zjat02@trc.amoco.com (Jon A. Tankersley) (12/27/90)
We're looking at SLIP for connecting remote PC systems with our UNIX boxes and I've got some questions on implementation: Setting up the UNIX hosts with sliplogin (from slip4.0) is not a big problem, but SunOS 4.0.3 doesn't allow it easily from ttytab. This isn't a big problem either, but I have a limited number of ports to connect to via slip. Has anyone tried to implement sliplogin as part of the cycle on the getty baud rate cycle? I was thinking of having sliplogin first, then break for the different speeds of getty. On a PC, in this case with an MNP modem (19200/9600/...) running PC/TCP software, starting up slip, how do I get the modem to dial the proper number? I also have some special commands and passwords to get through some security to set up the connection. Is that possible? I tried using procomm to call, then try and connect, but either dropping or not dropping procomm didn't let slip work. And none of the PC/TCP utilities work without a connection in place. Any ideas? Is there any way to assign the SLIP IP addresses on the fly for the remote connections. We're going to have N PC's and only M connections (M<N) but not everyone will be calling in at the same time. I'd rather not have to have the users know M IP address to try, I'd rather let them establish a connection and get the IP address of the SLIP login. Is that possible or against the protocol? Is there a better way? PPP doesn't seem to be fully operational on SunOS 4.0.3 or 4.1* yet, at least not without source license. Please email and I'll post a summary of the responses. Thanx -- -tank- #include <std/disclaimer.h> /* nobody knows the trouble I .... */ tank@apctrc.trc.amoco.com ..!uunet!apctrc!tank
bushell@HAWK.NSTN.NS.CA (Tom Bushell) (12/28/90)
tank@apctrc.trc.amoco.com (Jon A. Tankersley) writes: >We're looking at SLIP for connecting remote PC systems with our UNIX boxes >and I've got some questions on implementation: > ......... >On a PC, in this case with an MNP modem (19200/9600/...) running PC/TCP >software, starting up slip, how do I get the modem to dial the proper number? >I also have some special commands and passwords to get through some security >to set up the connection. Is that possible? We recently had a similar problem when we needed to offer dial up Internet access for some of our NSTN (Nova Scotia Technology Network) customers. We were forced to write some C programs that dialed the phone and handled the logon sequence to our terminal server. >I tried using procomm to call, then try and connect, but either dropping or not >dropping procomm didn't let slip work. And none of the PC/TCP utilities work >without a connection in place. Any ideas? I'm surprised this didn't work for you. I've successfully connected with both NCSA Telnet and Phil Karn's KA9Q software using Procomm. Also, it turns out that KA9Q has a dialer. We discovered this by looking at the source code - nowhere is it mentioned in the documentation. >Is there any way to assign the SLIP IP addresses on the fly for the remote >connections. We're going to have N PC's and only M connections (M<N) but >not everyone will be calling in at the same time. I'd rather not have to >have the users know M IP address to try, I'd rather let them establish a >connection and get the IP address of the SLIP login. Is that possible or >against the protocol? We handled the dynamic assignment of IP addresses by having our C program capture the address assigned by the terminal server during the login sequence, and used an AWK script to modify the configuration files for the applications before we ran them. We used Rob Duff's pc AWK, which is available from SIMTEL. Hope this helps. -Tom ****************************************************************** * Tom Bushell Software Kinetics Ltd * * 101 Ilsley Ave * * E-mail - bushell@hawk.nstn.ns.ca Suite 5 * * Phone (902)468-3680 Dartmouth N.S., Canada * * Fax (902)468-3679 B3B 1S8 * ******************************************************************