ipv6 | 易学教程

IPv6 connectivity test in C++

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问题 Is there any C++ function to test whether the computer on which my program is running supports IPv6 connectivity? I need to know something like result of this page http://test-ipv6.com/, but in C++. EDIT: I was trying to use getifaddrs() . But return value can be AF_INET6 found , because I really have IPv6 address set, but IPv6 connectivity does not work (probably because ISP). So is there some way how to check if IPv6 connectivity works indeed? 回答1: All modern operating systems support IPv6,

Jesey Client on JBoss 7.1.1 throw java.net.SocketException: Protocol family unavailable for IPv6 address

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问题 I'm trying to connect using Jersey Client to a REST service. When I'm using IPv4 address everything works fine. When I'm trying to replace the server address with its IPv6 the following exception is thrown: com.sun.jersey.api.client.ClientHandlerException: java.net.SocketException: Protocol family unavailable at com.sun.jersey.client.urlconnection.URLConnectionClientHandler.handle(URLConnectionClientHandler.java:128) at com.sun.jersey.api.client.Client.handle(Client.java:551) at com.sun

Check if a string contains an IPV6 address in PHP

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问题 Using PHP, I need to check if a string contains an IPv6 address - and then extract that IPv6 address if it does. I've got a regex that is matching a string if it's exactly an IPv6: $matches = []; $regex = '/^(((?=.*(::))(?!.*\3.+\3))\3?|([\dA-F]{1,4}(\3|:\b|$)|\2))(?4){5}((?4){2}|(((2[0-4]|1\d|[1-9])?\d|25[0-5])\.?\b){4})\z/i'; preg_match($regex, $ipv6, $matches); What I'm stuck with is being able to add a wildcard on either side, so I can match things like: http://2001:0db8:85a3:0000:0000

LeetCode 468. 验证IP地址

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1. 题目编写一个函数来验证输入的字符串是否是有效的 IPv4 或 IPv6 地址。 IPv4 地址由十进制数和点来表示，每个地址包含4个十进制数，其范围为 0 - 255，用(".")分割。比如，172.16.254.1；同时， IPv4 地址内的数不会以 0 开头。比如，地址 172.16.254.01 是不合法的。 IPv6 地址由 8组 16进制的数字来表示，每组表示 16 比特。这些组数字通过 (":")分割。比如, 2001:0db8:85a3:0000:0000:8a2e:0370:7334 是一个有效的地址。而且，我们可以加入一些以 0 开头的数字，字母可以使用大写，也可以是小写。所以， 2001:db8:85a3:0:0:8A2E:0370:7334 也是一个有效的 IPv6 address地址 (即，忽略 0 开头，忽略大小写)。然而，我们不能因为某个组的值为 0，而使用一个空的组，以至于出现 ( :: ) 的情况。比如， 2001:0db8:85a3::8A2E:0370:7334 是无效的 IPv6 地址。同时，在 IPv6 地址中，多余的 0 也是不被允许的。比如， 02001:0db8:85a3:0000:0000:8a2e:0370:7334 是无效的。说明: 你可以认为给定的字符串里没有空格或者其他特殊字符。示例 1 : 输入

can't add multicast group

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问题 Trying to add multicast group for ipv6, but it returns error. don't understand the problem. with ipv4 it works fine (test_client@127.0.0.1)1> {ok, S} = gen_udp:open(3333, [binary, {active, false}, {ip, {65342,0,0,0,0,0,34048,9029}}, inet6, {multicast_loop, false}]). {ok,#Port<0.1587>} (test_client@127.0.0.1)4> inet:setopts(S, [{add_membership, {{65342,0,0,0,0,0,0,0}, {0,0,0,0,0,0,0,0}}}]). {error,einval} unfortunately this topic in erlang docs is badly documented also have tried with

perl windows IPv6

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问题 I have a Perl/Windows app that uses TCP/IP sockets and I need to add IPv6 support. I have a Windows 7 64-bit machine that is running IPv6 with a Hurricane Electric tunnel and it scores 10 out 10 on http://test-ipv6.com/ and will access IPv6-only sites such as http://loopsofzen.co.uk/. It has ActivePerl 5.14.2 (I also tried Strawberry Perl 5.16.0.1). Here's a simple test script: use Socket qw( getaddrinfo ); $host = 'loopsofzen.co.uk'; $port = 80; $hints = (socktype => SOCK_STREAM, family ->

