I don't know the answer, but I found this post on the SolarWinds support forum, and it seems pretty detailed. https://thwack.solarwinds.com/product-forums/network-performance-monitor-npm/f/forum/61328/snmp-polling-meraki-devices-npm-12-0-11-0-1---how-to  ... View more

Have you though about using a splash page on the access points, and either using a custom splasg page or redirecting the users to a different web page based on which network they are in?   https://documentation.meraki.com/General_Administration/Cross-Platform_Content/Splash_Page#Custom_Splash_URL    or "Where should users go": https://documentation.meraki.com/General_Administration/Cross-Platform_Content/Splash_Page#Splash_Behavior  ... View more