| 26RADVISION | RADVISION Port Security Reference GuideSCOPIA XT Desktop ServerTable 1-17 lists ports that need to be open on SCOPIA XT Desktop Server.Table 1-18 lists the ports on the SCOPIA Desktop XT Server when connected to the public internet.Table 1-17 Ports supported by SCOPIA Desktop XT Server and Internal NetworkPort Range Protocol Direction Severity Functionality80 TCP Incoming Optional GUI—The alternative is to configure the GUI to run on port443.443 TCP Incoming Mandatory Control connection between the SCOPIA XT Desktop Clientand the SCOPIA XT Desktop Server.3336, 3337 TCP Outgoing Mandatory Cascade/XML control connections between SCOPIADesktop Server and SCOPIA XT1000.1025-65535(configurewithin thisrange)TCP Both Mandatory H.323 traffic between the SCOPIA Desktop Server and theSCOPIA XT1000 Series.To edit this range:1. Navigate to C:\Program Files\Radvision\SCOPIADesktop\ConfSrv.2. Edit the file config.val.3. Locate the [1 system] section.At the bottom of that section, add two lines:2 portFrom = and2 portTo = .10000-65535(configurewithin thisrange)UDP Both Recommended Media connection between the SCOPIA Desktop XT Serverand Client. If not open, the connection will be tunneledvia TCP port 443 and performance will not be optimal.At full capacity, the SCOPIA XT1009 requires 76 ports.Limit the range of the of the multimedia ports in theSCOPIA Desktop XT Server Administrator web interface bynaviagting to Client > Settings tab > Multimedia Ports.Table 1-18 Ports to and from the SCOPIA Desktop XT Server connected to the public internetPort Range Protocol Direction Severity Functionality80 TCP Incoming Mandatory GUI access. The alternative is to configure the GUI to run onport 443.443 TCP Incoming Mandatory Control connection between the SCOPIA Desktop Client andSCOPIA Desktop XT Server.