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net: Listen("tcp", "0.0.0.0:11111") listens on [::]:11111 #7411
http://play.golang.org/p/yjqyCAEMyR What is the expected output? I expect all examples to listen on an IPv4 address. On the playground this is the case. What do you see instead? net.Listen("tcp", "0.0.0.0:11111") listens on [::]:11111 on my system. The full output is: 2014/02/25 19:59:14 0.0.0.0:11111 2014/02/25 19:59:14 [::]:11112 2014/02/25 19:59:14 127.0.0.1:11113 2014/02/25 19:59:14 127.0.0.1:11114 Which operating system are you using? Ubuntu 12.04, 3.8.0-36-generic Which version are you using? (run 'go version' or 'gccgo --version') go version go1.2 linux/amd64 The only reason the examples use different ports is because the playground doesn't Close() quickly enough for the program to succeed (it works when I Close() locally). From testing, I don't think port number makes a difference to the behaviour. Admittedly the workaround is trivial, but I thought this worth reporting anyway.
Thanks for the report but that's intentional. In the net package, a dumb and small bump-in-api feature translates so, because we thought that it's ridiculous we must use IPv6 textual address representation when we want to run tcp over dual IP stack on the passive-open side. For now any of the following enables "tcp over dual IP stack on the passive-open side" if possible. tcp + ":port" tcp + "0.0.0.0:port" tcp + "[::]:port"
Status changed to WorkingAsIntended.
This issue was closed.