there is tcpdump for ultrix, but i dont think that there are hooks for 
bpf in the ci stuff. well, check the source :) 
host number? i think they mean node number, a decnet thing. 
probably you have to set it up with decnet first, and then give it an ip 
number too.. 
just my guess
isildur

On Sun, 9 Jun 2002, Gunther Schadow wrote:

> Hi,
> 
> I have now the two VAX6450s with CIBCA and connected through the
> star coupler. I was eager to see them talk IP through the CI
> but unfortunately it doesn't work. I'm under Ultrix 4.5 and I
> use
> 
> ifconfig scs0 inet 192.168.17.1 netmask 255.255.255.0
> 
> on the one machine and
> 
> ifconfig scs0 inet 192.168.17.2 netmask 255.255.255.0
> 
> on the other machine. If I check the status with just
> 
> ifconfig scs0
> 
> It says it's up and fine. But ping self doesn't work and ping
> each other doesn't work either. From reading the scs man
> page, it mumbles something about host numbers having to be
> between 1 and 15. But I have no clue what they mean. I don't
> know my CI node numbers either. I'm wondering if I should
> know those and configure them somehow. I also wonder if this
> SCS IP has some arp? Would be really cool to have tcpdump
> for Ultrix. What's the best way to step by step get a CI
> system debugged?
> 
> thanks,
> -Gunther
> 
> 
> -- 
> Gunther Schadow, M.D., Ph.D.                    gschadow@regenstrief.org
> Medical Information Scientist      Regenstrief Institute for Health Care
> Adjunct Assistant Professor        Indiana University School of Medicine
> tel:1(317)630-7960                         http://aurora.regenstrief.org
> 
> 
>