From ed0874085976531bda8a05540b0816e8bf711b71 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Sat, 3 Apr 2010 17:56:51 -0700 Subject: [PATCH] Document problem with NATs in getaddrinfo. --- ChangeLog | 4 ++++ posix/gai.conf | 9 +++++++++ 2 files changed, 13 insertions(+) diff --git a/ChangeLog b/ChangeLog index 27678bf..dd6b608 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,9 @@ 2010-04-03 Ulrich Drepper + [BZ #11438] + * posix/gai.conf: Document problems with IPv4 site-local addresses and + NATs. + [BZ #11449] * crypt/crypt_util.c (__init_des_r): Add memory barrier before setting small_tables_initialized. diff --git a/posix/gai.conf b/posix/gai.conf index 3dba1a9..195287e 100644 --- a/posix/gai.conf +++ b/posix/gai.conf @@ -66,3 +66,12 @@ #scopev4 ::ffff:172.16.0.0/108 5 #scopev4 ::ffff:192.168.0.0/112 5 #scopev4 ::ffff:0.0.0.0/96 14 +# +# For sites which use site-local IPv4 addresses behind NAT there is +# the problem that even if IPv4 addresses are preferred they do not +# have the same scope and are therefore not sorted first. To change +# this use only these rules: +# +#scopev4 ::ffff:169.254.0.0/112 2 +#scopev4 ::ffff:127.0.0.0/104 2 +#scopev4 ::ffff:0.0.0.0/96 14 -- 2.7.4