ipv6

A new app store policy by Apple has taken effect on June 1 so that all apps submitted to the App Store must support IPv6-only networking ( https://developer.apple.com/news/?id=05042016a ). How is it possible to host an app on Google Cloud Platform that only supports IPv4 ( https://cloud.google.com/compute/docs/networking ) and still passes Apple's review process? The server side of the app doesn't need to be reachable over IPv6 yet. Most IPv6-only networks have a DNS64/NAT64 service to reach IPv4-only servers from IPv6-only clients. Take a look at RFC 6052 , RFC 6146 and RFC 6147 if you want

Sander Steffann mentioned in a previous question of mine : Addresses like 0000:0000:0000:0000:0000:0000:192.168.0.1 are written as 0000:0000:0000:0000:0000:0000:c0a8:0001 which is exactly the same address but in hex notation. How do I detect in PHP if an address was written like eg.: ::0000:192.168.0.1 or 0000::0000:192.168.0.1 or 0000:0000:0000:0000:0000:0000:192.168.0.1 etc.? Is it enough to check if an IP-based string has '.' AND ':' ? And how do I change this to the full string 0000:0000:0000:0000:0000:0000:c0a8:0001 ? Am I correct, to change this to IPv4 will be something like: <?php

1、nmtui 2、修改网卡配置文件 1 [root@localhost ~]# cat /etc/sysconfig/network-scripts/ifcfg-ens192 2 TYPE=Ethernet 3 PROXY_METHOD=none 4 BROWSER_ONLY=no 5 BOOTPROTO=static #none/static/dhcp，网卡获取IP的方式，none/static：手动配置IP，dhcp：动态配置IP 6 DEFROUTE=yes 7 IPV4_FAILURE_FATAL=no 8 IPV6INIT=yes 9 IPV6_AUTOCONF=yes 10 IPV6_DEFROUTE=yes 11 IPV6_FAILURE_FATAL=no 12 IPV6_ADDR_GEN_MODE=stable-privacy 13 NAME=ens192 14 UUID=a5d3f7c6-fc2f-4b3c-8675-58d358c73b58 15 DEVICE=ens192 16 ONBOOT=yes #网卡的启动状态，yes：开机启动状态，no：开机禁用状态 17 IPADDR=192.168.5.100 #配置IP地址 18 PREFIX=24 #子网掩码 19 GATEWAY=192.168.5.1 #配置网关 20 IPV6_PRIVACY=no 21

What library can I use to check if an IP address is in a given subnet? I could find libraries like the Apache Commons SubnetUtils ( SubnetUtils.SubnetInfo.isInRange ) but many do not support IPv6 yet. edazdarevic's CIDRUtils supports both IPv4 and IPv6. The example does not mention boolean isInRange(String ipAddress), but it is implemented! Another option is java-ipv6 , but it does not support IPv4 and requires JDK7 . Use spring-security-web 's IpAddressMatcher . Unlike Apache Commons Net, it supports both ipv4 and ipv6. import org.springframework.security.web.util.matcher.IpAddressMatcher; ..

If you have a IPv6 enabled host that has more than one global-scope address, how can you programmatically identify the preferred address for bind() ? Example address list: eth0 Link encap:Ethernet HWaddr 00:14:5e:bd:6d:da inet addr:10.6.28.31 Bcast:10.6.28.255 Mask:255.255.255.0 inet6 addr: 2002:dce8:d28e:0:214:5eff:febd:6dda/64 Scope:Global inet6 addr: fe80::214:5eff:febd:6dda/64 Scope:Link inet6 addr: 2002:dce8:d28e::31/64 Scope:Global UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 On Solaris you can indicate a preferred address with an interface flag and it is available programmatically

转自： https://www.jianshu.com/p/9926b99a7fef 以前cocos2d-x的项目里都使用的是libwebsocket，如果想支持ipv6，只需要升级相应的库即可，现在有个项目里使用的是原生socket，如果要支持ipv6可能需要进行一些代码的改造，具体可参考如下代码： struct addrinfo *result; struct addrinfo *res; struct addrinfo addrCriteria; memset(&addrCriteria,0,sizeof(addrCriteria)); addrCriteria.ai_family=AF_UNSPEC; addrCriteria.ai_socktype=SOCK_STREAM; addrCriteria.ai_protocol=IPPROTO_TCP; //判定网络类型 指定特定接口信息 int error = getaddrinfo("www.baidu.com", "1100", &addrCriteria, &result); if (error == 0) { struct sockaddr_in *sa; for (res = result; res != NULL; res = res->ai_next) { if (AF_INET6 == res->ai

Any have any good code for converting a IPv6 address string into an integer? Converting IPv4 seems to be fairly easy, with the one format. However, IPv6 has several different formats to show an address: XXXX:XXXX:XXXX:XXXX:: XXXX:XXXX:XXXX:XXXX:XXXX:XXXX:XXXX:XXXX XXXX:XXX:XXXX:0:0:XXXX:XXX:XXXX XXXX:XXX:XXXX::XXXX:XXX:XXXX ::ffff:XXXX:XXX (IPv4 in v6 format) ::ffff:###.#.#.### (also valid IPv4 in v6 format) I'd like to be able to take one of these strings and translate it into an INTEGER for IP-to-network matching, and allow for any of these formats as the input. Ended up rolling my own. Also