diff --git a/src/cdmrmmdvmprotocol.cpp b/src/cdmrmmdvmprotocol.cpp
index 3e8868e..2f6c84c 100644
--- a/src/cdmrmmdvmprotocol.cpp
+++ b/src/cdmrmmdvmprotocol.cpp
@@ -130,8 +130,8 @@ void CDmrmmdvmProtocol::Task(void)
             //std::cout << "DMRmmdvm DV last frame"  << std::endl;
             
             OnDvLastFramePacketIn(LastFrame, &Ip);
-       }
-        else if ( IsValidConnectPacket(Buffer, &Callsign) )
+        }
+        else if ( IsValidConnectPacket(Buffer, &Callsign, Ip) )
         {
             std::cout << "DMRmmdvm connect packet from " << Callsign << " at " << Ip << std::endl;
             
@@ -150,7 +150,7 @@ void CDmrmmdvmProtocol::Task(void)
             }
             
         }
-        else if ( IsValidAuthenticationPacket(Buffer, &Callsign) )
+        else if ( IsValidAuthenticationPacket(Buffer, &Callsign, Ip) )
         {
             std::cout << "DMRmmdvm authentication packet from " << Callsign << " at " << Ip << std::endl;
             
@@ -203,7 +203,7 @@ void CDmrmmdvmProtocol::Task(void)
             }
             g_Reflector.ReleaseClients();
         }
-        else if ( IsValidConfigPacket(Buffer, &Callsign) )
+        else if ( IsValidConfigPacket(Buffer, &Callsign, Ip) )
         {
             std::cout << "DMRmmdvm configuration packet from " << Callsign << " at " << Ip << std::endl;
             
@@ -517,7 +517,7 @@ bool CDmrmmdvmProtocol::IsValidKeepAlivePacket(const CBuffer &Buffer, CCallsign
     return valid;
 }
 
-bool CDmrmmdvmProtocol::IsValidConnectPacket(const CBuffer &Buffer, CCallsign *callsign)
+bool CDmrmmdvmProtocol::IsValidConnectPacket(const CBuffer &Buffer, CCallsign *callsign, const CIp &Ip)
 {
     uint8 tag[] = { 'R','P','T','L' };
     
@@ -530,13 +530,13 @@ bool CDmrmmdvmProtocol::IsValidConnectPacket(const CBuffer &Buffer, CCallsign *c
         valid = callsign->IsValid();
         if ( !valid)
         {
-            std::cout << "DMRmmdvm connect packet from unrecognized id " << (int)callsign->GetDmrid()  << std::endl;
+            std::cout << "DMRmmdvm connect packet from IP address " << Ip << " / unrecognized id " << (int)callsign->GetDmrid()  << std::endl;
         }
     }
     return valid;
 }
 
-bool CDmrmmdvmProtocol::IsValidAuthenticationPacket(const CBuffer &Buffer, CCallsign *callsign)
+bool CDmrmmdvmProtocol::IsValidAuthenticationPacket(const CBuffer &Buffer, CCallsign *callsign, const CIp &Ip)
 {
     uint8 tag[] = { 'R','P','T','K' };
     
@@ -547,6 +547,11 @@ bool CDmrmmdvmProtocol::IsValidAuthenticationPacket(const CBuffer &Buffer, CCall
         callsign->SetDmrid(uiRptrId, true);
         callsign->SetModule('B');
         valid = callsign->IsValid();
+        if ( !valid)
+        {
+            std::cout << "DMRmmdvm authnetication packet from IP address " << Ip << " / unrecognized id " << (int)callsign->GetDmrid()  << std::endl;
+        }
+
     }
     return valid;
 }
@@ -566,7 +571,7 @@ bool CDmrmmdvmProtocol::IsValidDisconnectPacket(const CBuffer &Buffer, CCallsign
     return valid;
 }
 
-bool CDmrmmdvmProtocol::IsValidConfigPacket(const CBuffer &Buffer, CCallsign *callsign)
+bool CDmrmmdvmProtocol::IsValidConfigPacket(const CBuffer &Buffer, CCallsign *callsign, const CIp &Ip)
 {
     uint8 tag[] = { 'R','P','T','C' };
     
@@ -577,6 +582,11 @@ bool CDmrmmdvmProtocol::IsValidConfigPacket(const CBuffer &Buffer, CCallsign *ca
         callsign->SetDmrid(uiRptrId, true);
         callsign->SetModule('B');
         valid = callsign->IsValid();
+        if ( !valid)
+        {
+            std::cout << "DMRmmdvm config packet from IP address " << Ip << " / unrecognized id " << (int)callsign->GetDmrid()  << std::endl;
+        }
+
     }
     return valid;
 }
@@ -671,7 +681,7 @@ bool CDmrmmdvmProtocol::IsValidDvHeaderPacket(const CBuffer &Buffer, CDvHeaderPa
                 }
                 
