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Newsgroups: comp.os.386bsd.questions Path: sserve!newshost.anu.edu.au!munnari.oz.au!hp9000.csc.cuhk.hk!saimiri.primate.wisc.edu!sdd.hp.com!spool.mu.edu!torn!mcshub!todd From: todd@flex.eng.mcmaster.ca (Todd Pfaff) Subject: SLIP problems Message-ID: <1993Oct26.041102.18440@mcshub.dcss.mcmaster.ca> Sender: usenet@mcshub.dcss.mcmaster.ca Nntp-Posting-Host: flex1.eng.mcmaster.ca Organization: McMaster University Date: Tue, 26 Oct 1993 04:11:02 GMT Lines: 38 I'm having problems with a SLIP connection between a PC running 386BSD-0.1+pk0.2.4 and a Sun. I'm hoping someone can help me narrow down the cause of the problem. First, the problem: I can connect the remote Sun, start a SLIP login session, return to my PC and run slattach, ifconfig and route. The SLIP link is thus established. Then I try to ping the Sun. No response at all. I reduce the size of the ping (-s switch) and I finally find that anything larger than 30 receives no response. If I do 'ping -s 30' it works, with some lost packets. Next, I try to telnet or rlogin or ftp. These all work for a very short time; sometimes I get logged all the way in, sometimes I don't get past the login prompt, but it always hangs eventually. I can kill the hung process and a subsequent ping of the Sun works so the SLIP link isn't completely botched. I can let the ping go forever and it never seems to hang. Can anybody pinpoint the cause of these symptoms? Here is some information that may be useful: - speed is 9600 bps - PC only has 16450 UARTs (I'm suspicious of this. Should I be?) - sio serial driver - hardware flow control at the PC end, no XON/XOFF - connecting to the Sun through a dialup terminal server which I'm quite sure is using hardware flow control - interactive login sessions to the Sun (using Seyon) work fine - tried uncompressed, auto compress, and uncompressed SLIP with same results - same results with PPP -- Todd Pfaff \ Internet: todd@flex.eng.mcmaster.ca Dept. of Mechanical Engineering \ Voice: (905) 525-9140 x22902 McMaster University \ FAX: (905) 572-7944 Hamilton, Ontario, CANADA L8S 4L7 \