ipv6

I am developing an Android application and I need to use IPv6 to connect to a server. IPv6 is enabled on the phone and I can see my local IPv6 address with ip addr . I can also successfully ping6 my phone from the PC and viceversa. But hen I try to get local addresses on Android through the Java command NetworkInterface.getNetworkInterfaces() I only get IPv4 addresses. I also tryed to open a client socket but the line Socket s = new Socket(MYSERVERIPV6ADDRESS, PORT); always throws java.net.SocketException: Invalid argument . I am sure the address is correct because I tryed with the same code

net包对于网络I/O提供了便携式接口，包括TCP/IP,UDP，域名解析以及Unix Socket。尽管net包提供了大量访问底层的接口，但是大多数情况下，客户端仅仅只需要最基本的接口，例如Dial，LIsten，Accepte以及分配的conn连接和listener接口。 crypto/tls包使用相同的接口以及类似的Dial和Listen函数。下面对net包进行具体分析。 首先介绍其中常量： const ( IPv4len = 4 IPv6len = 16 ) 很容易看出这表示ip地址的长度（bytes），其中ipv4长度是4，ipv6地址长度是16 变量： 常用的ipv4地址： var ( IPv4bcast = IPv4(255, 255, 255, 255) // 广播地址 IPv4allsys = IPv4(224, 0, 0, 1) // 所有系统，包括主机和路由器，这是一个组播地址 IPv4allrouter = IPv4(224, 0, 0, 2) // 所有组播路由器 IPv4zero = IPv4(0, 0, 0, 0) // 本地网络，只能作为本地源地址其才是合法的 ） 常用的IPV6地址： var ( IPv6zero = IP{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} IPv6unspecified

I got the below error, while calling API from my iOS app (device) to server. My device is connected to IPv6 network & API which i am calling is with IPv4 network. I created the app using swift and i am using Alamofire for calling API and Reachability for checking Internet connection. What should i do for this. Please suggest on the below error. Request failed with error: Error Domain=NSURLErrorDomain Code=-1003 "A server with the specified hostname could not be found." UserInfo= {NSErrorFailingURLStringKey=, _kCFStreamErrorCodeKey=8, NSErrorFailingURLKey=, NSLocalizedDescription=A server with

Preamble In the age of IPv4 things were easy, because an IPv4 address could be converted into a simple 32-bit integer and then used for all kinds of comparative calculations. With IPv6 it is a bit more awkward, because for one thing, 128-bit integers are not natively supported by JavaScript, and their conversion isn't straightforward at all. Which only leaves the option of dealing with a string presentation for IPv6. Question How to convert an IPv6 address of any known format into a comparable string(s)? Requirements For any comparable string, if address A precedes address B then condition A <

I am writing a powershell script that will act as a build compliance test for our servers. One of the things I need to do is detect if IPv6 networking has been disabled. WMI indicates that this information can be found in the IPAddress Property of Win32_NetworkAdapterConfiguration but can be both IPv6 or IPv4. This does not give me a "yes/no" answer I am hoping to find. Other caveats are that I would prefer not to scrape the details by accessing the registry directly, nor scrape from the output of a command such as ipconfig. Given our environment has a mix of 2003/2008 machines, can anyone

I have the following C code for UDP server which would bind to the ipv6 address of the secondary interface tap0. context_t * new_context(const struct sockaddr *listen_addr, size_t addr_size) { context_t *c = malloc( sizeof( context_t ) ); time_t now; int reuse = 1; if (!listen_addr) { fprintf(stderr, "no listen address specified\n"); return NULL; } srand( getpid() ^ time(&now) ); if ( !c ) { perror("init: malloc:"); return NULL; } memset(c, 0, sizeof( context_t ) ); c->sockfd = socket(listen_addr->sa_family, SOCK_DGRAM, 0); if ( c->sockfd < 0 ) { perror("new_context: socket"); goto onerror; }