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Hi Kip, > I think the problem is that outgoing communications are on a specific port > which the security people have opened through the firewall for IDV. However, > the server apparently communicates back on a random port which of course is > blocked by our firewall. There's no chance the security people will leave > open large numbers of ports for the IDV server to send back imagery. Why > doesn't the server use a specific port? Until this problem is resolved, we > will be unable to use IDV to look at real-time data. > This doesn't sound right. The server doesn't try to connect back to the client on a random port. The IDV opens a connection to the ADDE server (probably on port 112, see:http://www.unidata.ucar.edu/support/help/MailArchives/mcidas/msg02711.html), makes the request, gets its data and then closes the connection. This is just like a web browser making a connection to an external web server on port 80. -Jeff Ticket Details =================== Ticket ID: GKH-525804 Department: Support IDV Priority: Emergency Status: Open