configuring a split network (FWG/open) in LAN

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John Slate

• March 27, 2025 14:03

I want to create a split from my ISP/Router,..   so Router > 'split' =FWG, =switch...   The idea here is that my wifi ap's are connected through the FWG,  but that I also have a completely unrestricted (ie, no FWG)  link to the router as well.  I'm assuming I would need to use a L3 switch in-between the router and FWG to achieve this and set the FWG to Bridge mode and use the L3 for DHCP processing??  I realize that I can setup a segmentation/bypass within the FWG but I need a way for certain devices on the LAN to completely bypass the FWG hardware but retain internet connectivity.  Thanks for the help!!!

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  Firewalla

  • March 27, 2025 15:44

  Is it possible to draw a quick picture of this? I can't visualize the split network part

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  John Slate

  • March 27, 2025 16:02

  here ya go,..  used some bad terminology in my original post,..  ISP > cable modem (not router)...

  

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  Firewalla

  • March 27, 2025 18:17

  If you are using the L3 switch as a router, it is probably easier, just use the FWG as your main router and then define a port to connect to your no firewall devices. (you can allow traffic just to that segment)

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  John Slate

  • March 27, 2025 19:23

  I have to keep the these 3 devices off of the FWG hardware...   they need their own access to the internet completely outside of the FWG ecosystem..  Would using a DHCP router instead of the L3 Switch be a better option and just put the FWG into Bridge mode for the AP/wireless network?

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  Firewalla

  • March 27, 2025 19:38

  If your L3 switch is a router, then the best way to run the firewalla is in bridge mode. (you may be missing a few features). 

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