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Diffstat (limited to 'posix/gai.conf')
| -rw-r--r-- | posix/gai.conf | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/posix/gai.conf b/posix/gai.conf new file mode 100644 index 0000000000..0e334ac2c5 --- /dev/null +++ b/posix/gai.conf @@ -0,0 +1,52 @@ +# 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 +# +# 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. +# +# precedence <mask> <value> +# Add another rule the to 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 |