I believe that is because someone outside your firewall may guess you IP
address. I think that was the only reason for not having a server ending in one.

James

> -----Original Message-----
> From: HP-3000 Systems Discussion [mailto:[log in to unmask]]On
> Behalf Of John Burke
> Sent: Thursday, August 20, 1998 11:22 AM
> To: [log in to unmask]
> Subject: Re: VT and IP Tunneling
>
>
> 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
> [log in to unmask]
>