diff --git a/libi2pd/RouterContext.cpp b/libi2pd/RouterContext.cpp
index cfb92f00..38fd46ce 100644
--- a/libi2pd/RouterContext.cpp
+++ b/libi2pd/RouterContext.cpp
@@ -178,52 +178,56 @@ namespace i2p
 		}
 		if (ipv6)
 		{
-			std::string host; i2p::config::GetOption("address6", host);
-			if (host.empty () && !ipv4) i2p::config::GetOption("host", host); // use host for ipv6 only if ipv4 is not presented
+			auto ipv6addr = i2p::util::net::GetClearnetIPV6Address ();
+			if (!ipv6addr.is_unspecified ())
+			{	
+				std::string host; i2p::config::GetOption("address6", host);
+				if (host.empty () && !ipv4) i2p::config::GetOption("host", host); // use host for ipv6 only if ipv4 is not presented
 
-			if (ntcp2)
-			{
-				uint16_t ntcp2Port; i2p::config::GetOption ("ntcp2.port", ntcp2Port);
-				if (!ntcp2Port) ntcp2Port = port;
-				if (ntcp2Published && ntcp2Port)
+				if (ntcp2)
 				{
-					std::string ntcp2Host;
-					if (!i2p::config::IsDefault ("ntcp2.addressv6"))
-						i2p::config::GetOption ("ntcp2.addressv6", ntcp2Host);
+					uint16_t ntcp2Port; i2p::config::GetOption ("ntcp2.port", ntcp2Port);
+					if (!ntcp2Port) ntcp2Port = port;
+					if (ntcp2Published && ntcp2Port)
+					{
+						std::string ntcp2Host;
+						if (!i2p::config::IsDefault ("ntcp2.addressv6"))
+							i2p::config::GetOption ("ntcp2.addressv6", ntcp2Host);
+						else
+							ntcp2Host = host;
+						boost::asio::ip::address addr;
+						if (!ntcp2Host.empty ())
+							addr = boost::asio::ip::make_address (ntcp2Host);
+						if (!addr.is_v6())
+							addr = boost::asio::ip::address_v6 ();
+						routerInfo.AddNTCP2Address (m_NTCP2Keys->staticPublicKey, m_NTCP2Keys->iv, addr, ntcp2Port);
+					}
 					else
-						ntcp2Host = host;
-					boost::asio::ip::address addr;
-					if (!ntcp2Host.empty ())
-						addr = boost::asio::ip::make_address (ntcp2Host);
-					if (!addr.is_v6())
-						addr = boost::asio::ip::address_v6 ();
-					routerInfo.AddNTCP2Address (m_NTCP2Keys->staticPublicKey, m_NTCP2Keys->iv, addr, ntcp2Port);
+					{
+						if (!ipv4) // no other ntcp2 addresses yet
+							routerInfo.AddNTCP2Address (m_NTCP2Keys->staticPublicKey, m_NTCP2Keys->iv, ntcp2Port, i2p::data::RouterInfo::AddressCaps::eV6);
+					}
 				}
-				else
+				if (ssu2)
 				{
-					if (!ipv4) // no other ntcp2 addresses yet
-						routerInfo.AddNTCP2Address (m_NTCP2Keys->staticPublicKey, m_NTCP2Keys->iv, ntcp2Port, i2p::data::RouterInfo::AddressCaps::eV6);
+					uint16_t ssu2Port; i2p::config::GetOption ("ssu2.port", ssu2Port);
+					if (!ssu2Port) ssu2Port = port;
+					if (ssu2Published && ssu2Port)
+					{
+						boost::asio::ip::address addr;
+						if (!host.empty ())
+							addr = boost::asio::ip::make_address (host);
+						if (!addr.is_v6())
+							addr = boost::asio::ip::address_v6 ();
+						routerInfo.AddSSU2Address (m_SSU2Keys->staticPublicKey, m_SSU2Keys->intro, addr, ssu2Port);
+					}
+					else
+					{
+						if (!ipv4) // no other ssu2 addresses yet
+							routerInfo.AddSSU2Address (m_SSU2Keys->staticPublicKey, m_SSU2Keys->intro, ssu2Port, i2p::data::RouterInfo::AddressCaps::eV6);
+					}
 				}
-			}
-			if (ssu2)
-			{
-				uint16_t ssu2Port; i2p::config::GetOption ("ssu2.port", ssu2Port);
-				if (!ssu2Port) ssu2Port = port;
-				if (ssu2Published && ssu2Port)
-				{
-					boost::asio::ip::address addr;
-					if (!host.empty ())
-						addr = boost::asio::ip::make_address (host);
-					if (!addr.is_v6())
-						addr = boost::asio::ip::address_v6 ();
-					routerInfo.AddSSU2Address (m_SSU2Keys->staticPublicKey, m_SSU2Keys->intro, addr, ssu2Port);
-				}
-				else
-				{
-					if (!ipv4) // no other ssu2 addresses yet
-						routerInfo.AddSSU2Address (m_SSU2Keys->staticPublicKey, m_SSU2Keys->intro, ssu2Port, i2p::data::RouterInfo::AddressCaps::eV6);
-				}
-			}
+			}	
 		}
 		if (ygg)
 		{
diff --git a/libi2pd/Transports.cpp b/libi2pd/Transports.cpp
index 98dbcd94..6c9e699a 100644
--- a/libi2pd/Transports.cpp
+++ b/libi2pd/Transports.cpp
@@ -1345,6 +1345,12 @@ namespace transport
 			}
 		}
 
