Yamaha fwx120 Operation Manual page 174

Troubleshooting
Q4
Symptom

The VPN
communication
of the IPsec
connection is
slow.
L2TP/IPsec
cannot be
configured for the
terminal.
L2TP/IPsec-based
VPN connection
8
cannot be
established.
174  FWX120 Operation Manual
VPN communication cannot be
established
Cause

The Internet connection is
slow.
The terminal does not support
L2TP/IPsec.
The service of L2TP/IPsec is
not enabled.
The IPsec setting is not
correct.
The PPP setting is not correct.
The terminal setting is not
correct.
Communication with the
destination c annot be
established.
(Continued from the previous page)
Remedy
Troubleshoot according to the
explanation of "Q3 Internet connection
cannot be established" (page 171).
Prepare a terminal that supports L2TP/
IPsec. For the configuration procedure,
refer to the manual of the terminal.
Enable the service of L2TP/IPsec.
(Configure as "l2tp service on".)
• Check if the pre-shared key of IPsec
is correct.
• Check the type of tunnel interface.
(tunnel encapsulation l2tp)
• Check if the ID and password for the
PPP authentication are correct.
• Check that the tunnel interface is
bound in the PP interface. (pp bind
tunnel1)
• Check if the destination address and
the host name are correct.
• Check if the pre-shared key of IPsec
is correct.
• Check if the user ID and password
for PPP authentication are correct.
If user ID or password is not correct,
change to the correct one.
• For the configuration of the terminal,
refer to the manual of the terminal.
Execute the ping command to the
destination IP address, and check
whether a response is returned.
If no response is returned, check
whether communication is enabled in
the destination device.