topic Pix .vs Router in Network Security

Pix .vs Router

tfrench01 — Fri, 21 Feb 2020 07:33:29 GMT

We have a cable modem, currently attached is a PIX501. Is it recommended, or mandatory to have a router between the cable modem and the PIX.?

Re: Pix .vs Router

spremkumar — Tue, 10 Aug 2004 12:15:36 GMT

yes of course u can have one router between u r Pix and cable modem which adds upto to u r security.

In the router itself u can block/filter worms,virus traffic using different feature available in the IOS,so in this case if u hve a router it will face the outside world and ur pix will come behind the router without exposing u r Firewall to the outside world

regds

prem

Re: Pix .vs Router

scottosan — Thu, 02 Sep 2004 16:50:22 GMT

No, you do not need a router between your PIX and Cable Modem

Re: Pix .vs Router

Richard Burts — Thu, 02 Sep 2004 17:25:50 GMT

I think both previous answers have answered parts of your question and represent different perspectives. No it is not mandatory to have a router between the PIX and the Cable Modem. Yes it might be recommended. There might be certain features you would like to implement that might take a router on the outside, perhaps filtering as was suggested which would help implement the layered security model which is frequently recommended. Or perhaps to terminate a GRE tunnel, or perhaps some other feature.

So depending on your particular requirements it might be called for. But it is not a requirement.

HTH

Rick