+		if (ipv6 &&	i2p::util::net::GetClearnetIPV6Address ().is_unspecified ())
+		{
+			LogPrint(eLogWarning, "Transports: Clearnet ipv6 not found. Disabled");
+			ipv6 = false;
+		}	
+		
 		if (!i2p::config::IsDefault("port"))
 		{
 			LogPrint(eLogInfo, "Transports: Accepting incoming connections at port ", port);
diff --git a/libi2pd/util.cpp b/libi2pd/util.cpp
index 0bd19d23..9fd6ac23 100644
--- a/libi2pd/util.cpp
+++ b/libi2pd/util.cpp
@@ -545,7 +545,8 @@ namespace net
 		return (reservedPorts.find(port) != reservedPorts.end());
 	}
 
-	boost::asio::ip::address_v6 GetYggdrasilAddress ()
+	template<typename CheckAddress>
+	static boost::asio::ip::address_v6 GetLocalIPV6Address (CheckAddress checkAddress)
 	{
 #if defined(_WIN32)
 		ULONG outBufLen = 0;
@@ -580,7 +581,7 @@ namespace net
 			{
 				LPSOCKADDR lpAddr = pUnicast->Address.lpSockaddr;
 				sockaddr_in6 *localInterfaceAddress = (sockaddr_in6*) lpAddr;
-				if (IsYggdrasilAddress(localInterfaceAddress->sin6_addr.u.Byte)) {
+				if (checkAddress(localInterfaceAddress->sin6_addr.u.Byte)) {
 					boost::asio::ip::address_v6::bytes_type bytes;
 					memcpy (bytes.data (), &localInterfaceAddress->sin6_addr.u.Byte, 16);
 					FREE(pAddresses);
@@ -590,7 +591,7 @@ namespace net
 			}
 			pCurrAddresses = pCurrAddresses->Next;
 		}
-		LogPrint(eLogWarning, "NetIface: Interface with Yggdrasil network address not found");
+		LogPrint(eLogWarning, "NetIface: Interface with ipv6 network address not found");
 		FREE(pAddresses);
 		return boost::asio::ip::address_v6 ();
 #else
@@ -604,7 +605,7 @@ namespace net
 					if (cur->ifa_addr && cur->ifa_addr->sa_family == AF_INET6)
 					{
 						sockaddr_in6* sa = (sockaddr_in6*)cur->ifa_addr;
-						if (IsYggdrasilAddress(sa->sin6_addr.s6_addr))
+						if (checkAddress(sa->sin6_addr.s6_addr))
 						{
 							boost::asio::ip::address_v6::bytes_type bytes;
 							memcpy (bytes.data (), &sa->sin6_addr, 16);
@@ -617,14 +618,27 @@ namespace net
 		}
 		catch (std::exception& ex)
 		{
-			LogPrint(eLogError, "NetIface: Exception while searching Yggdrasill address using ifaddr: ", ex.what());
+			LogPrint(eLogError, "NetIface: Exception while searching ipv6 address using ifaddr: ", ex.what());
 		}
-		LogPrint(eLogWarning, "NetIface: Interface with Yggdrasil network address not found");
+		LogPrint(eLogWarning, "NetIface: Interface with ipv6 network address not found");
 		if (addrs) freeifaddrs(addrs);
 		return boost::asio::ip::address_v6 ();
 #endif
 	}
 
+	boost::asio::ip::address_v6 GetYggdrasilAddress ()
+	{
+		return GetLocalIPV6Address ([](const uint8_t addr[16]) { return IsYggdrasilAddress (addr); });
+	}	
+
+	boost::asio::ip::address_v6 GetClearnetIPV6Address ()
+	{
+		return GetLocalIPV6Address ([](const uint8_t addr[16])
+			{
+				return (addr[0] & 0xF0) == 0x20; // 2000::/3
+			});	
+	}	
+	
 	bool IsLocalAddress (const boost::asio::ip::address& addr)
 	{
 		auto mtu = // TODO: implement better
diff --git a/libi2pd/util.h b/libi2pd/util.h
index 7bd35e67..683a2b1f 100644
--- a/libi2pd/util.h
+++ b/libi2pd/util.h
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2013-2024, The PurpleI2P Project
+* Copyright (c) 2013-2025, The PurpleI2P Project
 *
 * This file is part of Purple i2pd project and licensed under BSD3
 *
@@ -231,6 +231,7 @@ namespace util
 		int GetMaxMTU (const boost::asio::ip::address_v6& localAddress); // check tunnel broker for ipv6 address
 		const boost::asio::ip::address GetInterfaceAddress (const std::string & ifname, bool ipv6=false);
 		boost::asio::ip::address_v6 GetYggdrasilAddress ();
+		boost::asio::ip::address_v6 GetClearnetIPV6Address ();
 		bool IsLocalAddress (const boost::asio::ip::address& addr);
 		bool IsInReservedRange (const boost::asio::ip::address& host);
 		bool IsYggdrasilAddress (const boost::asio::ip::address& addr);