紧急求救ldap用户验证的问题！！急急急（在线等，搞定就结贴）

我现在讲服务器也换为win 2000,tomcat4,了，为何相同的配置在我的机器上能正确执行，然而在另一台上不行呢？
出错信息如下：
javax.naming.CommunicationException: 10.210.1.25:3268.  Root exception is java.n
et.ConnectException: Connection timed out: connect
        at java.net.PlainSocketImpl.socketConnect(Native Method)
        at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:305)
        at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:171)
        at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:158)
        at java.net.Socket.connect(Socket.java:434)
        at java.net.Socket.connect(Socket.java:384)
        at java.net.Socket.<init>(Socket.java:291)
        at java.net.Socket.<init>(Socket.java:119)
        at com.sun.jndi.ldap.Connection.createSocket(Connection.java:346)
        at com.sun.jndi.ldap.Connection.<init>(Connection.java:181)
        at com.sun.jndi.ldap.LdapClient.<init>(LdapClient.java:119)
        at com.sun.jndi.ldap.LdapClient.getInstance(LdapClient.java:1668)
        at com.sun.jndi.ldap.LdapCtx.connect(LdapCtx.java:2556)
        at com.sun.jndi.ldap.LdapCtx.<init>(LdapCtx.java:275)
        at com.sun.jndi.ldap.LdapCtxFactory.getUsingURL(LdapCtxFactory.java:173)        at com.sun.jndi.ldap.LdapCtxFactory.getUsingURLs(LdapCtxFactory.java:191
)
        at com.sun.jndi.ldap.LdapCtxFactory.getLdapCtxInstance(LdapCtxFactory.ja
va:136)
        at com.sun.jndi.ldap.LdapCtxFactory.getInitialContext(LdapCtxFactory.jav
a:66)
        at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:6
62)
        at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:243
)
        at javax.naming.InitialContext.init(InitialContext.java:219)
        at javax.naming.InitialContext.<init>(InitialContext.java:195)
        at javax.naming.directory.InitialDirContext.<init>(InitialDirContext.jav
a:80)
        at org.apache.jsp.log_ok_jsp._jspService(log_ok_jsp.java:134)
        at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:137)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
        at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper
.java:210)
        at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:2
95)
        at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:247)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:193)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV
alve.java:256)
        at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContex
t.invokeNext(StandardPipeline.java:643)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.jav
a:480)
        at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV
alve.java:191)
        at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContex
t.invokeNext(StandardPipeline.java:643)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.jav
a:480)
        at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)        at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:
2415)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j
ava:180)
        at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContex
t.invokeNext(StandardPipeline.java:643)
        at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatche
rValve.java:171)
        at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContex
t.invokeNext(StandardPipeline.java:641)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j
ava:172)
        at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContex
t.invokeNext(StandardPipeline.java:641)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.jav
a:480)
        at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal
ve.java:174)
        at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContex
t.invokeNext(StandardPipeline.java:643)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.jav
a:480)
        at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)        at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:22
3)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java
:594)
        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.proce
ssConnection(Http11Protocol.java:392)
        at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java
:565)
        at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadP
ool.java:619)
        at java.lang.Thread.run(Thread.java:536)
谢了！