![]() So, I am guessing that WinGate is timing out the 3270 terminal emulation sessions due to inactivity. Extensive debugging and scripting facilities. X3270 is available in several different forms: x3270 is distributed as source code, and can be used for free. 12.99 iPad Screenshots TTerm 3270 is an enterprise grade terminal emulator designed for host connectivity between your iPad and IBM hosts requiring 3270 terminals. x3270 is for use on an X graphics display. (Note that PC2 is still using PC1 as its gateway in this case.) Free 3270 terminal emulator for mac mac os c3270 is a curses-based version for use on a dumb terminal (e.g., a serial terminal or a Linux console). To further isolate the problem I tried running the VPN software (AT&T Network Client) on PC2 instead of PC1, and lo and behold, my connection is rock solid, even after almost an hour of inactivity. To see if the problem is isolated to the Mac, I tried yet another 3270 terminal emulator (IBM Personal Communications) on PC2 and I got the same results. In the past true IBM 3270 terminals were often used for this purpose, but with the advent of personal computing the use of terminal emulation software like ZOC (on a computer running Windows or macOS) became the norm for TN3270 mainframes access, because it is considerably more cost effective than using genuine IBM terminals or even IBM 3270 emulation software. ![]() I tried another 3270 terminal emulator (TN3270) on the same machine and I got the same results. I am evaluating PowerTerm InterConnect for Mac OS X, and I find that after a minute or two of inactivity, the session get dropped. ![]() Now that I have my DNS resolution problem resolved (no pun intended.), on to the next problem: my clients' 3270 terminal emulation sessions timeout and get dropped after a minute or two.
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