jpcap

问题 Error is :Exception in thread "main" java.lang.UnsatisfiedLinkError: jpcap.JpcapCaptor.getDeviceList()[Ljpcap/NetworkInterface; at jpcap.JpcapCaptor.getDeviceList(Native Method) at jcap.network.main(network.java:63) import jpcap.*; import jpcap.packet.*; import java.io.*; import jpcap.packet.TCPPacket.*; import java.io.*; import jpcap.JpcapCaptor.*; class Network implements PacketReceiver { System.out.println(System.getProperty("java.library.path")); String sp=null; String dp=null; String

问题 Error is :Exception in thread "main" java.lang.UnsatisfiedLinkError: jpcap.JpcapCaptor.getDeviceList()[Ljpcap/NetworkInterface; at jpcap.JpcapCaptor.getDeviceList(Native Method) at jcap.network.main(network.java:63) import jpcap.*; import jpcap.packet.*; import java.io.*; import jpcap.packet.TCPPacket.*; import java.io.*; import jpcap.JpcapCaptor.*; class Network implements PacketReceiver { System.out.println(System.getProperty("java.library.path")); String sp=null; String dp=null; String

问题 i am using netbeans ide and trying to capture packets using jpcap library. my program used to run correctly before bu suddenly this error Exception in thread "main" java.lang.UnsatisfiedLinkError: no jpcap in java.library.path is appearing. i have tried ds on my other computer too but in vain .. i have added jpcap library and before installing i cleared older version completely. have done everythng available .i am seriously in trouble please help! 回答1: Add this to the beginning of your

问题 i want to add jpcap.jar the path is this: C:\WINDOWS\Sun\Java\lib\ext how to do this? import java.lang.ClassLoader; is it needed? or: System.loadLibrary('what must be in here?'); or: System.load(???); suppose this code: public void receivePacket(Packet packet) { System.out.println(packet); if (packet instanceof IPPacket) { IPPacket ipp = (IPPacket)packet; InetAddress dest = ipp.dst_ip; InetAddress src = ipp.src_ip; System.out.print(src); System.out.print(dest); } in the main i have this: s

问题 When I try to use JpCap Writer to save packets to a file, it causes JVM to crash. Code: captor=JpcapCaptor.openDevice(interfaceList[interfaceNumber], 65535, true, 20); captor.setFilter("ip and tcp",true); JpcapWriter writer=JpcapWriter.openDumpFile(captor,"write.txt"); for(int i=0;i<10;i++){ Packet packet=captor.getPacket(); writer.writePacket(packet); } writer.close(); Crash info: # # A fatal error has been detected by the Java Runtime Environment: # # SIGSEGV (0xb) at pc=0x00007f283105953a,

问题 How can I pull relevant packet information from a JpCap packet? I am trying to find the source/destination ip and port. So far I have tried string parsing the Packet's toString() method, but that seems brutish. 回答1: You have to cast the Packet object to the correct type of Packet i think. So something like: TCPPacket p = (TCPPacket)packet; // Get the tcp src and dest ports int destPort = p.dst_port; int srcPort = p.src_port; // Get the src and dest IP addresses from the IP layer InetAddress

问题 A newbie here so apologies in advance for asking anything silly/obvious. I am trying to run a java application on a Gumstix overo board (linux kernel 2.6.34). So far, I have installed JamVm (jvm), jikes compiler and classpath libraries (as per instructions in this tutorial). I have run a HelloWorld program and it seemed fine. Now when I try to run another application (say 'MyApp') that uses 'jpcap' libraries, the jvm gives me an error that looks like this: Exception during event dispatch:

问题 I would like to monitor the ipv6 devices using ping6 request. Please let me know is there any open source library is available to send and receive Ping6 request. I tried with JpCap but couldn't succeed and I got the below error message java.io.IOException: only IPv4 packet is supported at jpcap.JpcapSender.nativeSendPacket(Native Method) at jpcap.JpcapSender.sendPacket(JpcapSender.java:93) at Ping6.sendPing6Request(Ping6.java:131) at Ping6.main(Ping6.java:40) Please help me how to solve this

问题 This may seem a very stupid question, but I'm facing a lot of trouble with installing jpcap. I'm new to Ubuntu and unaware of it's architecture, it would be very helpful if you could tell me the process step by step with descriptions. Presently I'm having the files jpcap-0.7.tar.gz, bison-2.4.1.tar.bz2, m4-1.4.13.tar.gz, flex-2.5.35.tar.gz, libpcap-1.3.0.tar.gz. I read somewhere that these files are required for installing jpcap... Thanks in advance. 回答1: Installing from a DEB will be your

问题 I want to create a module that capture packets ( like Shark for Root app in Android). Can i use JPCAP library (Java)? Do i need to root my Android phone to capture packets? 回答1: Can i use JPCAP library (Java)? Not directly. It relies upon JNI, presumably for accessing libpcap . You would need to modify the build process to use Android's NDK. It is conceivable that this would require no code changes, but that's far from certain. Also, it is possible that the Java code for JPCAP requires