LOYTEC L-Proxy, User Manual

Page: 36 / 150

L-Proxy User Manual 36 LOYTEC
Version 3.1 LOYTEC electronics GmbH
4.9.4 Option 6 – Enhanced Communications Test
This menu item allows testing the communication path between the CEA-852 device of the
L-Proxy and other CEA-852 devices on the IP channel. It tests the CEA-852 data
communication. This test can be used to determine if there is a working TCP/IP connection
as well as a working CEA-852 connection between the individual devices. The test
thoroughly examines the paths between individual members and the configuration server in
each direction.
A typical console output is shown in Figure 27.
Enhanced Communications Test
============================
Address Result RTT(ms) Comment
------------------------------------------------------------------------
192.168.1.253:1629 (CS) OK 6
192.168.1.250:1628 OK 6
192.168.1.250:1631 OK 6
192.168.1.37:1628 FAILED n/a Peer not reachable
Figure 27: Enhanced Communication Test Console Output
The round-trip value (RTT) is measured as the time a packet sent to the peer device needs
to be routed back to the CEA-852 device of the L-Proxy. It is a measure for general
network delay. If the test to a specific member fails, a text is displayed to describe the
possible source of the problem. The reasons for failure are summarized in Table 4.
A warning Incorrect NAT configuration detected! is displayed if the enhanced
communications test determines that the CEA-852 device of the L-Proxy is operated
behind a NAT router, but it has no NAT address configured. In this case, go to the IP
configuration menu and configure the correct NAT address or set it to Auto-NAT.
Text displayed (Web icon) Meaning
OK, Return path not tested (green
checkmark) Displayed for a device which is reachable but which does not support the
feature to test the return path (device sending to this CEA-852 device).
Therefore a potential NAT router configuration error cannot be detected. If
the tested device is an L-IP, it is recommended to upgrade this L-IP to 3.0 or
higher.
Not reachable/not supported
(red exclamation) This is displayed for the CS if it is not reachable or the CS does not support
this test. To remove this uncertainty it is recommended to upgrade the L-IP to
3.0 or higher.
Local NAT config. Error
(red exclamation) This is displayed if the CEA-852 device of the L-Proxy is located behind a
NAT router or firewall, and the port-forwarding in the NAT-Router (usually
1628) or the filter table of the firewall is incorrect.
Peer not reachable
(red exclamation) Displayed for a device, if it is not reachable. No RTT is displayed. The device
is either not online, not connected to the network, has no IP address, or is not
reachable behind its NAT router. Execute this test on the suspicious device to
determine any NAT configuration problem.
Table 4: Possible Communication Problems
4.10 Data Point Menu
The L-Proxy data point menu as shown in Figure 28 allows the user to list data points, get,
and set values of the data points. Note that the Console data point UI is kept very simple.
For more convenient access to data points, the user may also consult the Web UI (see
Section 5.2.6).