1. Terralite Solutions

2.  TCP/IP setting for communications  Subscription  Unicast  Multicast  UDP  Communications troubleshooting

3. TCP/IP setting for communications –Make-up of IP address –Subnet Mask –Gateways –Routing –Entering the network settings (Computer) –Entering the network settings (Trimble equipment)

4. Make-up of IP address  IP addresses are 32 bits XXX.XXX.XXX.XXX  XXX – is made up of on an 8 bit address  8 Bit address range 0000 0000 = 0 1111 1111 = 255  1111 1111 = 128+64+32+16+8+4+2+1 = 255  Example 128 = 1000 0000, 1 = 0000 0001

5. Subnet Mask  There may be a need to separate networks this is done via the Subnet mask field.  It is made of a 32 bit field xxx.xxx.xxx.xxx  The number is bits not used defines the maximum number of hosts, but all 0 or 1’s are reserved. Thus we subtract 2 hosts from the total number available.  Ex 255. 255. 255. 224 (11111111.11111111.11111111.11100000)  5 zeros left – 2 ^ 5 = 32 (minus 2 which are reserved) Will leave you with 30 hosts addresses

6. Gateway  The subnet mask divides IP addresses into different networks.  The Gateway always the different networks to communicate with each other.  The Gate address is an IP address.  It is the IP address to go to for IP addresses outside of your subnet

7. Routing  Routing determines a path to the appropriate device.  It could be as simple as tables or the use of complex algorithms.  There are also Routing schemes we will look at Unicast, multicast and subscription later.  In essence routing is one device forwarding the data to another device in order to reach the correct device in an efficient manner.

8. Network settings (Computer)  Configure Laptop to be able to connect to the default IP address 192.168.117.220

9. Subscription  Subscription mode is where the individual clients request to have information sent to them.  In our case the receivers ask the reference stations for the RTK Packets

10. Unicast  Unicast is where the information is sent to an individual network node.  In our case that might be from a Reference station to a third party server.

11. Multicast  Multicast is where information is sent from one or more points to a set of other points.  In this case there may be one or more senders, and the information is distributed to a set of receivers.  The Reference station does not track which devices are using its correcton

12. User Datagram Protocol (UDP)  UDP is a protocol for communications  UDP has the following characteristics  Simple transmission model without provisions for reliability, ordering, or data integrity

13. Trimble Settings IX100 Differential Corrections

14. Troubleshooting  Checking Settings  Loopback Address  Ping  Tracert

15. Checking Settings  On windows machines, use the command window to quickly check your computers settings.  Ipconfig /all  This will give you your IP address, Subnet Mask, Default Gateway, DNS settings, DHCP settings as well as your computers MAC address

16. Ping  The Ping test is the most common form of network test.  Type ping and the IP address you wish to check  The PING test measures the time it takes the packets to go from the selected testing monitoring location to the host tested. The test results display the shortest, the average and the maximum round-trip times and packet loss rate between hosts. It also tells how many packets were and were not received.  Usage ping 192.168.0.1

17. Loopback Address  The Loopback address is an IP address that the computer can use to check its own Network Interface card.  A ping will sent and will be rerouted back to the source without intentional processing or modification.  The loopback Address is 127.0.0.1  Usage ping 127.0.0.1

18. Tracert  Usage: tracert IP Address  The Trace Route command is used to identify bottle necks in the network.  The Tracert command will give you information on the route taken as well as Transit times.

19. Site Requirements  In most instances the use of the diagnostic tools on the Trimble equipment will provide sufficient information on the status of the network.  The Troubleshooting tools here are to provide you with additional information they may help you resolve issues.