If you attempt to do two gateway by net-gateway-connect in sequence you should get a 409 rather than a 500. Is that what you were trying to do? Or did you get a 500 error on the a single gateway by net-gateway-connect using the flat segmentation type?
If you attempt to do two gateway by net-gateway-connect in sequence you should get a 409 rather than a 500. Is that what you were trying to do? Or did you get a 500 error on the a single gateway by net-gateway-connect using the flat segmentation type?