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of your network in the following screen.
Equipment in the process of installation and debugging and use hard to avoid some
problems, these failures may be due to network impassability, platform or the device itself,
then can use equipment bring about location of diagnostic tools.
Choose menu system==
》
Diagnostic tools==
》
Ping,If there is no ban ping in pinging the
target, the ping tool can determine whether the network flow.Shown as Figure 24,This
machine can through the WAN port ping this IP “172.16.0.90”.If you want to testing
equipment under whether IAD or PC, you can change the source IP interface under ping IAD
or PC.
Figure 24
ping tool
Choose Menu system==
》
TCP dump, Tool can catch some packages to analyze
positioning problem.Shown as Figure 25.You can choose only grab the SIP package, also can
grab all the UDP packet, can also choose to grab all the packages.Every time capture can
catch 2000 packages, 2000 packages and stop the time caught, so not all problems are suitable
for caught inside the equipment.Generally registered failure, don't shout into the exhaled, etc
can be caught, use Tcpdump to select only the SIP package.If you need to grab other packages,
such as to grasp the RTP packets, enable the best equipment of image features Wireshark to
