I read similar topics and think I have a grasp on things but still have a question regarding this scenario and the management IP of the switch performing the ISP routing. The management IP cannot have a gateway of it's own L3 interfaces nor can it be the same IP address as one of those interfaces, correct? So in this scenario would I need to increase the /30 to a /29 so the management IP can be unique? That or have an access port on the management VLAN the connects to the MX LAN? Any help is greatly appreciated.![MS350 as Router.png MS350 as Router.png](https://community.meraki.com/t5/image/serverpage/image-id/11582iEA99C84ADA607194/image-size/large?v=v2&px=999)