Try enabling these services on the server: Peer Name Resolution Server (Install through Server Management) Peer Discovery Server (Install through Server Management) Simple Service Discovery Protocol Service (SSDP Service) Then simply ensure that the Firewall Rules are modified; by default they block IPv4 / IPv6 Teredo Tunneling driver. IPv6 needs to be supported as it … Read more
The best approach is to create an IPv6 server socket that can also accept IPv4 connections. To do so, create a regular IPv6 socket, turn off the socket option IPV6_V6ONLY, bind it to the “any” address, and start receiving. IPv4 addresses will be presented as IPv6 addresses, in the IPv4-mapped format. The major difference across … Read more
I was unable to get @Factor Mystic’s answer to work with POSIX regular expressions, so I wrote one that works with POSIX regular expressions and PERL regular expressions. It should match: IPv6 addresses zero compressed IPv6 addresses (section 2.2 of rfc5952) link-local IPv6 addresses with zone index (section 11 of rfc4007) IPv4-Embedded IPv6 Address (section … Read more
What if I encounter an unrecognized extension header type? From RFC 2460: If, as a result of processing a header, a node is required to proceed to the next header but the Next Header value in the current header is unrecognized by the node, it should discard the packet and send an ICMP Parameter Problem … Read more
As @daniel-t points out in the comment: github.com/docker/docker/issues/2174 is about showing binding only to IPv6 in netstat, but that is not an issue. As that github issues states: When setting up the proxy, Docker requests the loopback address ‘127.0.0.1’, Linux realises this is an address that exists in IPv6 (as ::0) and opens on both … Read more
The following code finds all IPv4 and IPv6 addresses on an iOS or OSX device. The first getIPAddress method acts more or less as the older code in this answer: you can prefer either one or the other type address, and it always prefers WIFI over cellular (obviously you could change this). More interestingly it … Read more
http://en.wikipedia.org/wiki/Hexspeak http://www.urbandictionary.com/define.php?term=dead%3Abeef “Dead beef” is a very popular sentence in programming, because it is built only from letters a-f, which are used in hexadecimal notation. Colons in the beginning and in the middle of the sentence make this sentence a (theoretically) valid IPv6 address.
As we all know that IPv4 address for localhost is 127.0.0.1 (loopback address). Actually, any IPv4 address in 127.0.0.0/8 is a loopback address. In IPv6, the direct analog of the loopback range is ::1/128. So ::1 (long form 0:0:0:0:0:0:0:1) is the one and only IPv6 loopback address. While the hostname localhost will normally resolve to … Read more
They work almost the same as today. However, be sure you include [] around your IP. For example : http://[1fff:0:a88:85a3::ac1f]:8001/index.html Wikipedia has a pretty good article about IPv6: http://en.wikipedia.org/wiki/IPv6#Addressing
Okay, thanks to the people who pointed out the capabilities system and CAP_NET_BIND_SERVICE capability. If you have a recent kernel, it is indeed possible to use this to start a service as non-root but bind low ports. The short answer is that you do: setcap ‘cap_net_bind_service=+ep’ /path/to/program And then anytime program is executed thereafter it … Read more