T_WADE@CCVAX.UCD.HEA.IRL (10/19/87)
Greetings.
1. I am running CMU TCP/IP on two VAXes (VMS 4.5) on an ethernet with
SUN workstations. I have a 64K link to another ethernet with two
VAXes (VMS 4.5), using Bridge Communications GS3 boxes. I am having
some problems configuring the VAX software to handle the bridge.
Can someone tell me the meaning of the various fields in the
CONFIG.TXT and HOSTS.TXT (especially those mentioning GATEWAYs)?
As we are all new to TCP/IP here, we would appreciate any help.
If you are actually using such a beast, maybe you could include
your configuration files ?
2. I have not got SMAIL to work yet. If I specify a destination such
as "user@node" it looks for a user on the local node called user@node.
It also seems to take the UAF owner field as a from field. Can I
stop it doing this ?
3. I mentioned a while ago, that I had a symbiont for a Calcomp plotter
for VMS. As promised, I rewrote it completely. The new version uses
the SMB routines rather than the PSM ones, as I found the former
to be better documented. It is a single-threaded asynchronous symbiont
based on the flowchart given in the SMB chapter. It handles STOP/NEXT,
STOP/QUEUE, STOP/RESET, START/QUEUE; it retransmits on negative
plotter acknowledgement and timeouts, and sets the queue stalled
if the plotter fails to respond. It is written in MACRO and might
be a useful template for writing your own symbiont. Requests for
copies to below; I'll collect them and send them all off together
(requests which also have a fix for my problems above will be sent
*immediately* :-))
There is actually a bug in the flowchart given. If you follow the
chart exactly, you could get your symbiont stuck in a "starting"
state if there was a pending entry in the queue when you started
it. This is because the wakeup request for the START_TASK can get
delivered before the $HIBER statement performed after the START_STREAM
stuff. This is fixed in the current version.
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Tom Wade Heanet: T-Wade@ccvax.ucd.hea.irl
Systems Programmer Ean: t-wade@ccvax.ucd.irl
Computer Center PSI: PSI%+27243154000712::T-WADE
University College Belfield Telex: (0500) 91196 UCD EI
Dublin 4. Uucp: !mcvax!euroies!t-wade%ccvax.ucd.hea.irl
Ireland Bitnet: twade@irlearn.bitnet
Voice: +353-1-693244 Ext 2456
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