Sorry for this not being directly related to ISA, but still relevant I feel. I have two sites configured as below: Win2k RRAS | --- | Linux Smoothwall | --- Internet --- | ISA Server / RRAS The Linux Smoothwall just forwards PPTP packets to the RRAS. Each RRAS server can demand dial (over PPTP) to the other, and all works fine. I would like to run OSPF over the connections, I have added both the LAN interfaces and demand dial interfaces to the OSPF protocol, but the servers don't appear to listen. There is no option to add the internal interface or similar 'listening' interface. I have achieved most of what I need to by adding static routes, but this isn't ideal. Anyone else managed to achieve this? Cheers in advance, Joel Mansford MCP. This e-mail has been scanned for all known viruses by Star Internet on behalf of The Instrumental Media Group. Whilst every care has been taken to ensure this message is virus-free, neither Star Internet or The Instrumental Media Group can be held responsible for any virus it may contain. http://www.instrumentalmedia.com