How do I split my internet from our ISP through an unmanaged switch?
So I am basically trying to run a Ubiquiti Dream Machine alongside our existing network setup (Virgin Media is our ISP with a Cisco router managed by Virgin, SonicWall Firewall, managed switches setup) before fully migrating over to a full unifi setup.
We have a block of public IPs allocated from Virgin, but they have said they cannot configure the Cisco router to allow us to run the dream machine alongside, and told us to use an unmanaged switch.
I plugged a dumb switch into the Cisco router WAN port, plugged into to our managed switch, to replace the current setup (our internet reaches our SonicWall via a HP Aruba switch) to try and split the internet basically and be able to plug the UDM into this dumb switch. However, this brings our internet down straight away and I can’t get it working again without reverting it back.
Any sanity checks or advice on how to set this up would be great.
I can plug the UDM straight into the managed switch and run a double NAT situation to get it running for now but obviously this won’t be viable long term when we want to change the setup entirely.