FWX120 Operation Manual
173
8
Troubleshooting
VPN communication
cannot be established
Q4
Symptom
Cause
Remedy
In the top page
of the “Basic
configuration
page”, the
message
“Connected” is
not displayed for
the IPsec tunnel
connection.
Internet connection cannot be
established.
• Check whether the setting for Internet
connection has been configured.
• Troubleshoot according to the
explanation of “Q3 Internet
connection cannot be established”
(page 171).
Communication cannot be
established with the destination
of IPsec connection.
Execute the ping command to the
destination IP address of IPsec, and
check whether a response is returned.
If no response is returned, check
whether communication is enabled in
the destination device.
VPN
communication
cannot be
established
through IPsec
connection.
IPsec connection is not
established.
• Check whether the same pre-
shared key as the IPsec connection
destination is specified.
• Check whether the correct IP address
and correct name are specified in
the method used to identify the
destination.
• Check whether the same
authentication algorithm and
encryption algorithm as the IPsec
connection destination are specified.
Incorrect routing information
has been configured.
Configure the correct destination
LAN network address for the routing
information.
The setting is not correct
in the PC connected to the
destination LAN.
• Check the setting of the application
software used for communication.
• If the Firewall function is enabled in
the PC, change the Firewall setting
so as not to block packets used for
communication.
In Windows 7, on the window that
appears by clicking “Start” - “Help
and Support”, enter “Firewall” in the
search field, and carry out a search.
Relevant information is displayed.
Troubleshoot according to the
instruction.