Package: mirrors http://httpredir.debian.org/debian/dists/stable/main/binary-amd64/Packages.gz redirects for all httpredir.debian.org addresses
http://httpredir.debian.org/debian-security/dists/stable/updates/main/binary-amd64/Packages.gz fails with 503 Service Unavailable when serviced by 128.31.0.66, 2001:41c8:1000:21::21:35 and 2a01:4f8:151:555d::42 (which in particular means it always fails over IPv6). -- Michał Politowski
