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![]() HP OpenVMS Systemsask the wizard |
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The Question is: I have asked a similar question before but have not managed to get the question I really wanted answered, answered. Reverse IP on Decservers. The requirement is to emulate LAT but not for printing purposes. Currently have datafeeds (synchronous? I/O, in and out) devices mapped to LAT devices. This functionality needs to be duplicated using IP only. All articles suggest creating LAT device and then setting it spooled and using Telnet symbiont to interact with the remote Decserver/Telnet Port listener. I don't think this will give the two way comms capability required. Need means to perform I/O directly with Decserver/Port using TCPIP. The Answer is : Though it may seem obvious, Telnet and LAT are quite different -- with differing capabilities and design goals. Please see the documentation around the TCP/IP Services for OpenVMS TELNET command CREATE_SESSION. This command is the equivilent of the operations performed in LTLOAD.COM or LAT$SYSTARTUP.COM. There is no TELNET equivilent to the sys$qio[w] control interface for LTDRIVER (as documented in the I/O User's Reference Manual) available, though the Wizard would expect standard sys$qio[w] calls referencing the created TN device would operate as expected. If you require an answer beyond this and beyond what has been referenced here in Ask The Wizard on various previous occasions, please contact the Compaq Customer Support Center -- the Wizard has answered this question before, but apparently in insufficient detail or with insufficient clarity for your particular requirements. Previous discussions include 998 and 1370.
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