Troubleshooting tcp/ip-based telemetry, Troubleshooting tcp/ip-based telemetry on – Vaisala AWS330 User Manual
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Chapter 7 ___________________________________________________________ Troubleshooting
VAISALA ______________________________________________________________________ 215
Troubleshooting TCP/IP-Based Telemetry
Typical possibilities for troubleshooting TCP/IP-based telemetry
operation with the QML logger are as follows:
NOTE
This manual will not attempt to give general guidelines on network
design or troubleshooting issues, such as IP addressing. Troubleshooting
IP networking usually also involves issues not related to the QML logger
or its configuration; this section includes only the troubleshooting
possibilities at the QML logger end.
1. Use
the
warnings command to check for any modem-related
warnings.
2. Use
the
net warnings command to check for any IP-specific
warnings.
3. Use
the
ipconfig command to see the current IP configuration in
the QML logger. The command output gives you information on all
open network interfaces and their configuration, such as IP
addresses, gateways, and DNS servers.
4. Use
the
netif command to see whether the network interface you
are trying to use is open. If required, the interface can be opened
with the command netif open <interface name>.
5.
Check that the IP addresses used for the QML logger interfaces are
correct with respect to your overall network configuration.
6. Use
the
ping command to test the connection to the destination IP
address or host. If the destination cannot be reached, you can test
whether the connection to the gateway works; if it does, the
problem might be in the connection between the gateway and the
destination host.
7.
For the FTP and NTP services, use the commands ftp test <server>
and ntp test <server> to check the connection to the server. You
can also use the ping command to check whether the server is
reachable. Note that if you are accessing the destination server over
the internet, the destination server needs to have a public IP address
or port forwarding rules defined for NAT.
8.
As applicable in your network, ensure that there are no firewalls
blocking the traffic to/from the QML logger and the destination
server.