we have an LMS and we have some devices in different networks. Devices are 38xx, 28xx, etc.
LMS can only fetch VLAN config from devices located in the same subnet that the LMS is.
In the rest of devices, LMS can fetch running and startup configs but not vlan.dat.
It's not a credentials problem. We think it's the internal method used for recovering this file.
We need to know how is this file retrieved (via TFTP, is it send by the router...) because there is a network between LMS and these devices administered by other group and we have to tell them which ports must be opened.