diff --git a/dhcp-to-dns.rsc b/dhcp-to-dns.rsc
index d176b9f7..088c2dee 100644
--- a/dhcp-to-dns.rsc
+++ b/dhcp-to-dns.rsc
@@ -72,15 +72,21 @@
       :continue;
     }
 
-    :local Comment ($CommentPrefix . ", macaddress=" . $LeaseVal->"active-mac-address" . ", server=" . $LeaseVal->"server");
-    :local MacDash [ $CleanName ($LeaseVal->"active-mac-address") ];
-    :local HostName [ $CleanName [ $EitherOr ([ $ParseKeyValueStore ($LeaseVal->"comment") ]->"hostname") ($LeaseVal->"host-name") ] ];
     :local Network [ /ip/dhcp-server/network/find where ($LeaseVal->"active-address") in address ];
     :local NetworkVal;
     :if ([ :len $Network ] > 0) do={
       :set NetworkVal [ /ip/dhcp-server/network/get ($Network->0) ];
     }
     :local NetworkInfo [ $ParseKeyValueStore ($NetworkVal->"comment") ];
+
+    :if ($NetworkInfo->"dns-ignore" = true) do={
+      $LogPrint debug $ScriptName ("Lease for " . $LeaseVal->"active-mac-address" . " is in ignored network... Skipping.");
+      :continue;
+    }
+
+    :local Comment ($CommentPrefix . ", macaddress=" . $LeaseVal->"active-mac-address" . ", server=" . $LeaseVal->"server");
+    :local MacDash [ $CleanName ($LeaseVal->"active-mac-address") ];
+    :local HostName [ $CleanName [ $EitherOr ([ $ParseKeyValueStore ($LeaseVal->"comment") ]->"hostname") ($LeaseVal->"host-name") ] ];
     :local NetDomain ([ $IfThenElse ([ :len ($NetworkInfo->"name-extra") ] > 0) ($NetworkInfo->"name-extra" . ".") ] . \
       [ $EitherOr [ $EitherOr ($NetworkInfo->"domain") ($NetworkVal->"domain") ] $Domain ]);
     :local FullA ($MacDash . "." . $NetDomain);
diff --git a/doc/dhcp-to-dns.md b/doc/dhcp-to-dns.md
index 47e01ae5..6f18ce90 100644
--- a/doc/dhcp-to-dns.md
+++ b/doc/dhcp-to-dns.md
@@ -50,14 +50,19 @@ A bound lease for mac address `00:11:22:33:44:55` with ip address
 `10.0.0.50` would result in an A record `00-11-22-33-44-55.example.com`
 pointing to the given ip address.
 
-Additional options can be given from comment, to add an extra level in
-dns name or define a different domain.
+Additional options can be given from comment, first of all you can opt-out
+for specific networks:
+
+    /ip/dhcp-server/network/add address=10.0.0.0/24 domain=example.com comment="dns-ignore=true";
+
+Use this to add an extra level in dns name or define a different domain.
 
     /ip/dhcp-server/network/add address=10.0.0.0/24 domain=example.com comment="domain=another-domain.com, name-extra=dhcp";
 
 This example would result in name `00-11-22-33-44-55.dhcp.another-domain.com`
 for the same lease.
 
+
 If no domain is found in dhcp server's network definition a fallback from
 `global-config-overlay` is used. This is the parameter: