We are attempting a POC for DLP using SIG tunnels directly to Umbrella. We have a fully meshed environment where all of our branch MXs function as hubs. However, for this test we are using a test MX set up as a spoke and using Cloud OnRamp to connect it to the Umbrella DC hubs. We have two DC hubs with access to our internal core network that we need this test MX to communicate with for DHCP, DNS, NAC, etc. When we add one of our DC hubs to the Test MX, it shows the internal subnets on the routing table, but it does not allow the MX to communicate with internal IPs. Does anyone have any thoughts on why this might be?
