From owner-freebsd-net@FreeBSD.ORG  Wed Dec  1 21:32:32 2010
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Date: Wed, 1 Dec 2010 21:32:17 +0000
From: Bruce Cran <bruce@cran.org.uk>
To: freebsd-net@freebsd.org
Message-ID: <20101201213217.19712470@core.draftnet>
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Subject: EHOSTUNREACH returned for refused IPv6 connection
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It appears that the network stack on -CURRENT is returning EHOSTUNREACH
instead of ECONNREFUSED when trying to connect to a closed port over
IPv6. e.g.:

> telnet www.kame.net 10000
Trying 203.178.141.194...
telnet: connect to address 203.178.141.194: Connection refused
Trying 2001:200:dff:fff1:216:3eff:feb1:44d7...
telnet: connect to address 2001:200:dff:fff1:216:3eff:feb1:44d7: No
route to host 
telnet: Unable to connect to remote host

Though it works locally:

> telnet localhost 10000
Trying 127.0.0.1...
telnet: connect to address 127.0.0.1: Connection refused
Trying ::1...
telnet: connect to address ::1: Connection refused
telnet: Unable to connect to remote host

-- 
Bruce Cran