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Date: Fri, 23 Jan 2015 19:31:45 +0100
From: Mathieu Arnold <mat@FreeBSD.org>
To: parv <parv@pair.com>
Subject: Re: perl 5.21.7 - test fail of cpan/IO-Socket-IP/t/01local-client-v4.t
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+--On 23 janvier 2015 06:41:29 -1000 parv <parv@pair.com> wrote:
|> |   # ifconfig lo0
|> |   lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
|> |     options=3<RXCSUM,TXCSUM>
|> |     inet6 fe80::1%lo0 prefixlen 64 scopeid 0xd
|> |     inet6 ::1 prefixlen 128
|> |     inet 127.0.0.1 netmask 0xff000000
|> |     inet 127.0.0.2 netmask 0xffffff00
|> |     inet 127.0.0.3 netmask 0xffffff00
|> |     inet 127.0.0.4 netmask 0xffffff00
|> |     nd6 options=3<PERFORMNUD,ACCEPT_RTADV>
|> 
|> As a side note, your netmask is wrong, which may be why the test
|> fails, 127/8 is the network, not 127/24.
| 
| ... which apparently was the case! After setting the netmask to /8,
| tests PASSED (for perl 5.20 & 5.21.8). Thank you.
| 
| 
| Now, I would try to understand the code that acquires the socket
| address to find out why the address was 0x7f000002 earlier.

Because selection of the outgoing address is done using the most specific
that can reach the other end.

-- 
Mathieu Arnold