Ceduna Observatory Network

The Ceduna observatory has the following subnet information:

Router/Gateway address:131.217.61.1
Network Mask:255.255.255.0

University Network

The network is connected to the University via a Cisco VPN router at 131.217.61.1. As such, all machines on the Ceduna network should use this address at the gateway, and the standard University name servers (131.217.1.19 and 131.217.10.1).

Physical network

There are three separate physical networks at Ceduna: a thin LAN on coaxial cable with BNC connectors, an ethernet LAN and a wireless LAN.

The ethernet LAN is based in the control room, and is hosted from a D-link switch at the back of the rack that holds cdvsi. This LAN is capable of 10/100 Mbps and is auto-sensing. There are several ports wired in around the control room, and most of the computers in the racks are on this LAN. There is an ethernet run up the telescope, which goes to a hub in the LER, which also has the IPS on it, then from this hub up to the UER. The cable coming up through the twister, and the cable going up to the UER are patched to the LER room through extenders in the azimuth drive room on the cable tray.

There is an ethernet cable running to the ip camera at Ceduna 2. On the same route there are two unused ethernet cables heading out above door.

The thin LAN is used to connect the older hardware in the observatory and should be phased out in the near future. It runs in a loop around the control room, and has two separate cable runs from the main rack to the telescope, stopping first in the lower equipment room before proceeding to the upper equipment room. Ensure all wall ports are connected and/or terminated in 50 Ohms in order for the thin LAN to function correctly.

The current state of the Ceduna thin LAN

The wireless LAN is described completely here.

There are two crossover points:

  • The wireless LAN meets the ethernet LAN through the Cisco VPN router installed near the printer.
  • The thin LAN is connected to the ethernet LAN through a hub with both a BNC connection and ethernet ports. This hub is located in the main rack behind the station clock.

Logical network configuration

The names and addresses of computers on the Ceduna network are given in the table below:

IP addressComputer nameMACNetworkNotes
131.217.61.1ceduna-ceduna.gw00:19:56:b0:63:ccwireless and ethernet 
131.217.61.130bowen52:54:05:e1:d3:cfethernet 
131.217.61.131ellis08:00:20:22:86:5ethin 
131.217.61.132ceduna00:60:97:63:1f:2athinunable to make output on ethernet port
131.217.61.134newceduna00:19:db:a6:f3:a8ethernet 
131.217.61.141sys30m00:00:c0:fe:14:8athin 
131.217.61.142rakbus-ced00:00:c0:c5:8a:7aethernetusing AUI to ethernet media converter
131.217.61.143sam30m00:00:c0:f7:71:e1ethernetusing AUI to ethernet media converter
131.217.61.146corr-ced00:00:e8:47:f9:69thinshould be capable of ethernet, similar to Hobart's correlator
131.217.61.150cdmaser00:00:c0:51:49:d0thin 
131.217.61.163deebee00:10:dc:56:ba:a2ethernet 
131.217.61.169agilentcd etherneton ethernet hub in UER
131.217.61.171tac32cd00:40:05:4e:19:1bethernet 
131.217.61.172cdvsi00:e0:81:54:d5:63ethernet 
131.217.61.174sille52:54:05:e1:d1:b1ethernet 
131.217.61.175xserve-ced ethernetuses uppermost ethernet connector
131.217.61.180cdbaldor00:b0:d0:ac:66:49thinvia thin LAN LER
131.217.61.187printserve-ced00:60:b0:2d:4e:a4ethernet 
131.217.61.189lerips etherneton ethernet hub in LER
131.217.61.???rakips ethernet