Return to BSD News archive
Newsgroups: comp.os.386bsd.questions Path: sserve!newshost.anu.edu.au!munnari.oz.au!news.Hawaii.Edu!ames!agate!howland.reston.ans.net!torn!mcshub!flex1!todd From: todd@flex.eng.mcmaster.ca (Todd Pfaff) Subject: Re: SLIP difficulties Message-ID: <1993Nov18.171925.6649@mcshub.dcss.mcmaster.ca> Sender: usenet@mcshub.dcss.mcmaster.ca Nntp-Posting-Host: flex1.eng.mcmaster.ca Reply-To: todd@flex.eng.mcmaster.ca Organization: McMaster University References: <1993Nov17.130816.6937@alw.nih.gov> Date: Thu, 18 Nov 1993 17:19:25 GMT Lines: 50 In article 6937@alw.nih.gov, crtb@helix.nih.gov (Chuck Bacon) writes: > This appears to be a problem between Cisco and FreeBSD -- perhaps a > misunderstanding of the Van Jacobson protocol (?), although I got no > response at all when I tried NOT using VJHC! I'm not sure my problem is related to what you've described but I've asked about it before in this group and only received responses like "it works fine for me". I dial into a Sun or SGI system (I've tried both with same results) through a terminal server. I'm not using the terminal server to provide slip; it's only used as an intermediate link to the remote Unix system. I run SLIP on the remote system and then exit to my local PC running FreeBSD. The SLIP connection works somewhat. I can ping the remote host, but I have to limit the ping packet size to 30 bytes, otherwise I don't get a response. Telnet and rlogin work sometimes and only for a short time. I have been able to get a remote xterm working but it also hangs eventually. I've tried a direct SLIP connection between the PC and SGI (no modem, no terminal server in between) and it worked. I've tried a modem SLIP connection between two PCs (no terminal server in between) and it worked. The connection looks like this: localhost -- modem ----- modem -- terminal server -- Ethernet -- remotehost where the SLIP connection is established between localhost and remotehost. It may be important to note that a pseudo tty is used for the SLIP process on remotehost side since the terminal server uses telnet to connect to remotehost. Hmmm, this brings up a question I just thought of... Is telnet transparent to the data stream between the terminal server and remotehost? If not, by default, is there any way to overcome this?. I would think the terminal server should be completely transparent to the data stream but maybe it's not. The terminal server supposedly has XON/XOFF flow control disabled and hardware flow control enabled on the modem port I'm using. Any ideas? --- 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 \