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UTM Home - Bridge mode

I am a self confessed geek. I have a geek lodger  Therefore I have more than 50 devices.

25 IP cams, 15 Sonos, 10 Smart TVs 7 managed switches to mention a few.

As a result when I get my new internet connection next month I want to keep some devices outside the remit of the 50 licence Sophos firewall but the important ones / data inside.  The problem is that sonos for example doesn't work across subnets.

My thought was to have my firewall bridging between two VLANS both using the same IP address space. I have three 1G ethernet cards (two decent intel) in my UTM.

Has anyone done similar or have any advice ?  If the cost were reasonable Id consider a paid for product but I will have a 1G symmetrical service so whilst use is fairly modest the spec of a firewall might be quite high.



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  • As an option, you could also just install XG and not have to worry about that IP limit.  I haven't attempted what you presented here.

    OPNSense 64-bit | Intel Xeon 4-core v3 1225 3.20Ghz
    16GB Memory | 500GB SSD HDD | ATT Fiber 1GB
    (Former Sophos UTM Veteran, Former XG Rookie)

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  • As an option, you could also just install XG and not have to worry about that IP limit.  I haven't attempted what you presented here.

    OPNSense 64-bit | Intel Xeon 4-core v3 1225 3.20Ghz
    16GB Memory | 500GB SSD HDD | ATT Fiber 1GB
    (Former Sophos UTM Veteran, Former XG Rookie)

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