                 // build DVHeader
-                CCallsign csMY =  CCallsign("", uiSrcId);
+                CCallsign csMY = CCallsign("", uiSrcId);
                 CCallsign rpt1 = CCallsign("", uiRptrId);
                 rpt1.SetModule('B');
                 CCallsign rpt2 = m_ReflectorCallsign;
diff --git a/src/cdmrmmdvmprotocol.h b/src/cdmrmmdvmprotocol.h
index 2f221c5..c7acd98 100644
--- a/src/cdmrmmdvmprotocol.h
+++ b/src/cdmrmmdvmprotocol.h
@@ -86,10 +86,10 @@ protected:
     bool OnDvHeaderPacketIn(CDvHeaderPacket *, const CIp &, uint8, uint8);
     
     // packet decoding helpers
-    bool IsValidConnectPacket(const CBuffer &, CCallsign *);
-    bool IsValidAuthenticationPacket(const CBuffer &, CCallsign *);
+    bool IsValidConnectPacket(const CBuffer &, CCallsign *, const CIp &);
+    bool IsValidAuthenticationPacket(const CBuffer &, CCallsign *, const CIp &);
     bool IsValidDisconnectPacket(const CBuffer &, CCallsign *);
-    bool IsValidConfigPacket(const CBuffer &, CCallsign *);
+    bool IsValidConfigPacket(const CBuffer &, CCallsign *, const CIp &);
     bool IsValidOptionPacket(const CBuffer &, CCallsign *);
     bool IsValidKeepAlivePacket(const CBuffer &, CCallsign *);
     bool IsValidRssiPacket(const CBuffer &, CCallsign *, int *);
diff --git a/src/cdmrplusprotocol.cpp b/src/cdmrplusprotocol.cpp
index fb4f270..4106471 100644
--- a/src/cdmrplusprotocol.cpp
+++ b/src/cdmrplusprotocol.cpp
@@ -125,7 +125,7 @@ void CDmrplusProtocol::Task(void)
                 delete Header;
             }
         }
-        else if ( IsValidConnectPacket(Buffer, &Callsign, &ToLinkModule) )
+        else if ( IsValidConnectPacket(Buffer, &Callsign, &ToLinkModule, Ip) )
         {
             //std::cout << "DMRplus keepalive/connect packet for module " << ToLinkModule << " from " << Callsign << " at " << Ip << std::endl;
             
@@ -404,7 +404,7 @@ void CDmrplusProtocol::HandleKeepalives(void)
 ////////////////////////////////////////////////////////////////////////////////////////
 // packet decoding helpers
 
-bool CDmrplusProtocol::IsValidConnectPacket(const CBuffer &Buffer, CCallsign *callsign, char *reflectormodule)
+bool CDmrplusProtocol::IsValidConnectPacket(const CBuffer &Buffer, CCallsign *callsign, char *reflectormodule, const CIp &Ip)
 {
     bool valid = false;
     if ( Buffer.size() == 31 )
@@ -421,7 +421,7 @@ bool CDmrplusProtocol::IsValidConnectPacket(const CBuffer &Buffer, CCallsign *ca
         valid = (callsign->IsValid() && (std::isupper(*reflectormodule) || (*reflectormodule == ' ')) );
         if ( !valid)
         {
-            std::cout << "DMRplus connect packet from unrecognized id " << (int)callsign->GetDmrid()  << std::endl;
+            std::cout << "DMRplus connect packet from IP address " << Ip << " / unrecognized id " << (int)callsign->GetDmrid()  << std::endl;
         }
     }
     return valid;
diff --git a/src/cdmrplusprotocol.h b/src/cdmrplusprotocol.h
index 430f741..4b9bb52 100644
--- a/src/cdmrplusprotocol.h
+++ b/src/cdmrplusprotocol.h
@@ -78,7 +78,7 @@ protected:
     bool OnDvHeaderPacketIn(CDvHeaderPacket *, const CIp &);
     
     // packet decoding helpers
-    bool IsValidConnectPacket(const CBuffer &, CCallsign *, char *);
+    bool IsValidConnectPacket(const CBuffer &, CCallsign *, char *, const CIp &);
     bool IsValidDisconnectPacket(const CBuffer &, CCallsign *, char *);
     bool IsValidDvHeaderPacket(const CIp &, const CBuffer &, CDvHeaderPacket **);
     bool IsValidDvFramePacket(const CIp &, const CBuffer &, CDvFramePacket **);