[HECnet] Need help with DECnet routing

I have my new system, LULU, up and it's connected via Ethernet on the same network segment as DUSTY. LULU is a non-routing end node. DUSTY is "TYPE ROUTING IV" and has two circuits, TCP-0-0 to LEGATO and QNA-0 for the local network. DUSTY has connectivity to both LEGATO (and the rest of HECnet) and also to LULU. LULU, on the other hand, can only connect to DUSTY. It can't connect to LEGATO. I thought that DUSTY, being a routing node, would route packets between its two circuits, but that appears not to be the case. I tried setting DUSTY up as an area router, thinking that making it a level 2 router would permit LULU's packets to go through DUSTY, but that didn't seem to work either. What should I do in order to get DUSTY to route the packets from LULU to the rest of HECnet? --Marc