[ 原始碼： ipv6pref ]
套件：ipv6pref（1.0.3-1 以及其他的）
utility to set IPv6 address preferences
ipv6pref provides a utility that preloads a library and allows users to control the use of IPv6 privacy extensions.
For longrunning tasks it may be undesirable to use the periodically changing and random addresses; using the supplied utility, the kernel can be instructed whether to prefer the temporary addresses or stick to the static ones when opening sockets for a specific program.