One thing I forgot to point out: the only thing I can see that
distinguishes the machines I can VT to from the ones I cannot VT to is
the IP. Note that the two machines I cannot VT to through the firewall
using IP tunneling have IP addresses ending in 1. Somewhere in the deep
dark recesses of my mind, amidst all the clutter, I seem to recall
reading/hearing that having a server with an IP address ending in 1 was
a bad idea. But I don't recall why. And of course it could simply be a
figment of my warped imagination.

-----Original Message-----
From: John Burke [mailto:[log in to unmask]]
Sent: Thursday, August 20, 1998 6:56 AM
To: [log in to unmask]
Subject: VT and IP Tunneling


We recently installed Checkpoint software on Windows NT for our firewall
and are experimenting with IP Tunneling to access our systems from the
Internet. Everything seems to work fine except VT using WRQ's
Reflection, which works reliably on two machines and not at all on our
other two machines.

We have two machines at each of two locations. We can connect to one
machine at each location, but not the other. As far as I can tell, all
four machines are configured the same way for networking. When we use
direct dial-up networking we can VT to all systems with no problems at
all.

The set-up is as follows:

Site 1         IP                     Site 2           IP

Machine A      n.m.64.1               Machine C        n.m.56.1
Machine B      n.m.64.3               Machine D        n.m.56.3

We can VT to machines B and D with no problem, but when we try to
connect to either machine A or C, we get the following on the console:

** NS/3000 INTERNAL ERROR IN DSDAD; Job: 0; PIN: 347; Info: 0
- Error: 41;
- Miscellaneous   : 1
** NS/3000 INTERNAL ERROR IN DSDAD; Job: 0; PIN: 347; Info: 0
- Error: 42;
- Miscellaneous   : 0
** NS/3000 INTERNAL ERROR IN DSDAD; Job: 0; PIN: 347; Info: 0
- Error: 43;
- Miscellaneous   : 11
** NS/3000 NetIPC ERROR IN DSDAD; Job: 0; PIN: 347
- Error: 44;
- Socket error    : 116; DESTINATION UNREACHABLE.

I'm stumped. I've never seen these errors before. Any ideas?

John Burke
Pacific Coast Building Products
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