diff --git a/reflector/Configure.cpp b/reflector/Configure.cpp
index 445e953..ca28935 100644
--- a/reflector/Configure.cpp
+++ b/reflector/Configure.cpp
@@ -83,6 +83,7 @@
 #define JTRANSCODER              "Transcoder"
 #define JTXPORT                  "TxPort"
 #define JURF                     "URF"
+#define JENABLEDGID              "EnableDGID"
 #define JURL                     "URL"
 #define JUSRP                    "USRP"
 #define JWHITELISTPATH           "WhitelistPath"
@@ -428,6 +429,8 @@ bool CConfigure::ReadData(const std::string &path)
 					data[g_Keys.ysf.port] = getUnsigned(value, "YSF Port", 1024, 65535, 42000);
 				else if (0 == key.compare(JAUTOLINKMODULE))
 					setAutolink(JYSF, g_Keys.ysf.autolinkmod, value);
+				else if (0 == key.compare(JENABLEDGID))
+					data[g_Keys.ysf.enabledgid] = IS_TRUE(value[0]);
 				else if (0 == key.compare(JDEFAULTTXFREQ))
 					data[g_Keys.ysf.defaulttxfreq] = getUnsigned(value, "YSF DefaultTxFreq", 40000000, 2600000000, 439000000);
 				else if (0 == key.compare(JDEFAULTRXFREQ))
@@ -753,6 +756,7 @@ bool CConfigure::ReadData(const std::string &path)
 
 	// YSF
 	isDefined(ErrorLevel::fatal, JYSF, JPORT, g_Keys.ysf.port, rval);
+	isDefined(ErrorLevel::mild, JYSF, JENABLEDGID, g_Keys.ysf.enabledgid, rval);
 	checkAutoLink(JYSF, JAUTOLINKMODULE, g_Keys.ysf.autolinkmod, rval);
 	isDefined(ErrorLevel::fatal, JYSF, JDEFAULTRXFREQ, g_Keys.ysf.defaultrxfreq, rval);
 	isDefined(ErrorLevel::fatal, JYSF, JDEFAULTTXFREQ, g_Keys.ysf.defaulttxfreq, rval);
diff --git a/reflector/JsonKeys.h b/reflector/JsonKeys.h
index 72cfc0d..64a86e9 100644
--- a/reflector/JsonKeys.h
+++ b/reflector/JsonKeys.h
@@ -59,9 +59,9 @@ struct SJsonKeys {
 	p25 { "P25Port",  "P25AutolinkMod",   "P25ReflectorID" },
 	nxdn { "NXDNPort", "NXDNAutolinkMod", "NXDNReflectorID" };
 
-	struct YSF { const std::string port, autolinkmod, defaulttxfreq, defaultrxfreq;
+	struct YSF { const std::string port, autolinkmod, enabledgid, defaulttxfreq, defaultrxfreq;
 		struct YSLREG { const std::string id, name, description; } ysfreflectordb; }
-	ysf { "YSFPort", "YSFAutoLinkMod", "YSFDefaultTxFreq", "YSFDefaultRxFreq",
+	ysf { "YSFPort", "YSFAutoLinkMod", "YSFEnableDGID", "YSFDefaultTxFreq", "YSFDefaultRxFreq",
 		{ "ysfrefdbid", "ysfrefdbname", "ysfrefdbdesc" } };
 
