Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!sdd.hp.com!zaphod.mps.ohio-state.edu!cis.ohio-state.edu!ucbvax!pasteur!dog.ee.lbl.gov!nosc!manta!norton From: norton@manta.NOSC.MIL (LT Scott A. Norton, USN) Newsgroups: comp.sys.amiga.datacomm Subject: KERMIT or XMODEM transfers over a TAC to Unix Summary: Hints needed to make XMODEM work or speed up Kermit. Keywords: Kermit XMODEM MILNET TAC Unix Message-ID: <2012@manta.NOSC.MIL> Date: 28 May 91 21:27:05 GMT Organization: Space & Naval Warfare Systems Command Lines: 22 I am currently accessing a Unix system (manta.NOSC.MIL) over a TAC on MILNET. I have been able to get Kermit to work (the TAC eats "@", but that can be changed to a character that Kermit doesn't use, like ^B). But because the TAC has a few seconds of latency, the acknowledgments for each packet slow things down, from 1200 baud to less than 300 throughput. I have a fairly old Wecker VT100 (v2.4, I think -- I'm typing away from my Amiga), that supports Kermit and XMODEM. The far end (manta) has C-kermit and XMODEM. Neither of the kermits support extended packets or windowed protocol, and I can't get XMODEM to work at all. XMODEM seems to time out due to the TAC latency. Can anyone give me some hints to improve my throughput? I can see I'll probably need to upgrade my terminal emulator on the Amiga end, and get a matching protocol on the Unix site. FTP-able solutions are prefered. BTW, the Unix site is BSD, and the Amiga is a 2000 with 20M HD, 2.5 meg, and a 2400 baud modem, (but the TAC only has 1200 baud ports) Scott Norton