More Detailed Question re: Placement in Network

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Matthew Kellen

• August 22, 2018 15:26

My network consists of my ISP modem -> wireless/wired router/fw -> wired and wireless devices.  I'm assuming for the control aspects of Firewalla, it needs to be in-line?  My router NAT's all the traffic from inside my network of course.  So my question is; does the Firewalla need to be placed between my router and my ISP?  If so, how does it distinguish the different devices behind the NAT for monitor/control?  If it is placed as a node inside my network, how is it enforcing the controls (policies, IPS, etc)?

Thanks so much!

-mk

My network:

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  Firewalla

  • August 22, 2018 17:15

  @matthew, thanks for the graph, it is nice.  Firewalla is an one port device, that virtually have two ports on the network layer.  So what you need to do is connect Firewalla to your "router".   It then will be in the same network as all of your internal devices.  Here is our quick write up on how it works https://help.firewalla.com/hc/en-us/articles/115004292514-Tutorial-How-does-Firewalla-Intercept-Traffic-

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  Matthew Kellen

  • August 22, 2018 17:26

  Thanks for the info.  The ARP solution is very slick.  I am much more comfortable considering this solution now. 

  Thanks again!

  -mk

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