Telnet connection with echo service succeeds for
127.0.0.1 host names, but fails with
::1 host name:
[email protected]:~$ telnet localhost 7 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. 123 123 ^] telnet> q Connection closed. [email protected]:~$ telnet ::1 7 Trying ::1... telnet: Unable to connect to remote host: Connection refused [email protected]:~$
My own program trying to talk using IPv6 address fails as well. Why IPv6 address is rejected?
OS: Ubuntu 12.04 32 bit.
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