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Date: Fri, 17 Jul 2015 14:10:08 -0700 (PDT)
From: jasonmader@gmail.com
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Subject: IPv6 bind() errno 49 in jail
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In FreeBSD 10.1 I=CA=BCve encountered an error trying to use IPv6 in a jail=
.=20
When nginx starts with,

listen [2620:10e:6024:f004::141]:443 ssl;

and jail.conf is configured,

 ip6.addr =3D 2620:10e:6024:f004::141;

It=E2=80=99s the following error,

[emerg] 2124#0: bind() to [2620:10e:6024:f004::141]:443 failed (49: Can't=
=20
assign requested address)

Output from truss shows,

socket(PF_INET6,SOCK_STREAM,0) =3D 8 (0x8)
setsockopt(0x8,0xffff,0x4,0x7fffffffe854,0x4,0x0) =3D 0 (0x0)
setsockopt(0x8,0x29,0x1b,0x7fffffffe848,0x4,0x0) =3D 0 (0x0)
ioctl(8,FIONBIO,0xffffe7fc) =3D 0 (0x0)
bind(8,{ AF_INET6 [40be:bd00:800:0:9fe8:ffff:100:0]:36096 },28) ERR#49=20
'Can't assign requested address'
write(3,"2015/07/17 16:49:24 [emerg] 4760"...,121) =3D 121 (0x79)
nginx: [emerg] bind() to [2620:10e:6024:f004::141]:443 failed (49: Can't=20
assign requested address)

So it=E2=80=99s pretty straight forward that bind() will fail. But where is=
 the=20
address [40be:bd00:800:0:9fe8:ffff:100:0]:36096 coming from?