Undefined subroutine &Net::Whois::ARIN::Network::OrgName called at /home/me /perl5/perlbrew/perls/perl-5.16.2/lib/site_perl/5.16.2/Net/Whois/ARIN/Network.pm line 176. Net::Whois::ARIN::Network::AUTOLOAD('Net::Whois::ARIN::Network=HASH(0x7f fe67857180)') called at lib/ProbeS/Misc.pm line 50 ProbeS::Misc::rev_ip(96.255.24.1) called at lib/ProbeS/NetHist.pm line 83 ProbeS::NetHist::nethist('HASH(0x7ffe5bfd9fa8)', 'HASH(0x7ffe641f4e78 )', 0) called at /home/me/perl5/perlbrew/perls/perl-5.16.2/lib/site_perl/5. 16.2/Net/Whois/ARIN/Network.pm line 176. Net::Whois::ARIN::Network::AUTOLOAD('Net::Whois::ARIN::Network=HASH(0x7f fe67857180)') called at lib/ProbeS/Misc.pm line 50 ProbeS::Misc::rev_ip(96.255.24.1) called at lib/ProbeS/NetHist.pm line 83 ProbeS::NetHist::nethist('HASH(0x7ffe5bfd9fa8)', 'HASH(0x7ffe641f4e78 )', 0) called at ./probes line 285 #### #!/usr/bin/env perl use strict; use warnings; BEGIN { push @INC, './lib'; } use T; foreach my $i (qw/8.8.8.8 4.2.2.2 4.2.2.1 8.8.4.4/) { print rev_ip($i) . "\n"; } #### package T; BEGIN { require Exporter; our $VERSION = 1.1; our @ISA = 'Exporter'; our @EXPORT = qw(rev_ip); } use strict; use warnings; use Data::Dumper; use Net::DNS::Resolver; use Net::Whois::ARIN; my $dns = Net::DNS::Resolver->new; my $w = Net::Whois::ARIN->new; sub rev_ip { my ($ip) = @_; my $org = ''; my $rev = ''; $org = join ", ", map { $_->OrgName } $w->network($ip); my $packet = $dns->search($ip); $rev = join ', ', map { $_->rdatastr } grep { $_->type eq 'PTR' } $packet->answer if $packet; return "[$ip] [$org] [$rev]"; }