我们学校用神州数码客户端认证上网，但在ubuntu下安好了那个客户端，怎么认证不了，终端显示如下：

abc@abc-desktop:~$ sudo ./DigitalChina +javahome /usr/lib/jvm/java-6-sun
[sudo] password for abc:
读取属性文件load.properties--->失败！- 原因：文件路径错误或者文件不存在
程序内文件读取成功！load.properties
javax.swing.UnsupportedLookAndFeelException: [The Microsoft Windows Look and Feel - com.sun.java.swing.plaf.windows.WindowsLookAndFeel] not supported on this platform
at javax.swing.UIManager.setLookAndFeel(UIManager.java:528)
at javax.swing.UIManager.setLookAndFeel(UIManager.java:585)
at scut_supplicant.Application1$1.run(Application1.java:113)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:597)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
程序外文件读取成功！configure.conf
--802.1x client for DigitalChina V0.7.4--
读取属性文件message.log--->失败！- 原因：文件路径错误或者文件不存在
16413
Server: listening on port16413
程序内文件读取成功！message.log
●1 >> 寻找服务器，发起认证 (Send EAP_start). [11:47:56]

●2 >> 寻找服务器，发起认证 (Send EAP_start). [11:47:59]

●3 >> 寻找服务器，发起认证 (Send EAP_start). [11:48:00]

提示：超出重试次数或网络操作失败，更换网卡后重试:2.any:Pseudo-device that captures on all interfaces [11:48:01]

※Error5:
网络操作失败，无法发送请求认证报文！请重置网卡后重试。 [11:48:01]
java.io.IOException:
Exception in thread "Thread-4" java.lang.InstantiationException: jpcap.packet.DatalinkPacket
at jpcap.JpcapCaptor.getPacket(Native Method)
at scut_supplicant.client.waitForDate(client.java:1366)
at scut_supplicant.client.run(client.java:1353)
at java.lang.Thread.run(Thread.java:619)
提示：超出重试次数或网络操作失败，更换网卡后重试:3.lo:null [11:48:02]

●4 >> 寻找服务器，发起认证 (Send EAP_start). [11:48:02]

●5 >> 寻找服务器，发起认证 (Send EAP_start). [11:48:03]

●6 >> 寻找服务器，发起认证 (Send EAP_start). [11:48:05]

提示：未找到认证服务器，认证中止! [11:48:06]

是不是IP还是哪里设置不对，请大家指点一下