Part of the Triarch
system. A PC
and two TCP/IP stack
s, which provides network address translation
from a client network to the vendor
network, as well as DNS
service for the client-side
NATed IP's of servers on the vendor network.
One reason for this is that the Triarch system is usually placed on totally private networks, which set up IP subnets without regard to Internet allocation. Therefore no one subnet could be used and be guaranteed to work on all customer sites, so a NATing box is provided. In order to easily access vendor services, the box provides DNS based on the NATed addresses.