axt654@csc.anu.oz.au (12/04/90)
Hi, I'm running Sun's version of PC-NFS on a 386 PC with a 3C503 card but also want to run NCSA Telnet because I need some of it's features. The problem is that the NCSA driver (and the packet driver) need a shared memoryt address available (eg dc00 or d800) but the NFS software requires this to be disabled (PC-NFS version 3.0.1). Is there some way around this? Is there a packet driver that runs with shared mem disabled? Thanks, Andrew Tridgell tridge@aerodec.anu.oz.au
fks@FTP.COM (Frances Selkirk) (12/05/90)
The packet driver does not support running two stacks of the same protocol (e.g. PC-NFS and NCSA, which are both TCP/IP). Both stacks will have to receive broadcast packets, such as ARPs, and one will loose. The packet driver is useful for running two different protocols stacks (e.g. TCP/IP and IPX), where each packet is clearly destined for one or the other.
fks@FTP.COM (Frances Selkirk) (12/05/90)
Actually, that was a bad explanation! One of the stacks will loose long before a broadcast packet. The packet driver decides where to send a packet based on what protocol it is. Only one IP stack (I believe the one loaded last) will get the packets, and it will get both the packets intended for it, and the ones intended for the other stack, which, if you're lucky, it will ignore. Frances Kirk Selkirk info@ftp.com (617) 246-0900 FTP Software, Inc. 26 Princess Street, Wakefield, MA 01880
aland@informix.com (Colonel Panic) (12/12/90)
In article <1990Dec4.124602.3672@csc.anu.oz.au> axt654@csc.anu.oz.au writes: >Hi, >I'm running Sun's version of PC-NFS on a 386 PC with a 3C503 card but >also want to run NCSA Telnet because I need some of it's features. The problem >is that the NCSA driver (and the packet driver) need a shared memoryt address >available (eg dc00 or d800) but the NFS software requires this to be disabled >(PC-NFS version 3.0.1). Is there some way around this? Is there a packet driver >that runs with shared mem disabled? I faced a similar situation when trying to run WIN/TCP from UNIX and PC-NFS from DOS on the same machine and card. PC-NFS doesn't give you a choice of enabling shared memory on those cards that it wants it disabled by default. I decided to shift to using the WD8003E instead, for which PC-NFS does use shared memory mode. -- Alan Denney aland@informix.com {pyramid|uunet}!infmx!aland "When will Apple get socially responsible and offer separate trash can icons for glass, aluminum, and paper?" - Lincoln Spector