We run a flat network with all of our SMs in simple bridge mode. Nothing on the naitive VLAN. Management is on VLAN 5 and customers get an IP from one of 6 VLANs - we assign that in the "data VLAN" setting. All customer VLANs assign a private IP to the customers router (based on which VLAN they are in).
We have a PRTG monitoring server sitting on the management VLAN that pings all our radios (on the same VLAN). I am trying to get it to ping a customer's personal router's WAN IP behind one of our SMs. Our router is set to allow the PRTG server to access all IPs and all VLANs. That does work. However, I can't ping through the SM to the client WAN and I'm not sure what setting I need to change to do so...