diff --git a/lib/App/Netdisco/DB.pm b/lib/App/Netdisco/DB.pm
index 7e864c36..abb2af1a 100644
--- a/lib/App/Netdisco/DB.pm
+++ b/lib/App/Netdisco/DB.pm
@@ -11,7 +11,7 @@ __PACKAGE__->load_namespaces(
 );
 
 our # try to hide from kwalitee
-  $VERSION = 45; # schema version used for upgrades, keep as integer
+  $VERSION = 46; # schema version used for upgrades, keep as integer
 
 use Path::Class;
 use File::ShareDir 'dist_dir';
diff --git a/lib/App/Netdisco/DB/Result/NetmapPositions.pm b/lib/App/Netdisco/DB/Result/NetmapPositions.pm
new file mode 100644
index 00000000..234407a8
--- /dev/null
+++ b/lib/App/Netdisco/DB/Result/NetmapPositions.pm
@@ -0,0 +1,23 @@
+use utf8;
+package App::Netdisco::DB::Result::NetmapPositions;
+
+use strict;
+use warnings;
+
+use base 'DBIx::Class::Core';
+__PACKAGE__->table("netmap_positions");
+__PACKAGE__->add_columns(
+  "id",
+  { data_type => "integer", is_nullable => 0, is_auto_increment => 1 },
+  "device_groups",
+  { data_type => "text[]", is_nullable => 0 },
+  "positions",
+  { data_type => "text", is_nullable => 0 },
+);
+
+__PACKAGE__->set_primary_key("id");
+
+__PACKAGE__->add_unique_constraint(
+  "netmap_positions_device_groups_key" => ['device_groups']);
+
+1;
diff --git a/lib/App/Netdisco/Web/Plugin/Device/Neighbors.pm b/lib/App/Netdisco/Web/Plugin/Device/Neighbors.pm
index 2ff1fde3..b1f8dea8 100644
--- a/lib/App/Netdisco/Web/Plugin/Device/Neighbors.pm
+++ b/lib/App/Netdisco/Web/Plugin/Device/Neighbors.pm
@@ -5,6 +5,7 @@ use Dancer::Plugin::Ajax;
 use Dancer::Plugin::DBIC;
 use Dancer::Plugin::Auth::Extensible;
 
+use List::MoreUtils ();
 use App::Netdisco::Web::Plugin;
 
 register_device_tab({ tag => 'netmap', label => 'Neighbors' });
@@ -14,10 +15,33 @@ ajax '/ajax/content/device/netmap' => require_login sub {
     template 'ajax/device/netmap.tt', {}, { layout => undef };
 };
 
-# TODO
 ajax '/ajax/data/device/netmappositions' => require_login sub {
-    my $x = from_json param('positions');
-    use DDP; p $x;
+    my $p = param('positions') or send_error('Missing positions', 400);
+    my $positions = from_json($p) or send_error('Bad positions', 400);
+    send_error('Bad positions', 400) unless ref [] eq ref $positions;
+
+    my %clean = ();
+    POSITION: foreach my $pos (@$positions) {
+      next unless ref {} eq ref $pos;
+      foreach my $k (qw/ID x y/) {
+        next POSITION unless exists $pos->{$k};
+        next POSITION unless $pos->{$k} =~ m/^[[:word:]\.-]+$/;
+      }
+      $clean{$pos->{ID}} = { x => $pos->{x}, y => $pos->{y} };
+    }
+
+    return unless scalar keys %clean;
+    my $posrow = schema('netdisco')->resultset('NetmapPositions')->find({
+      device_groups => \[ '= ?', [device_groups => [sort (List::MoreUtils::uniq( '__ANY__' )) ]] ]});
+    if ($posrow) {
+      $posrow->update({ positions => to_json(\%clean) });
+    }
+    else {
+      schema('netdisco')->resultset('NetmapPositions')->create({
+        device_groups => [sort (List::MoreUtils::uniq( '__ANY__' )) ],
+        positions => to_json(\%clean),
+      });
+    }
 };
 
 ajax '/ajax/data/device/netmap' => require_login sub {
@@ -28,6 +52,10 @@ ajax '/ajax/data/device/netmap' => require_login sub {
     my $vlan = param('vlan');
     undef $vlan if (defined $vlan and $vlan !~ m/^\d+$/);
 
