problems with KIP0688 and CAP5.0 on Sparkstation1

[MLMCKEE at AUDUCVAX.BITNET]

In the v8n156 issue of Sun Spots, ralerche at lindy.stanford.edu summarized
the best way to 'spool mac laserwriter output on a sun'.  The method of
choice was KIP running on a Kinetic FastPath and CAP running on the sun.
the code had not been installed so no information was available on how
difficult that would be.  I downloaded KIP0688 and CAP5.0 from
uunet.uu.net, read all the documentation and attempted to install the
software.  the fast path we have is Version 4 (K-star Version 7.0) and my
sun is a sparkstation (4.0.3c).  the sun is running yp, is designated the
administrator for the K-box but is not a server.  the sun is on a LAN
ether network with PC's and (via the FastPath) MAC's.  /etc/services has
been modified to include the udp ports starting at 200 (this requires
option 11 in the K-box configuration file.  The /etc/atalkad deamon was
started with the /etc/atalk.local file given below:

21.42 50 the Chem Zone
20.1 2 131.204.42.2

and the /etc/atalkatab file:

21.42  N1  131.204.42.0  KSL         #sun, appletalk-in-IP
21.42  N1  131.204.42.0  CSLI        #chemistry, appletalk-in-IP
20.1   KC  131.204.42.2  CSLI        #fastpath, localtalk
       I131.204.42.255 I131.204.2.10 #ipbroad ipname=nameserver
       I131.204.42.50  L0            #ipdebug ipfile
       L0 L0 L0 L0     S0 S200       #ipother atnetet ddprangestart
       Lx0             S0 S40        #flags ipstatic ipdynamic
       S20.1   S21.42                #atneta atnete

(the sun is 131.204.42.50 and the K-box is 131.204.42.2 on a class-b net)
     The first test is to run atlook which checks to see if the sun
can see anything on appletalk.  When atlook is executed the following is
produced:

abInit: [ddp:  21.42, 50] starting
Looking for =:=@* ...

and then atalkad core dumps (at inet_ntoa() at 0xf777a860).  Has anyone
encountered this before? (I contacted ralerche at lindy.stanford.edu and he
said that atalkad core dumped for him too; at which point he switched to
TOPS for sun).  any ideas on what to try next?