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  4. how to enume hosts of my LAN

how to enume hosts of my LAN

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  • Y yanping wang

    I need to enume the hosts of my LAN. I have tried to use WNet functions, but with little success. Can anyone provide me a way to achieve this?? thank you very much.

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    224917
    wrote on last edited by
    #2

    Hope this article helps :http://www.codeproject.com/internet/xLANInfo.asp[^]


    suhredayan
    There is no spoon.

    Y 1 Reply Last reply
    0
    • 2 224917

      Hope this article helps :http://www.codeproject.com/internet/xLANInfo.asp[^]


      suhredayan
      There is no spoon.

      Y Offline
      Y Offline
      yanping wang
      wrote on last edited by
      #3

      xLANInfo does not work in my Computer at all. it use the WNet functions. can you provide me another method. thank you very much

      T 1 Reply Last reply
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      • Y yanping wang

        xLANInfo does not work in my Computer at all. it use the WNet functions. can you provide me another method. thank you very much

        T Offline
        T Offline
        ThatsAlok
        wrote on last edited by
        #4

        yanping wang wrote: can you provide me another method. try this :- http://www.codeproject.com/w2k/sumeetnetserv.asp[^]

        "Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

        cheers, Alok Gupta

        2 Y 2 Replies Last reply
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        • T ThatsAlok

          yanping wang wrote: can you provide me another method. try this :- http://www.codeproject.com/w2k/sumeetnetserv.asp[^]

          "Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

          cheers, Alok Gupta

          2 Offline
          2 Offline
          224917
          wrote on last edited by
          #5

          I guess its a 9x machine over there !


          suhredayan
          There is no spoon.

          T 1 Reply Last reply
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          • T ThatsAlok

            yanping wang wrote: can you provide me another method. try this :- http://www.codeproject.com/w2k/sumeetnetserv.asp[^]

            "Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

            cheers, Alok Gupta

            Y Offline
            Y Offline
            yanping wang
            wrote on last edited by
            #6

            Thank you . I download the demo, but it does not work too. we all use Windows SP2 system. Now i have found a way to achieve my purpose. i send ARP request to all Local ip addresses. the ones who reply my request exit in my LAN.

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            • 2 224917

              I guess its a 9x machine over there !


              suhredayan
              There is no spoon.

              T Offline
              T Offline
              ThatsAlok
              wrote on last edited by
              #7

              suhredayan® wrote: its a 9x machine over there ! I don't know? :). But I believe he is facing problem due to XP Service Pack 2. I have no knowledge about it :sigh: do u?

              "Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

              cheers, Alok Gupta

              1 Reply Last reply
              0
              • Y yanping wang

                I need to enume the hosts of my LAN. I have tried to use WNet functions, but with little success. Can anyone provide me a way to achieve this?? thank you very much.

                D Offline
                D Offline
                David Crow
                wrote on last edited by
                #8

                yanping wang wrote: I have tried to use WNet functions, but with little success. Show us the code that is not working. What does it produce?


                "Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

                Y 3 Replies Last reply
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                • D David Crow

                  yanping wang wrote: I have tried to use WNet functions, but with little success. Show us the code that is not working. What does it produce?


                  "Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

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                  Y Offline
                  yanping wang
                  wrote on last edited by
                  #9

                  Thank you for your reply. The problem is that not every hosts have the ablity to enume hosts in LAN by using WNet functions. only the one which is a domain administrator have the ability. so i think the WNet functions do not fit me.

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                  • D David Crow

                    yanping wang wrote: I have tried to use WNet functions, but with little success. Show us the code that is not working. What does it produce?


                    "Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

                    Y Offline
                    Y Offline
                    yanping wang
                    wrote on last edited by
                    #10

                    now I have succefully enumed hosts of my LAN by sending ARP request. but this require to install Ourself protocol driver to send ARP requests(SendARP does not fit). It worked very good.

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                    • D David Crow

                      yanping wang wrote: I have tried to use WNet functions, but with little success. Show us the code that is not working. What does it produce?


                      "Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

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                      Y Offline
                      yanping wang
                      wrote on last edited by
                      #11

                      my demo code is here(using WNet). it can not enume hosts: #include "../common/initsock.h" //#include "Ws2tcpip.h" #include #include #include #include #include CInitSock theSock; // to call WSAStartup function using namespace std; #include "Iphlpapi.h" #pragma comment(lib, "Iphlpapi.lib") #pragma comment(lib, "Mpr.lib") BOOL EnumRes(); void main() { EnumRes(); } BOOL EnumRes() { HANDLE hEnum; DWORD dw = ::WNetOpenEnum(RESOURCE_GLOBALNET, RESOURCETYPE_ANY, 0, NULL, &hEnum); if(dw != NO_ERROR) { printf(" OpenEnum failed \n"); } DWORD cCount = -1; u_char lpBuffer[1024*16]; DWORD cBufferSize = 1024*16; do { dw = ::WNetEnumResource(hEnum, &cCount, lpBuffer, &cBufferSize); NETRESOURCE *pRes = (NETRESOURCE *)lpBuffer; if(dw == NO_ERROR) { for(int i=0; i

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                      • Y yanping wang

                        my demo code is here(using WNet). it can not enume hosts: #include "../common/initsock.h" //#include "Ws2tcpip.h" #include #include #include #include #include CInitSock theSock; // to call WSAStartup function using namespace std; #include "Iphlpapi.h" #pragma comment(lib, "Iphlpapi.lib") #pragma comment(lib, "Mpr.lib") BOOL EnumRes(); void main() { EnumRes(); } BOOL EnumRes() { HANDLE hEnum; DWORD dw = ::WNetOpenEnum(RESOURCE_GLOBALNET, RESOURCETYPE_ANY, 0, NULL, &hEnum); if(dw != NO_ERROR) { printf(" OpenEnum failed \n"); } DWORD cCount = -1; u_char lpBuffer[1024*16]; DWORD cBufferSize = 1024*16; do { dw = ::WNetEnumResource(hEnum, &cCount, lpBuffer, &cBufferSize); NETRESOURCE *pRes = (NETRESOURCE *)lpBuffer; if(dw == NO_ERROR) { for(int i=0; i

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                        D Offline
                        David Crow
                        wrote on last edited by
                        #12

                        yanping wang wrote: it can not enume hosts: Why? Are you getting a runtime error? If so, what? yanping wang wrote: if(pRes[i].dwUsage == RESOURCEUSAGE_CONTAINER) You may want to change this to:

                        if ((pRes[i].dwUsage & RESOURCEUSAGE_CONTAINER) == RESOURCEUSAGE_CONTAINER)


                        "Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

                        Y 1 Reply Last reply
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                        • D David Crow

                          yanping wang wrote: it can not enume hosts: Why? Are you getting a runtime error? If so, what? yanping wang wrote: if(pRes[i].dwUsage == RESOURCEUSAGE_CONTAINER) You may want to change this to:

                          if ((pRes[i].dwUsage & RESOURCEUSAGE_CONTAINER) == RESOURCEUSAGE_CONTAINER)


                          "Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

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                          yanping wang
                          wrote on last edited by
                          #13

                          thank you. the change you made is right. thank you very much

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