Man pages matching name net::dns::rr::eui64 in section 3pm:

Net::DNS::RR::EUI64.3pm.en	debian 10 / libnet-dns-perl
Net::DNS::RR::EUI64.3pm.en	debian 11 / libnet-dns-perl
Net::DNS::RR::EUI64.3pm.en	debian 12 / libnet-dns-perl