Man pages matching name net::libdnet6 in section 3pm:

Net::Libdnet6.3pm.en	debian 10 / libnet-libdnet6-perl
Net::Libdnet6.3pm.en	debian 11 / libnet-libdnet6-perl
Net::Libdnet6.3pm.en	debian 12 / libnet-libdnet6-perl