Man pages matching name io::socket::inet6 in section 3pm:

IO::Socket::INET6.3pm.en	debian 10 / libio-socket-inet6-perl
IO::Socket::INET6.3pm.en	debian 11 / libio-socket-inet6-perl
IO::Socket::INET6.3pm.en	debian 12 / libio-socket-inet6-perl