mmorse@NOTE.NSF.GOV (Michael Morse) (05/28/88)
Does anyone have experience putting two 3COM boards in a PC to
support different protocols on the same LAN? I'm putting together a
mail bridge and I'd like to be able to receive SMTP mail on a PC and
store it on a 3+ file server.
At the suggestion of ftp Software, I installed two 3COM boards in a
PC clone. The first one was a 3c505 on interrupt 5, DMA channel 1, I/O
addr x300. The second one is 3c501 on interrupt 7, DMA channel 3, and
I/O address x380. I then placed entries in CONFIG.SYS for both 3+ and
PC/IP (ftp Software flavor) (3COM first, if it matters). Both boards
seem to work fine when they are not accessed in a single program, but
accessing both in a single program (e.g. smtp'ing a file from the file
server) causes network timeout error messages on the TCP/IP side.
Has anybody ever made something like this work with 3+ and 3COM
boards? (I know it's possible with other combinations of network
software and boards.) Does anyone know a reason why it should *not*
work? If it won't work with 3COM boards, could anyone suggest another
method? Again, I need to run an SMTP server that can drop incoming
mail onto a 3+ file server.
Any help you can provide will be appreciated.
--Mike
Michael Morse Internet: mmorse@note.nsf.gov
National Science Foundation BITNET: mmorse@NSF
Telephone: (202) 357-7659