當連接SAP時，有防火牆且需要配置Router信息（DestinationDataProvider.JCO_SAPROUTER ,jco.client.saprouter），而沒有配置，將報如下錯誤:
com.sap.conn.jco.JCoException: (102) RFC_ERROR_COMMUNICATION: Connect to SAP gateway failed
Connection parameters: TYPE=A DEST=AS ASHOST=172.18.28.4 SYSNR=00 PCS=1
LOCATION CPIC (TCP/IP) on local host with Unicode
ERROR partner '172.18.28.4:3300' not reached
TIME Mon Jul 09 09:50:13 201
RELEASE 711
COMPONENT NI (network interface)
VERSION 39
RC -10
MODULE nixxi.cpp
LINE 3151
DETAIL NiPConnect2: 172.18.28.4:3300
SYSTEM CALL connect
ERRNO 10060
ERRNO TEXT WSAETIMEDOUT: Connection timed out
COUNTER 2
at com.sap.conn.jco.rt.MiddlewareJavaRfc.generateJCoException(MiddlewareJavaRfc.java:615)
at com.sap.conn.jco.rt.MiddlewareJavaRfc$JavaRfcClient.connect(MiddlewareJavaRfc.java:1280)
at com.sap.conn.jco.rt.ClientConnection.connect(ClientConnection.java:661)
at com.sap.conn.jco.rt.PoolingFactory.init(PoolingFactory.java:103)
at com.sap.conn.jco.rt.ConnectionManager.createFactory(ConnectionManager.java:171)
at com.sap.conn.jco.rt.DefaultConnectionManager.createFactory(DefaultConnectionManager.java:44)
at com.sap.conn.jco.rt.ConnectionManager.getFactory(ConnectionManager.java:160)
at com.sap.conn.jco.rt.RfcDestination.initialize(RfcDestination.java:789)
at com.sap.conn.jco.rt.RfcDestination.ping(RfcDestination.java:1002)
Caused by:
RfcException: [null]
message: Connect to SAP gateway failed
Connection parameters: TYPE=A DEST=AS ASHOST=172.18.28.4 SYSNR=00 PCS=1
LOCATION CPIC (TCP/IP) on local host with Unicode
ERROR partner '172.18.28.4:3300' not reached
TIME Mon Jul 09 09:50:13 201
RELEASE 711
COMPONENT NI (network interface)
VERSION 39
RC -10
MODULE nixxi.cpp
LINE 3151
DETAIL NiPConnect2: 172.18.28.4:3300
SYSTEM CALL connect
ERRNO 10060
ERRNO TEXT WSAETIMEDOUT: Connection timed out
COUNTER 2
Return code: RFC_FAILURE(1)
error group: 102
key: RFC_ERROR_COMMUNICATION
at com.sap.conn.rfc.engine.RfcIoControl.error_end(RfcIoControl.java:255)
at com.sap.conn.rfc.engine.RfcIoControl.ab_rfcopen(RfcIoControl.java:94)
at com.sap.conn.rfc.api.RfcApi.RfcOpen(RfcApi.java:83)
at com.sap.conn.jco.rt.MiddlewareJavaRfc$JavaRfcClient.connect(MiddlewareJavaRfc.java:1273)
... 31 more