What are the chances of having one HP3000 within a company firewall and another HP3000 outside the firewall and yet being able to DSLINE from one to the other ? If DSLINE doesn't in general get through a firewall, are there any other options for RFA and RDBA ? It's probably obvious that my knowledge of networks is pretty minimal so write any answers slowly please :) and I'll pass them on to more qualified colleagues ... Costas Anastassiades, Athens-Greece