diff --git a/DNSServer.py b/DNSServer.py
index 54c553a8..9cc396bc 100755
--- a/DNSServer.py
+++ b/DNSServer.py
@@ -320,6 +320,7 @@ def Run(cmdPipe, param):
     cfg_IP_self = param['IP_self']
     cfg_Port_DNSServer = param['CSettings'].getSetting('port_dnsserver')
     cfg_IP_DNSMaster = param['CSettings'].getSetting('ip_dnsmaster')
+    cfg_Port_DNSMaster = param['CSettings'].getSetting('port_dnsmaster')
     
     try:
         DNS = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
@@ -349,7 +350,7 @@ def Run(cmdPipe, param):
     dprint(__name__, 0, "DNSServer: Serving DNS on {0} port {1}.", cfg_IP_self, cfg_Port_DNSServer)
     dprint(__name__, 1, "intercept: {0} => {1}", intercept, cfg_IP_self)
     dprint(__name__, 1, "restrain: {0} => 127.0.0.1", restrain)
-    dprint(__name__, 1, "forward other to higher level DNS: "+cfg_IP_DNSMaster)
+    dprint(__name__, 1, "forward other to higher level DNS {0} port {1}.", cfg_IP_DNSMaster, cfg_Port_DNSMaster)
     dprint(__name__, 0, "***")
     
     try:
@@ -415,7 +416,7 @@ def Run(cmdPipe, param):
                         dprint(__name__, 0, "Failed to create socket for DNS_forward): {0}", e)
                         continue
                     
-                    DNS_forward.sendto(data, (cfg_IP_DNSMaster, 53))
+                    DNS_forward.sendto(data, (cfg_IP_DNSMaster, int(cfg_Port_DNSMaster)))
                     paket, addr_master = DNS_forward.recvfrom(1024)
                     DNS_forward.close()
                     # todo: double check: ID has to be the same!
diff --git a/Settings.py b/Settings.py
index 5b8ca03d..b7b3bce8 100755
--- a/Settings.py
+++ b/Settings.py
@@ -15,7 +15,7 @@
 syntax: 'setting': ('default', 'regex to validate')
 
 PMS: plexgdm, ip_pms, port_pms
-DNS: ip_dnsmaster - IP of Router, ISP's DNS, ... [dflt: google public DNS]
+DNS: ip_dnsmaster, port_dnsmaster - IP of Router, ISP's DNS, Other local DNS service, ... [dflt: google public DNS, port 53]
 IP_self: enable_plexconnect_autodetect, ip_plexconnect - manual override for VPN usage
 Intercept: Trailers-trailers.apple.com, WSJ-secure.marketwatch.com, iMovie-www.icloud.com
 HTTP: port_webserver - override when using webserver + forwarding to PlexConnect
@@ -30,6 +30,7 @@
     ('enable_dnsserver', ('True', '((True)|(False))')),
     ('port_dnsserver'  , ('53', '[0-9]{1,5}')),
     ('ip_dnsmaster'    , ('8.8.8.8', '([0-9]{1,3}\.){3}[0-9]{1,3}')),
+    ('port_dnsmaster'  , ('53', '[0-9]{1,5}')),
     ('prevent_atv_update'           , ('True', '((True)|(False))')),
     ('intercept_atv_icon'           , ('True', '((True)|(False))')),
     \