connect MG41 to a fabric

[marco993]

Hello, i would like to know,                                                                                                             

how do I connect to a network having a gatway MG41 modem connected to an ms130-24p switch. It is possible to send through a dhcp an address of my fabric network to the MG41 or I need a device beetween my modem MG41 and the fabric network. Basically I have to connect a service in my fabric network to my meraki devices.

[javalins]

Is this a private APN with RFC1918 addressing terminating at some headend in yours or the provider infrastructure? If yes, then put the MG in Passthrough mode and it should work.  If this is the same, but over public internet, you would likely need an MX and AutoVPN if I am reading the ask correctly. 

[marco993]

maybe is the second one, I attached my test site.

[Mloraditch]

Ok so this is my second comment. You need some sort of firewall to enable routing between these networks. You are not using the MG as its intended (solely to provide internet to a firewall device). You certainly can connect layer 2 wise, but you will not be able to enable layer 3 communication between the two networks as-is.

[Ryan_Miles]

The MG runs its own DHCP server. If you connect the MG to a switch connect it to a dedicated L2 VLAN. Any other switchport in that VLAN/containing that VLAN will have access and be able to act as a client to the MG. Example, a MX or direct clients.

Many different topology examples can be found here. 

[Mloraditch]

I'm not entirely sure what you are asking so going to attempt to provide two answers based on what I think you may be asking: 

If about getting the MG online, The MG41 will connect to any standard lan via ethernet. The MG41 generally gets its internet from its cellular connection so it doesn't need DHCP. If you are having to setup/troubleshoot in safe mode it would need it temporarily

If you have an MS130 and are using the MG41 to provide internet/dhcp to the devices on the MS130 and the MS130 yourself, you will be able to  make the physical connection but the MG doesn't support routing. You will need to change your configuration and put other items in place to have the networks talk. An MX would be the easiest thing, but it depends on your requirements.

[marco993]

Yes, sorry for my question, it can create misunderstandings, I want that the AP conneced to my switch MS130 that is connected to my MG41 communicate with a service that is connected in my fabric (like in attached). If I understand your answers, I can't unless I put an MX or a router between MG41 and my fabric. 

[javalins]

Is that connection to the Rete Test Plant MPLS or L2? Have you seen this? https://documentation.meraki.com/MX/Networks_and_Routing/Integrating_an_MPLS_Connection_on_the_MX_LA...

[Mloraditch]

Yes that would be the easiest solution.