ROS+gre over ipv6，在ipv6的基础上建立GRE隧道

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感谢群众大神 @镜花水月全程技术支持。感谢！环境： 1、阿里云华北5，申请ipv6测试，申请ECS带ipv6公网ip 2、为了便于测试便捷，在vultr创建2.5美元的vps，带ipv6 对了，测试结果是IPV6很稳定，但是延迟很高，可能我没找到正确的IPV6服务器吧。 vultr真心卡。日本都这么卡。延迟200多。对了，阿里云和vultr之间的ROS IPV6隧道，只支持IPIP,GRE隧道，EOIP测试不通，原因不详。步骤： 1、到阿里云平台华北5，申请ipv6测试，大概需要15天之内会开通； 2、创建ipv6的vpc 3、新建实例时只分配私网 IPv4 地址，不分配 IPv6 地址。如需使用 IPv6 地址，您需为实例分配 IPv6 地址。 4、创建实例时配置的 IPv6 地址默认是 VPC 内网通信。如果您想通过 IPv6 地址访问公网或被公网访问，需要开通 IPv6 公网带宽。（请注意，每创建一台vpc，需要开通一次公网带宽） 5、您可以为实例自动配置 IPv6 地址和手动配置 IPv6 地址，推荐您使用更高效的自动配置工具配置 IPv6 地址。我这边是centos7 x64，进入系统 wget http://ecs-image-utils.oss-cn-hangzhou.aliyuncs.com/ipv6/rhel/ecs-utils-ipv6?spm

国内镜像地址

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【推荐】2019 Java 开发者跳槽指南.pdf(吐血整理) >>> 1.企业贡献：搜狐开源镜像站： http://mirrors.sohu.com/ 网易开源镜像站： http://mirrors.163.com/ 2.大学教学： <1>镜像较多内容: 西安电子科技大学： ftp://linux.xidian.edu.cn 哈尔滨工业大学： http://run.hit.edu.cn/ 大连理工大学： http://mirror.dlut.edu.cn/ 北京理工大学： http://mirror.bit.edu.cn (IPv4 only) http://mirror.bit6.edu.cn (IPv6 only) 北京交通大学： http://mirror.bjtu.edu.cn (IPv4 only) http://mirror6.bjtu.edu.cn (IPv6 only) http://debian.bjtu.edu.cn (IPv4+IPv6) 兰州大学： http://mirror.lzu.edu.cn/ 厦门大学： http://mirrors.xmu.edu.cn/ 上海交通大学： http://ftp.sjtu.edu.cn/ (IPv4 only) http://ftp6.sjtu.edu.cn (IPv6 only) 清华大学： http:/

Regex IPv6 validation and optional square brackets?

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问题 Hi all regex newbie here., I am trying to write a regex that validates IPv6 addresses. I haven't added the port part yet, I want to get the address portion working first. This is what I have so far: \\[?(?:[:0-9A-Fa-f]+)\\]? This makes the opening and closing brackets optional. But as you can see they are independently optional. Is there a way with regexes to require either both opening and closing brackets , or neither ? 回答1: Regex is a great tool for string pattern matching, but you've hit

Regular expression to validate InetSocketAddresses (ipv4/v6 + port addresses)

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问题 I am looking for tested regular expressions for both ipv4 and ipv6 InetSocketAddress (i.e., ip address + port number). I am not interested in validating hostnames. It can be two regex (one for ipv4, one for ipv6) or one combined regex. Does anyone have any to share? EDIT For ip4 format information see here, for ipv6 format information see here. Then, port number is added with ':'. EDIT 2 To create a string representation, I will proceed like this: byte[] tmp = { 10, 1, 0, 0 };

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