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- # 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
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