![]() ![]() Addresses in the range are link local IP addresses.The same applies to 10. addresses, and 172.16.xxx.xxx through 172.31.xxx.xxx. These are reserved for use within an organization. Any address in the range is a private (aka site local) IP address.Any address in the range is a "loopback" address.I am able to get all the IP addresses associated all Network Interfaces, but how do i distinguish them? In summary, InetAddress.getLocalHost() will typically work, but you may need to provide an alternative method for the cases where your code is run in an environment with "complicated" networking. Another variation is to get the preferred IP address from a config file or a command line parameter.A variation of the previous is to get the preferred FQDN from a config file or a command line parameter.(But how do you get it, and how do you deal with a DNS-based load balancer?) Another approach is to (somehow) get the externally advertized FQDN for the host, and use InetAddress.getByName() to look up the primary IP address.One approach is to use NetworkInterface.getNetworkInterfaces() to get all of the known network interfaces on the host, and then iterate over each NI's addresses.What this means is that the IP address returned by InetAddress.getLocalHost() might not be the right one to use. For example, they could be IP addresses for virtual network devices, private network IP addresses, and so on. And to top that, not all IP addresses will be reachable outside of your machine or your LAN. The problem is that a host could have lots of network interfaces, and an interface could be bound to more than one IP address. On the face of it, InetAddress.getLocalHost() should give you the IP address of this host. ![]() ![]() This could be a bit tricky in the most general case. I am able to get all the IP addresses associated all NetworkInterfaces, but how do I distinguish them? This is the output I am getting: 127.0.0.1 InetAddress i = (InetAddress) ee.nextElement() NetworkInterface n = (NetworkInterface) e.nextElement() I am using the following code: Enumeration e = NetworkInterface.getNetworkInterfaces() My PPP Connection IP address is: 117.204.44.192 but the above returns me 192.168.1.2 Or (InetAddress.getLocalHost().getHostAddress()) Using the code: (Inet4Address.getLocalHost().getHostAddress()) Otherwise it must register 127.0.0.1 assuming its the same computer.I need the client to register its PPP IP if available.I tried using cli.getInetAddress() once the client connects to the ServerSocket of bootstrapping node but that didn't work. Now what I need is the node must register its IP to the bootstrapping node. The bootstrapping node maintains a list of Nodes and returns them on being queried. The nodes then create their own ServerSocket and start listening for connections. Now all the nodes create a Socket with a target IP as the IP of a special node known as a bootstrapping node. The Wake on LAN feature dates back over 25 years as a networking standard, and I will wager most people have never used it-there’s no easy way to trigger it from Macs or other consumer devices.I am trying to develop a system where there are different nodes that are run on different system or on different ports on the same system. INet Network Scanner devotes a whole view to Wake on LAN, remote access, and SSH-based commands you can send to capable devices, like Macs and other computers. Instead of fumbling around, you can diagnose the problem and fix the other device’s connection or restart it. Often, when you can’t connect via an app to an Apple device for a particular purpose, like file transfer or screen sharing, it’s because that device isn’t actually advertising the service. The Bonjour browser offers a look both at what’s available and what’s gone wrong when you’re troubleshooting a problem. This is also a handy way to determine hardware has become non-responsive. The app retains a history from the last time it’s scanned and can compare the current network state against what it saw. You can also use this view to determine if something is offline. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |