diff --git a/Netdisco/Changes b/Netdisco/Changes
index c0a24bea..f8a28efd 100644
--- a/Netdisco/Changes
+++ b/Netdisco/Changes
@@ -5,6 +5,7 @@
   * [#108] Port Bounce port control feature (down and up in succession)
   * Support for stuffing other locations into @INC at runtime
   * New netdisco-do command "show" for diagnostic reporting
+  * Additional debug levels for netdisco-do to show DBIx::Class and net-snmp
 
   [ENHANCEMENTS]
 
diff --git a/Netdisco/bin/netdisco-do b/Netdisco/bin/netdisco-do
index ccfc340d..f4ead86d 100755
--- a/Netdisco/bin/netdisco-do
+++ b/Netdisco/bin/netdisco-do
@@ -45,12 +45,12 @@ use Pod::Usage;
 use Getopt::Long;
 Getopt::Long::Configure ("bundling");
 
-my ($device, $port, $extra, $debug);
+my ($device, $port, $extra, $debug) = (undef, undef, undef, 0);
 my $result = GetOptions(
   'device|d=s' => \$device,
   'port|p=s'   => \$port,
   'extra|e=s'  => \$extra,
-  'debug|D'    => \$debug,
+  'debug|D+'   => \$debug,
 ) or pod2usage(
   -msg => 'error: bad options',
   -verbose => 0,
@@ -61,6 +61,13 @@ my $CONFIG = config();
 $CONFIG->{logger} = 'console';
 $CONFIG->{log} = ($debug ? 'debug' : 'info');
 
+$ENV{INFO_TRACE} = 1 if $debug > 1;
+$ENV{DBIC_TRACE} = 1 if $debug > 2; $ENV{DBIC_TRACE_PROFILE} = 'console';
+$ENV{SNMP_TRACE} = 1 if $debug > 3;
+$ENV{INFO_TRACE} = 2 if $debug > 4;
+$ENV{SNMP_TRACE} = 2 if $debug > 5;
+$ENV{SNMP_TRACE} = 3 if $debug > 6;
+
 # reconfigure logging to force console output
 Dancer::Logger->init('console', $CONFIG);
 
@@ -167,7 +174,7 @@ netdisco-do - Run any Netdisco job from the command-line.
  ~/bin/netdisco-do <action> [-D] [-d <device> [-p <port>] [-e <extra>]]
 
 Regardless of Netdisco configuration, debug level logging is enabled if the
-C<-D> flag is given.
+C<-D> flag is given (up to seven times).
 
 =head1 DESCRIPTION
 
@@ -239,4 +246,41 @@ C<-p> parameter (port), and C<-e> parameter (VLAN number).
 Set the PoE on/off status on a device port. Requires the C<-d> parameter
 (device), C<-p> parameter (port), and C<-e> parameter ("true" or "false").
 
+=head1 DEBUG LEVELS
+
+The debug flag "C<-D>" can be specified up to seven times, and enables the
+following items in order:
+
+=over 4
+
+=item 1
+
+Netdisco debug log level
+
+=item 2
+
+L<SNMP::Info> logging
+
+=item 3
+
+L<DBIx::Class> logging
+
+=item 4
+
+L<SNMP> (net-snmp) logging
+
+=item 5
+
+Even more L<SNMP::Info> logging
+
+=item 6
+
+Even more L<SNMP> (net-snmp) logging
+
+=item 7
+
+Even more than more L<SNMP> (net-snmp) logging
+
+=back
+
 =cut
diff --git a/Netdisco/lib/App/Netdisco/Util/SNMP.pm b/Netdisco/lib/App/Netdisco/Util/SNMP.pm
index 63458a4b..f304f0e6 100644
--- a/Netdisco/lib/App/Netdisco/Util/SNMP.pm
+++ b/Netdisco/lib/App/Netdisco/Util/SNMP.pm
@@ -57,7 +57,7 @@ Returns C<undef> if the connection fails.
 sub snmp_connect_rw { _snmp_connect_generic('write', @_) }
 
 sub _snmp_connect_generic {
-  my ($mode, $ip, $class) = @_;
+  my ($mode, $ip, $useclass) = @_;
   $mode ||= 'read';
 
   # get device details from db
@@ -102,12 +102,9 @@ sub _snmp_connect_generic {
     : (reverse (1 .. (setting('snmpver') || 3))) );
 
   # use existing or new device class
-  my @classes = ($class || 'SNMP::Info');
-  unless ($class) {
-      $snmp_args{AutoSpecify} = 1;
-      if ($device->snmp_class) {
-          unshift @classes, $device->snmp_class;
-      }
+  my @classes = ($useclass || 'SNMP::Info');
+  if ($device->snmp_class and not $useclass) {
+      unshift @classes, $device->snmp_class;
   }
 
   my $info = undef;
@@ -124,7 +121,8 @@ sub _snmp_connect_generic {
               next unless $class;
 
               my %local_args = (%snmp_args, Version => $ver);
-              $info = _try_connect($device, $class, $comm, $mode, \%local_args);
+              $info = _try_connect($device, $class, $comm, $mode, \%local_args,
+                ($useclass ? 0 : 1) );
               last COMMUNITY if $info;
           }
       }
@@ -134,7 +132,7 @@ sub _snmp_connect_generic {
 }
 
 sub _try_connect {
-  my ($device, $class, $comm, $mode, $snmp_args) = @_;
+  my ($device, $class, $comm, $mode, $snmp_args, $reclass) = @_;
   my %comm_args = _mk_info_commargs($comm);
   my $debug_comm = ( $comm->{community}
       ? $ENV{SHOW_COMMUNITY} ? $comm->{community} : '<hidden>'
@@ -152,7 +150,7 @@ sub _try_connect {
                                : _try_write($info, $device, $comm));
 
       # first time a device is discovered, re-instantiate into specific class
-      if ($snmp_args->{AutoSpecify} and $info and $info->device_type ne $class) {
+      if ($reclass and $info and $info->device_type ne $class) {
           $class = $info->device_type;
           debug
             sprintf '[%s] try_connect with ver: %s, new class: %s, comm: %s',