On Mon, 6 Apr 2009, Marc Chametzky wrote: I think I'm going to set up MultiNet on the Alpha and try using a TCP circuit between LULU and DUSTY. This will tell me whether it's a DECnet routing issue or an Ethernet packet one. Well, with a DECnet-over-IP circuit instead, it's working just fine with both nodes seeing each other's adjacency, and from LULU I can connect to LEGATO. So, some sort of Personal Alpha networking glitch. That's surprising since I do have the two nodes clustered, so that's working. I wonder what's not working right with DECnet routing multicasts. Well, this may be suboptimal, but it works well enough and that's all that matters. --Marc Marc you might also double check your cabling (in fact even change them). As I recall, DECnet (like IPX) is not an error correcting protocol. I've worked on networks where TCP will error correct for poor cabling while the Novell connections fell flat on their faces. This could explain why your IP connection seems to work fine, but you have no DECnet connectivity. Brett