Monitoring devices on routed networks

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Austin Hawthorne

• July 02, 2022 14:25

I have a setup where I have a number of networks routed through the Firewalla's LAN interface (from a downstream router).  Everything is working (using Firewalla as DHCP for those networks and NAT) but I don't see the devices on those networks under monitoring.  Since they are running through Firewalla is their a way to show those devices and their flows?

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  Firewalla

  • July 02, 2022 16:03

  Is your downstream router running in AP mode? see https://help.firewalla.com/hc/en-us/articles/360048543713-Firewalla-Tutorial-Using-your-existing-router-in-bridge-AP-mode-Gold-Purple-

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  Austin Hawthorne

  • July 02, 2022 16:08

  Downstream router is a cisco router with multiple subnets configured on it...want all those subnets to route through the firewalla (not bridge).  Routing/NAT works, just don't see the flows/devices in the app/web interface.

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  David Vaughan

  • July 03, 2022 02:18

  Austin, if you have a downstream router (the Cisco) then to the Firewalla all traffic will appear to come from it. The devices below that router are invisible to FW. This is normal. Swapping the routers' roles will fix visibility, if it works for your case otherwise

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  Austin Hawthorne

  • July 11, 2022 20:37

  Thanks David, appreciate the response.  Is this something that can be considered for a future enhancement?  The FW will see the src_ipaddr from clients behind the router, so, I'd assume that can be used as a basis for tracking devices behind the router.  In this scenario, I am src_nating traffic for those subnets at the FW, works great.

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