TELES VoIP Box BRI Series, Reference Manual

Page: 199 / 226

9 Troubleshooting
VoIPBox DSL / VoIPBox BRI – version 21.0.009 Page 199
Symptoms
|
The gateway cannot be accessed from remote.
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There is ethernet activity on the gateway.
|
Ping works if you connect directly to the gateway.
|
The gateway can be accessed via GATE Manager if you
connect directly to the gateway.
Solution
|
Make sure there is ethernet activity by checking the
ethernet port LEDs (please see Chapter 3.7 LED
Functionality
→
). If the LED that indicates data traffic is
not blinking, the ethernet cable is probably defect.
Please replace the cable and check whether this solves
your problem.
|
If the problem persists, connect your computer directly
to the gateway using a crossover cable. Make sure your
computer uses the same IP range as your gateway.
|
Send a Ping from your computer to the gateway and wait
for the corresponding ICMP echo to make sure that the
system can be accessed using ICMP.
|
From the connected computer, use GATE Manager to
access the system and make sure that this access is
working as well.
|
If steps 1 to 4 are working, most likely a firewall or NAT /
PAT issue is causing the connection problem. Check your
firewall or NAT / PAT settings and adjust them to let
traffic pass through to your system.
9.1.5 ISDN dial-in number missing or wrong
In systems with a BRI / PRI interface, ISDN access can be im-
paired due to faulty or missing configurations of dial-in num-
bers.