Specifications

Chapter 5 Connecting to an ISP
Configuring Captive ISP on the JACE-4/5
Niagara Release 2.3
Niagara Networking & Connectivity Guide Revised: May 22, 2002
5–21
You can also receive limited troubleshooting information when using the
ispConnection object. See the “Using the IspConnection Object to Control
Disconnects” section on page 5-15.
Avoiding
Automatic
Disconnects
Some ISPs disconnect a host when it has not sent or received packets for a period of
time. If your JACE is subject to this automatic disconnect you can configure the
JACE to periodically update its time. Add the TimeSync service to the station and
configure it so the JACE requests a time update more frequently than the ISP’s
disconnect period of time.
For more information on configuring the time synchronization service, see the
Niagara Standard Programming reference. See also “Changing the Time
Synchronization Port,” page 6-17.
[modem:COM2 ] Initializing modem with ATE0Q0V1X4&D2&K3\N3%C2&C1&Q5W2. Modem is initialized, and dials the ISP.
Receives a
NO DIALTONE error.
[modem:COM2 ] Wrote 31 bytes to modem.
[modem:COM2 ] Received OK on init.
[modem:COM2 ] Dialing <ATDT4971020>.
[modem:COM2 ] Wrote 12 bytes to modem.
[modem:COM2 ] Dial response was <NO DIALTONE>.
[modem:COM2 ] Received error trying to process 2 msg.
[modem:COM2 ] Detected dropped CD in hangup.
[modem:COM2 ] Sleeping 5 seconds to make sure line is clear.
[rasmgr] Unable to achieve CONNECTED_AS_CLIENT_STATE to connect. RAS manager sees the error and starts
the hangup process.
[rasmgr] Attempting to hangup.
[modem:COM2 ] Received hangup request.
<additional lines removed>
[rasmgr] Hungup successfully.
[rasmgr] Attempting to listen. RAS manager initiates the listen process
(as defined by the dialOutOnly property
of the ras.properties file).
[modem:COM2 ] Received listen request.
<additional lines removed>
[rasmgr] Listening successfully.
[rasmgr] Handler loop pass. Execution cycle begins again. If the ISP
connection schedule indicates that a
connection is required, the RAS
manager starts the connection process
again. Otherwise, the normal execution
cycle continues until the RAS manager
receives a connection request.
Example 5-1 Typical connection troubleshooting information as written to the VxWorks target shell.
Troubleshooting Information Description