+    my $posrow = schema('netdisco')->resultset('NetmapPositions')->find({
+      device_groups => \[ '= ?', [device_groups => [sort (List::MoreUtils::uniq( '__ANY__' )) ]] ]});
+    my $pos_for = from_json( $posrow ? $posrow->positions : '{}' );
+
     my @devices = schema('netdisco')->resultset('Device')->search({}, {
       result_class => 'DBIx::Class::ResultClass::HashRefInflator',
       columns => ['ip', 'dns', 'name'],
@@ -44,15 +72,26 @@ ajax '/ajax/data/device/netmap' => require_login sub {
       (my $name = ($device->{dns} || lc($device->{name}) || $device->{ip})) =~ s/$domain$//;
 
       $v3data{nodes}->{ ($device->{row_number} - 1) } = {
-        ID => $device->{row_number},
+        ID => $device->{ip},
         SIZEVALUE => 3000,
         COLORVALUE => 10,
         LABEL => $name,
       };
-      push @{$v4data{'nodes'}}, { index => ($device->{row_number} - 1) };
 
-      $v3data{'centernode'} = $device->{row_number}
+      if (exists $pos_for->{$device->{ip}}) {
+        my $node = $v3data{nodes}->{ ($device->{row_number} - 1) };
+        $node->{'fixed'} = 1;
+        $node->{'x'} = $pos_for->{$device->{ip}}->{'x'};
+        $node->{'y'} = $pos_for->{$device->{ip}}->{'y'};
+      }
+      else {
+        ++$v3data{'newnodes'};
+      }
+
+      $v3data{'centernode'} = $device->{ip}
         if $qdev and $qdev->in_storage and $device->{ip} eq $qdev->ip;
+
+      push @{$v4data{'nodes'}}, { index => ($device->{row_number} - 1) };
     }
 
     my $rs = schema('netdisco')->resultset('Virtual::DeviceLinks')->search({}, {
@@ -71,8 +110,8 @@ ajax '/ajax/data/device/netmap' => require_login sub {
 
     while (my $l = $rs->next) {
       push @{$v3data{'links'}}, {
-        FROMID => $id_for{$l->{left_ip}},
-        TOID   => $id_for{$l->{right_ip}},
+        FROMID => $l->{left_ip},
+        TOID   => $l->{right_ip},
       };
       push @{$v4data{'links'}}, {
         source => ($id_for{$l->{left_ip}} - 1),
diff --git a/share/config.yml b/share/config.yml
index d79ab2af..2b705812 100644
--- a/share/config.yml
+++ b/share/config.yml
@@ -172,6 +172,8 @@ login_logo: ""
 # mibhome is discovered from environment
 # mibdirs defaults to contents of mibhome
 host_groups:
+  __ANY__:
+    - 'any'
   __LOCAL_ADDRESSES__:
     - '::1'
     - 'fe80::/10'
diff --git a/share/schema_versions/App-Netdisco-DB-45-46-PostgreSQL.sql b/share/schema_versions/App-Netdisco-DB-45-46-PostgreSQL.sql
new file mode 100644
index 00000000..78854aec
--- /dev/null
+++ b/share/schema_versions/App-Netdisco-DB-45-46-PostgreSQL.sql
@@ -0,0 +1,9 @@
+BEGIN;
+
+CREATE TABLE "netmap_positions" (
+  "id" serial PRIMARY KEY,
+  "device_groups" text[] UNIQUE NOT NULL,
+  "positions" text NOT NULL
+);
+
+COMMIT;
diff --git a/share/views/ajax/device/netmap.tt b/share/views/ajax/device/netmap.tt
index 19a1f156..52883c97 100644
--- a/share/views/ajax/device/netmap.tt
+++ b/share/views/ajax/device/netmap.tt
@@ -40,11 +40,12 @@ $.getJSON('[% uri_for('/ajax/data/device/netmap') %]', {q: '[% params.q %]'}, fu
     graph.inspect().main.force.on('end.setupfornetdisco', function() {
       graph.inspect().main.nodes.each(function(n) { n.fixed = true });
 
-      // FIXME
-      $.post(
-        '[% uri_for('/ajax/data/device/netmappositions') %]'
-        ,'positions=' + JSON.stringify(graph.positions())
-      );
+      if (mapdata['v3']['newnodes']) {
+        $.post(
+          '[% uri_for('/ajax/data/device/netmappositions') %]'
+          ,'positions=' + JSON.stringify(graph.positions())
+        );
+      }
 
       graph['nd2'] = {};
       graph['nd2']['dragging'] = false;
@@ -89,7 +90,7 @@ $.getJSON('[% uri_for('/ajax/data/device/netmap') %]', {q: '[% params.q %]'}, fu
       }),
       'links': mapdata['v3']['links']
     }};
-    graph.start();
+    graph.start(netmapdata);
 
     // center on our selected device
 //    graph.inspect().main.force.on('end.centernode', function() {