root@OpenWrt:/# ipkg update
Downloading http://ubuntu/~ubuntu/x86-2.6_test/packages/Packages
wget: socket: Address family not supported by protocol
An error ocurred, return value: 1.
Collected errors:
ipkg_download: ERROR: Command failed with return value 1: `wget --passive-ftp    -q -P /tmp/ipkg-nU7BWS http://ubuntu/~ubuntu/x86-2.6_test/packages/Packages'
root@OpenWrt:/#