= phenomenon = Red Hat's internal network used by Dave Airlie (at least) in Australia uses subnet 66.187.239.0/24. MaxMind GeoIP's database has this address as being in Raleigh, NC. Therefore, MirrorManager tries sending users behind that NAT to US-based mirrors instead of Australia-based mirrors.
= recommendation = Add an entry to the MirrorManager NetblockCountry table, which overrides GeoIP's idea, for this netblock.
Matt Galgoci confirmed this subnet is for Australia, and will also send a list of other country-specific subnets which should similarly be added to the NetblockCountry table.
Entry for 66.187.239.0/24 added, change should be reflected in MM at the next update.
{{{ $ wget -q -O - 'http://mirrors.fedoraproject.org/mirrorlist?repo=fedora-19&arch=x86_64&ip=66.187.239.10'
http://download.bne.redhat.com/pub/fedora/linux/development/19/x86_64/os/ http://mirror.optus.net/fedora/linux/development/19/x86_64/os/ http://mirror.as24220.net/pub/fedora/linux/development/19/x86_64/os/ http://fedora.mirror.uber.com.au/fedora/linux/development/19/x86_64/os/ }}}
Closing as working as expected now.