eligble floodfill must be reachable by ipv4

libi2pd/RouterInfo.cpp

@@ -1163,9 +1163,8 @@ namespace data
 
 	bool RouterInfo::IsEligibleFloodfill () const 
 	{
-		// floodfill must be reachable somehow, >= 0.9.28 and not DSA
+		// floodfill must be reachable by ipv4, >= 0.9.28 and not DSA
-		return (IsReachable () || (m_SupportedTransports & eSSUV4)) && 
+		return IsReachableBy (eNTCP2V4 | eSSUV4) && m_Version >= NETDB_MIN_FLOODFILL_VERSION &&
-			m_Version >= NETDB_MIN_FLOODFILL_VERSION &&
 			GetIdentity ()->GetSigningKeyType () != SIGNING_KEY_TYPE_DSA_SHA1; 
 	}	
 

libi2pd/RouterInfo.h

@@ -206,7 +206,7 @@ namespace data
 			void DisableMesh ();	
 			bool IsCompatible (const RouterInfo& other) const { return m_SupportedTransports & other.m_SupportedTransports; };	
 			bool IsReachableFrom (const RouterInfo& other) const { return m_ReachableTransports & other.m_SupportedTransports; };
-			bool IsReachableBy (SupportedTransports transport) const { return m_ReachableTransports & transport; };
+			bool IsReachableBy (uint8_t transports) const { return m_ReachableTransports & transports; };
 			bool HasValidAddresses () const { return m_SupportedTransports; };
 			bool IsHidden () const { return m_Caps & eHidden; };
 			bool IsHighBandwidth () const { return m_Caps & RouterInfo::eHighBandwidth; };