TCP/IP setting for communications Subscription Unicast
Multicast UDP Communications troubleshooting
Slide 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)
Slide 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
Slide 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 1s 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
Slide 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
Slide 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.
Slide 8
Network settings (Computer) Configure Laptop to be able to
connect to the default IP address 192.168.117.220
Slide 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
Slide 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.
Slide 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
Slide 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
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
Slide 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
Slide 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
Slide 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.
Slide 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.