New to Meraki with an Advanced Mixed Environment Challenge

[AdamBP]

Hello Wise Meraki Packet Wizards,

I'm a Jr. Network Admin in an organization that previously didn't have the budget for Meraki but they were very recently able to find some room in the budget.

inherited a task from a previous administrator with very little room to say 'No"

We had a site with Unifi UDM Pro being used to manage the network but now the company wants to use the MX gateway, the MS switches and CW APs and still use the Unifi equipment as a controller for the existing camera system.

I've looked at guides for similar configurations with a UDM behind PFsense, and they recommend configuring a LAN port on the Gateway to a subnet not in use for the WAN port of the UDM.
I'm guessing I use a trunk port for the LAN to LAN cable and an Access port set to an unused VLAN for the LAN to WAN port but I'm not entirely sure.

Any advice or guides for a mixed vendor set up like the one I'm describing?

[PhilipDAth]

That sounds reasonable. Create a VLAN on the MX and plug the Unify's WAN into that for its Internet.

https://documentation.meraki.com/MX/Networks_and_Routing/Configuring_VLANs_on_the_MX_Security_Applia...

[AdamBP]

Thanks PhilipDAth, I'm happy I'm not completely off base here. I'm feeling more optimistic about this now.

[Mloraditch]

I've had to do this, but you could also get a Unifi Cloud Key Gen 2 Plus and migrate off the UDM to that. While you can definitely disable 99% of the UDMs networking functions you can avoid any possible issues that might happen if it ever randomly resets itself, etc.

[AdamBP]

I can imagine! I don't have a spare cloudkey on hand, but I appreciate the option.

I know the UDM Pro is a more complex and powerful multifunction device overall but I'm excited to be doing more with Meraki.

Any tips or issues you ran into with your mixed vendor set up?