflicts with my linksys router.

  jazzypop 00:55 10 May 2003

The primary job of a router is to separate the incoming stream of data, and send each packet in the stream to the correct PC.

If a rogue piece of software initiates a connection on a PC, the router will assume it is valid, and pass data to and from the PC.

Therefore it is sensible to also use a software 'firewall', which will check the permissions that you allocate to each program before allowing inbound or outbound communication.

It is equally important to have up-to-date anti-virus software on each PC. Sadly, it is also necessary to have anti-'spyware' software on each PC as well.

  soy 01:54 10 May 2003


I will reinstall my firewall, I unistalled it in the first place while configuring my router to stop any chance of conflicts.

Thanks again guys!


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