diff options
| author | Ulrich Drepper <drepper@redhat.com> | 2006-05-18 16:58:36 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2006-05-18 16:58:36 +0000 |
| commit | 6e2a7825284e41f2336b0cb5a98609ff486e85fa (patch) | |
| tree | 8084e65d95ff9acac81496574d841ae8c5d5011c /posix | |
| parent | 758b9d7efe599e3de3472593b6f8f03cfc29ea92 (diff) | |
| download | glibc-6e2a7825284e41f2336b0cb5a98609ff486e85fa.tar.gz | |
* sysdeps/posix/getaddrinfo.c: Add unique labels to the default
RFC3484 precedence table for fec0::/10 and fc00::/7 (site-local
and ULA respectively). Set precedence for IPv4 address to 10 as
defined in RFC3484 for preferring IPv6.
* posix/gai.conf: Update to match the new default tables.
Diffstat (limited to 'posix')
| -rw-r--r-- | posix/gai.conf | 26 |
1 files changed, 19 insertions, 7 deletions
diff --git a/posix/gai.conf b/posix/gai.conf index 5f063f5c3c..0e334ac2c5 100644 --- a/posix/gai.conf +++ b/posix/gai.conf @@ -24,17 +24,29 @@ #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 precendence table. See section 2.1 +# Add another rule the to RFC 3484 precedence table. See section 2.1 # and 10.3 in RFC 3484. The default is: # -#precendence ::1/128 50 -#precendence ::/0 40 -#precendence 2002::/16 30 -#precendence ::/96 20 -#precendence ::ffff:0:0/96 10 +#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 # -#precendence ::ffff:0:0/96 100 +#precedence ::ffff:0:0/96 100 |