# Configuration for getaddrinfo(3).

#

# So far only configuration for the destination address sorting is needed.

# RFC 3484 governs the sorting.  But the RFC also says that system

# administrators should be able to overwrite the defaults.  This can be

# achieved here.

#

# All lines have an initial identifier specifying the option followed by

# up to two values.  Information specified in this file replaces the

# default information.  Complete absence of data of one kind causes the

# appropriate default information to be used.  The supported commands include:

#

# reload  <yes|no>

#    If set to yes, each getaddrinfo(3) call will check whether this file

#    changed and if necessary reload.  This option should not really be

#    used.  There are possible runtime problems.  The default is no.

#

# label   <mask>   <value>

#    Add another rule to the RFC 3484 label table.  See section 2.1 in

#    RFC 3484.  The default is:

#

#label ::1/128       0

#label ::/0          1

#label 2002::/16     2

#label ::/96         3

#label ::ffff:0:0/96 4

#label fec0::/10     5

#label fc00::/7      6

#label 2001:0::/32   7

#

#    This default differs from the tables given in RFC 3484 by handling

#    (now obsolete) site-local IPv6 addresses and Unique Local Addresses.

#    The reason for this difference is that these addresses are never

#    NATed while IPv4 site-local addresses most probably are.  Given

#    the precedence of IPv6 over IPv4 (see below) on machines having only

#    site-local IPv4 and IPv6 addresses a lookup for a global address would

#    see the IPv6 be preferred.  The result is a long delay because the

#    site-local IPv6 addresses cannot be used while the IPv4 address is

#    (at least for the foreseeable future) NATed.  We also treat Teredo

#    tunnels special.

#

# precedence  <mask>   <value>

#    Add another rule to the RFC 3484 precedence table.  See section 2.1

#    and 10.3 in RFC 3484.  The default is:

#

#precedence  ::1/128       50

#precedence  ::/0          40

#precedence  2002::/16     30

#precedence ::/96          20

#precedence ::ffff:0:0/96  10

#

#    For sites which prefer IPv4 connections change the last line to

#

#precedence ::ffff:0:0/96  100

#

# scopev4  <mask>  <value>

#    Add another rule to the RFC 6724 scope table for IPv4 addresses.

#    By default the scope IDs described in section 3.2 in RFC 6724 are

#    used.  Changing these defaults should hardly ever be necessary.

#    The defaults are equivalent to:

#

#scopev4 ::ffff:169.254.0.0/112  2

#scopev4 ::ffff:127.0.0.0/104    2

#scopev4 ::ffff:0.0.0.0/96       14