marketking
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Hi, I need to open port 1723 (TCP PPTP) on a 3com 5012 router for telnet access to server. I was trying to use port-mapping in system-view, but evidently was not listing the application name correctly. Telnet remote client is Ubuntu Linux. A look at existing port-mapping shows open ports are "system-defined". Anyone know what "system-defined" means, and how I can open TCP Port 1723? Thanks.