[comp.protocols.ibm] RSCS-to-TCP/IP

gorman@CACFS.ARPA (05/27/88)

Folks,

I'm not a subscriber to either of these lists and I have not looked
over the recent archives to see if the question I raise here is
appropriate; nevertheless, I am hoping that there may be some
experience, wisdom, and good will out there that might help straighten
me out.

The military college here is on an SNA wide area network with other
military schools and training centers throughout the country, and we
are looking for a way to bridge its PROFS message traffic (which I have
been led to believe uses RSCS at its transport level) to a TCP/IP-based
network--much as some BITNET hosts that are also on the ARPANET bridge
mail between the two nets.  My understanding of the Penn State UREP
package is that it will permit a UNIX system, say a Sun-3, emulate an
RSCS host, and that there is a public domain synchronous driver for the
Sun's serial port.  If this is correct, I'm assuming that if we bring
up UREP on one of the Suns that we already have on the TCP-IP network,
we can effectively make it a mail bridge between the two networks if we
connect it (BSC or SDLC?) to one of the IBM FEPs on the SNA network.
I'm thiking the other VM systems will think the Sun is another RSCS
host?  Does this sound accurate?  If so, will also UREP convert RSCS
format to RFC 822 and vice-versa?  If not, can someone suggest a
possible alternative?

Thanks in advance,
Bryan Gorman
SRI International


P.S.  Please reply to directly to me (gorman@cacfs.arpa) as I am not on
either of these lists.