NIC will not work, but it did work.

I have a client machine that was built and loaded with SCO UNIX 2.1.3, (yes it is old). The machine worked fine on the closed network that I tested on in my shop. I then had to change it to the network that it would be connected to. Below is the host file, router and subnet mask file that I usually change to make it work.

clt1
IP addresses for all four machines, found in the /etc/hosts
127.0.0.1 localhost

10.78.4.71 srv1
10.75.13.75 srv2
10.75.13.76 clt1
10.96.14.100 clt2

Router location is found at /etc/inet/config line 4c.
4c:/usr/sbin/route::y::add default 10.75.13.65 1

Subnet mask is found in /etc/confnet.d/inet/interface, 2nd to last line of the file.
lo:0:localhost:/dev/loop::add_loop:
TCM5X9:0::/dev/TCM5X9_0:netmask 255.255.255.192 -trailers::
ee16:0::/dev/ee16_0:-trailers::


When I run netstat -rn I should see something like this:
Routing tables Destination Gateway Flags Refcnt Use Interface 10.120.10.78 10.120.10.78 UH 0 0 lo0 default 10.120.10.1 UG 3 4549 TCM5X90 10.120.10 10.120.10.78 U 1 822 TCM5X90 # ifconfig -a TCM5X90: flags=23<UP,BROADCAST,NOTRAILERS> mtu 1500 inet 10.120.10.78 netmask ffffff00 broadcast 10.120.10.255 lo0: flags=49<UP,LOOPBACK,RUNNING> mtu 2048 inet 10.120.10.78 netmask ff000000

But when I run it it only come back with the local host, 127.0.0.1. When you run ping it says "Network Unreachable". The NIC does or did work here before shipping, but I had to test on a closed network.

I must be missing something that needs to be changed.
Thanks for the help,
NC user