 	struct DB { const std::string url, mode, refreshmin, filepath; }
diff --git a/reflector/YSFProtocol.cpp b/reflector/YSFProtocol.cpp
index 0795db0..4c8e6ab 100644
--- a/reflector/YSFProtocol.cpp
+++ b/reflector/YSFProtocol.cpp
@@ -42,6 +42,7 @@ bool CYsfProtocol::Initialize(const char *type, const EProtocol ptype, const uin
 {
 	// config data
 	m_AutolinkModule = g_Configure.GetAutolinkModule(g_Keys.ysf.autolinkmod);
+	m_EnableDGID = g_Configure.GetBoolean(g_Keys.ysf.enabledgid);
 	m_RegistrationId = g_Configure.GetUnsigned(g_Keys.ysf.ysfreflectordb.id);
 	m_RegistrationName.assign(g_Configure.GetString(g_Keys.ysf.ysfreflectordb.name));
 	m_RegistrationDesc.assign(g_Configure.GetString(g_Keys.ysf.ysfreflectordb.description));
@@ -130,7 +131,7 @@ void CYsfProtocol::Task(void)
 				if ( g_GateKeeper.MayTransmit(Header->GetMyCallsign(), Ip, EProtocol::ysf, Header->GetRpt2Module())  )
 				{
 					// handle it
-					OnDvHeaderPacketIn(Header, Ip);
+					OnDvHeaderPacketIn(Header, Ip, Fich.getSQ());
 					//OnDvFramePacketIn(Frames[0], &Ip);
 					//OnDvFramePacketIn(Frames[1], &Ip);
 				}
@@ -252,7 +253,7 @@ void CYsfProtocol::Task(void)
 ////////////////////////////////////////////////////////////////////////////////////////
 // streams helpers
 
-void CYsfProtocol::OnDvHeaderPacketIn(std::unique_ptr<CDvHeaderPacket> &Header, const CIp &Ip)
+void CYsfProtocol::OnDvHeaderPacketIn(std::unique_ptr<CDvHeaderPacket> &Header, const CIp &Ip, uint8_t dgid)
 {
 	// find the stream
 	auto stream = GetStream(Header->GetStreamId());
@@ -275,6 +276,16 @@ void CYsfProtocol::OnDvHeaderPacketIn(std::unique_ptr<CDvHeaderPacket> &Header,
 		{
 			// get client callsign
 			rpt1 = client->GetCallsign();
+
+			// module selection by DGID
+			if (m_EnableDGID && dgid >= 10 && dgid <= 35) {
+				char newModule = 'A' + (dgid - 10);
+				if (client->GetReflectorModule() != newModule) {
+					std::cout << "YSF: DGID module switch for " << client->GetCallsign() << " from " << client->GetReflectorModule() << " to " << newModule << std::endl;
+					client->SetReflectorModule(newModule);
+				}
+			}
+
 			// get module it's linked to
 			auto m = client->GetReflectorModule();
 			Header->SetRpt2Module(m);
@@ -537,7 +548,7 @@ bool CYsfProtocol::IsValidDvFramePacket(const CIp &Ip, const CYSFFICH &Fich, con
 
 			if ( g_GateKeeper.MayTransmit(header->GetMyCallsign(), Ip, EProtocol::ysf, header->GetRpt2Module())  )
 			{
-				OnDvHeaderPacketIn(header, Ip);
+				OnDvHeaderPacketIn(header, Ip, Fich.getSQ());
 			}
 		}
 
diff --git a/reflector/YSFProtocol.h b/reflector/YSFProtocol.h
index b3060c2..059dc37 100644
--- a/reflector/YSFProtocol.h
+++ b/reflector/YSFProtocol.h
@@ -79,7 +79,7 @@ protected:
 	void HandleKeepalives(void);
 
 	// stream helpers
-	void OnDvHeaderPacketIn(std::unique_ptr<CDvHeaderPacket> &, const CIp &);
+	void OnDvHeaderPacketIn(std::unique_ptr<CDvHeaderPacket> &, const CIp &, uint8_t = 0);
 
 	// DV packet decoding helpers
 	bool IsValidConnectPacket(const CBuffer &, CCallsign *);
@@ -132,6 +132,7 @@ protected:
 
 	// config data
 	char m_AutolinkModule;
+	bool m_EnableDGID;
 	unsigned m_RegistrationId;
 	std::string m_RegistrationName, m_RegistrationDesc;
 };