How To Get A List Of Nodes Connected To Router In Java -

i trying fetch nodes connected router , try control bandwidth of router

   int depth = 10;          //where depth range of ip address         int subdepth = 255;    // subdepth subnet mask of network          int timeout = 500;    // timeout maximum wait host device          string ip = inetaddress.getlocalhost().tostring().split("/")[1];         string tmp = ip.substring(0,                 ip.lastindexof(".", ip.lastindexof(".") - 1))                 + ".";         arraylist<inetaddress> lanmachines = new arraylist<>();         (int j = 1; j < depth; j++) {             (int = 1; < subdepth; i++) {                 inetaddress = inetaddress.getbyname(tmp + j + "." + i);                 if (a.isreachable(timeout))                     lanmachines.add(a);             }         } 

after getting details need control bandwidth of nodes..

no machine added because of this:

for (int j = 1; j < depth; j++) { 

and

int depth=1; 

at first case 1<1 false , cycle body won't executed, declare cycle condition folows:

for (int j = 0; j < depth; j++) { 

edit

your ip address prefix 127.0.xxx.xxx, should ask user ip adress space 192.168.xxx.xxx:

int depth = 1;          //where depth range of ip address int subdepth = 255;    // subdepth subnet mask of network  int timeout = 500;    // timeout maximum wait host device  /*  * user input better  * there exists way lan ip, used  * localhost address 127.0.0.1  */ string ip = fromuser; string tmp = ip.substring(0,             ip.lastindexof(".", ip.lastindexof(".") - 1))             + "."; arraylist<inetaddress> lanmachines = new arraylist<>(); (int j = 0; j < depth; j++) {     (int = 1; < subdepth; i++) {         inetaddress = inetaddress.getbyname(tmp + j + "." + i);         system.out.println(tmp + j + "." + i);         if (a.isreachable(timeout))             lanmachines.add(a);     } } for(inetaddress ina: lanmachines){     system.out.println("found: "+ina.tostring()); }