ipv4

问题 Summary: I'm trying to create sockets to pass data between two physical interfaces that exist on the same machine, and Win32 sockets always forwards the traffic directly in the kernel instead of pushing through the physical interfaces. Is there any way to disable this behavior, perhaps through device settings, registry tweaks, routing table shenanigans, or socket options? We're using Windows XP SP3. Some background. I'm attempting to build some completely automated IP tests to exercise our

问题 have apps, built 2015 and 2014. How can I test them for IPv6? If my apps doesn't support IPv6, what should I do? My apps are using AFNetworking and Alamofire. I'm connecting mostly to domains ( Ex. api.example.com/v1/...). Only 1 app use IP: (ex: 12.12.12.12:3000/api/v1/...). 回答1: This solution only works if you have an ethernet connection. For creating an iPV6 NAT64 wifi network, follow these steps Step 1 : Open system preferences Step 2 : Open Sharing Step 3 : Click on internet sharing Step

问题 I ported an application to support IPv6, using popular tutorials. I decided to use only one socket listener for both protocols. Now I realized I have to set IPV6_V6ONLY properly (it's only working on my x86 linux out of the box, but not on my ARM). Is this really the way to go? Some say IPV6_V6ONLY shouldn't be used (apparently it's outdated, because of IPv4 mapping over the wire), some say using one socket for both protocols is fine. So, I'm confused. What is the current state about this

问题 I need to lookup a given host to its corresponding IP in Node.js. There seems to be two native methods of doing this: > dns.resolve('google.com', (error, addresses) => { console.error(error); console.log(addresses); }); QueryReqWrap { bindingName: 'queryA', callback: { [Function: asyncCallback] immediately: true }, hostname: 'google.com', oncomplete: [Function: onresolve], domain: Domain { domain: null, _events: { error: [Function] }, _eventsCount: 1, _maxListeners: undefined, members: [] } }

问题 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? 回答1: The closest functions on Windows are

问题 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 >

问题 I'm searching for a php algorithm that efficiently test if one cidr notated network overlaps another. Basically I have the following situation: Array of cidr adresses: $cidrNetworks = array( '192.168.10.0/24', '10.10.0.30/20', etc. ); I have a method that adds networks to the array, but this method should throw an exception when a network is added that overlaps with a network allready in the array. So ie. if 192.168.10.0/25 is added an exception should be thrown. Does anyone have/know/"can

问题 How can I obtain the (IPv4) addresses for all network interfaces using only proc? After some extensive investigation I've discovered the following: ifconfig makes use of SIOCGIFADDR , which requires open sockets and advance knowledge of all the interface names. It also isn't documented in any manual pages on Linux. proc contains /proc/net/dev , but this is a list of interface statistics. proc contains /proc/net/if_inet6 , which is exactly what I need but for IPv6. Generally interfaces are

问题 In the properties section of my network card, on windows server 2008, i have IPV6 disabled, leaving only IPV4 enabled. However in ASP.NET, Request.UserHostAddress returns '::1', an IPV6 address. Has anyone got any idea how to revert back to IPV4? 回答1: If you're connecting to localhost (::1 / 127.0.0.1), you're not using the network card that your server has, but rather like a virtual card that windows has. I don't think there is anyway to configure the loopback card and removing IPv6 from it,

问题 I have application that uses IPv4 addresses (it stores them as long), so it only understands IPv4 addresses. Is it possible to convert IPv6 address to IPv4 with Java ? 回答1: While there are IPv6 equivalents for the IPv4 address range, you can't convert all IPv6 addresses to IPv4 - there are more IPv6 addresses than there are IPv4 addresses. The only sane way around this issue is to update your application to be able to understand and store IPv6 addresses. 回答2: The IPAddress Java library can