ipv6

I am experimenting with IPv6 sockets, particularly the "dual stack" capability offered on Windows Vista and later, and apparently on Unix by default. I am finding that when I bind my server to a specific IP address, or to the hostname resolution of my local machine, I cannot accept a connection from an IPv4 client. When I bind to INADDR_ANY however, I can. Please consider the following code for my server. You can see that I follow Microsoft's advice of creating an IPv6 socket, then setting the IPV6_V6ONLY flag to zero: addrinfo* result, *pCurrent, hints; memset(&hints, 0, sizeof hints); //

I'm trying to port a MacOSX app to windows and I've come up against a problem around getifaddrs. Basically windows does not support it. I'm trying to figure a way to re-implement it (for AF_INET and AF_INET6) but the "equivalent" functionality on windows appears to be nothing like the MacOSX support. Has someone done this sort of conversion before? If so is there a nice way I can get windows to report me interface info like MacOSX does? The closest functions on Windows are GetAdaptersInfo and GetAdaptersAddresses . The MSDN documentation is pretty comprehensive, so you should find everything

Are there any existing libraries to parse a string as an ipv4 or ipv6 address, or at least identify whether a string is an IP address (of either sort)? Yes, there is ipaddr module, that can you help to check if a string is a IPv4/IPv6 address, and to detect its version. import ipaddr import sys try: ip = ipaddr.IPAddress(sys.argv[1]) print '%s is a correct IP%s address.' % (ip, ip.version) except ValueError: print 'address/netmask is invalid: %s' % sys.argv[1] except: print 'Usage : %s ip' % sys.argv[0] But this is not a standard module, so it is not always possible to use it. You also try

I've a problem with IPV6 . Apple reject my app with error: We discovered one or more bugs in your app when reviewed on iPad and iPhone running iOS 10.0.2 on Wi-Fi connected to an IPv6 network. Specifically, your app stayed static at the launch screen and there was no further content loaded. We've attached screenshot(s) for your reference. But my sever is not supporting IPV6 . I use library AFNetworking to connect server. Please help me some solution? Thank you for any support! Anıl Sözeri I got this error a month ago, then I updated AFNetworking to last version and Apple's Reachability class

The problem is that urllib using httplib is querying for AAAA records. I would like to avoid that. Is there a nice way to do that? >>> import socket >>> socket.gethostbyname('www.python.org') '82.94.164.162' 21:52:37.302028 IP 192.168.0.9.44992 > 192.168.0.1.53: 27463+ A? www.python.org. (32) 21:52:37.312031 IP 192.168.0.1.53 > 192.168.0.9.44992: 27463 1/0/0 A 82.94.164.162 (48) python /usr/lib/python2.6/urllib.py -t http://www.python.org >/dev/null 2>&1 21:53:44.118314 IP 192.168.0.9.40669 > 192.168.0.1.53: 32354+ A? www.python.org. (32) 21:53:44.118647 IP 192.168.0.9.40669 > 192.168.0.1.53:

IPv6是互联网协议的第六版；最初它在IETF的 IPng选取过程中胜出时称为互联网新一代网际协议(IPng)，IPv6是被正式广泛使用的第二版互联网协议。 现有标准IPv4只支持大概40亿(4×109)个网络地址，而IPv6支持3.4 ×1038个，这等价于在地球上每平方英寸有4.3×1020地址(6.7×1017地址/mm2)。(IPv5不是IPv4的继承，而是实验性的面向流的数据流协议，用来对声音，图像等提供支持。) IPv6地址表示 IPv6地址为128位长，但通常写作8组，每组为四个十六进制数的形式。例如： 2001:0db8:85a3:08d3:1319:8a2e:0370:7344 是一个合法的IPv6地址。 如果四个数字都是零，可以被省略。例如： 2001:0db8:85a3:0000:1319:8a2e:0370:7344 等价于 2001:0db8:85a3::1319:8a2e:0370:7344 遵从这些规则，如果因为省略而出现了两个以上的冒号的话，可以压缩为一个，但这种零压缩在地址中只能出现一次。因此： 2001:0DB8:0000:0000:0000:0000:1428:57ab 2001:0DB8:0000:0000:0000::1428:57ab 2001:0DB8:0:0:0:0:1428:57ab 2001:0DB8:0::0:1428:57ab

Does anyone have some code that will determine if an IP address (IPv4 or IPv6) is on the same subnet as the machine running the application? I've seen numerous examples of code that does this with IPv4 but I can't find any that support IPv6. EDIT: I'm unsure if I'm understanding all the differences between v4 and v6 so here's a bit more to my question. I have an application that serves both internet clients and intranet clients, that is to say there are clients that are on the same physical network as the server. So sometimes there are routers between the client and sometimes there aren't.