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 Post subject: What is the Real Network Topology
PostPosted: Thu Jun 07, 2012 11:06 am 
8086
8086

Joined: Thu May 10, 2012 6:05 am
Posts: 28
Not sure which sub category this belongs, so admin's try not to be too harsh.

I was talking to a co worker of mine about our network topology at one of our branch offices.

basically the system goes like this:

internet > modem > firewall > router > internal network (switches nodes servers etc)

I was explaining to him that I think it's in reverse order, that it should be

internet > modem > router > firewall > internal network

he said no, think of the firewall was protecting everything inside the network.

I didn't have a rebuttal because i do not completely understand why the router should be before the firewall, I've just always known it to be that way from diagrams seen / read in articles.

So I propose this question to everyone here, what is truly the best router / firewall small business network setup and why?


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 Post subject: Re: What is the Real Network Topology
PostPosted: Sat Jun 09, 2012 4:19 am 
8086
8086

Joined: Tue Feb 16, 2010 10:04 am
Posts: 91
I agree w/ your co-worker. Think about the case of a consumer router where the firewall is integral to the router. In actuality, the firewall is intercepting and filtering BEFORE routing takes place. If this wasn’t the case, there would always remains the potential for something to be routed around the firewall (if only accidentally or by oversight). In general, you want to prevent potential hazards as soon as possible.


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 Post subject: Re: What is the Real Network Topology
PostPosted: Mon Jun 11, 2012 10:38 am 
8086
8086

Joined: Thu May 10, 2012 6:05 am
Posts: 28
Well said!

I had a feeling he was right, but i was being stubborn. :oops:

But that was well written, thanks for the explanation.


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