my $interfaces = Net::SNMP::Interfaces->new( Hostname => '192.168.184.11', Community => 'public', Port => '1161', #RaiseError => 1, )or die $Net::SNMP::Interfaces::error; my @ifnames = $interfaces->all_interfaces(); print Dumper (\@ifnames); #### No response from remote host "127.0.0.1" at test.pl line 10 #### my $interfaces = Net::SNMP::Interfaces->new( Hostname => '127.0.0.1', Community => 'public', Port => '1161', RaiseError => 1, ); my @ifnames = $interfaces->all_interfaces(); #### Net::SNMP::Interfaces: at test.pl line 10. #### 22:19:01.537280 IP 0.0.0.0 > 0.0.0.0: ICMP 0.0.0.0 udp port 1161 unreachable, length 36 #### my $interfaces = Net::SNMP::Interfaces->new( Hostname => '192.168.184.11', Community => 'public', Port => '1161', ); my @ifnames = $interfaces->all_interfaces(); print Dumper (\@ifnames); #### Can't call method "all_interfaces" on an undefined value at test.pl line 12.