diff --git a/qse/include/qse/si/Socket.hpp b/qse/include/qse/si/Socket.hpp
index 7bf13a08..234d157c 100644
--- a/qse/include/qse/si/Socket.hpp
+++ b/qse/include/qse/si/Socket.hpp
@@ -76,10 +76,17 @@ public:
 
 	int shutdown (int how = 2) QSE_CPP_NOEXCEPT;
 	int connect (const SocketAddress& target) QSE_CPP_NOEXCEPT;
+
 	int bind (const SocketAddress& target) QSE_CPP_NOEXCEPT;
+	// bind to the ip address of the interface 
+	int bindToIfceAddr (const qse_mchar_t* ifce, qse_uint16_t port) QSE_CPP_NOEXCEPT;
+	// bind to the ip address of the interface
+	int bindToIfceAddr (const qse_wchar_t* ifce, qse_uint16_t port) QSE_CPP_NOEXCEPT;
+
 	int listen (int backlog = 128) QSE_CPP_NOEXCEPT;
 	int accept (Socket* newsck, SocketAddress* newaddr, int traits = 0) QSE_CPP_NOEXCEPT;
 
+
 	// The send() functions sends data by attemping a single call to the 
 	// underlying system calls
 	qse_ssize_t send (const void* buf, qse_size_t len) QSE_CPP_NOEXCEPT;
diff --git a/qse/include/qse/si/SocketAddress.hpp b/qse/include/qse/si/SocketAddress.hpp
index 29be0e68..5f748e41 100644
--- a/qse/include/qse/si/SocketAddress.hpp
+++ b/qse/include/qse/si/SocketAddress.hpp
@@ -66,6 +66,7 @@ public:
 
 	void setIpaddr (const qse_ip4ad_t* ipaddr) QSE_CPP_NOEXCEPT;
 	void setIpaddr (const qse_ip6ad_t* ipaddr) QSE_CPP_NOEXCEPT;
+	void setIpaddr (qse_uint32_t ipaddr) QSE_CPP_NOEXCEPT;
 
 	const qse_ip4ad_t* getIp4addr () const QSE_CPP_NOEXCEPT;
 	const qse_ip6ad_t* getIp6addr () const QSE_CPP_NOEXCEPT;
diff --git a/qse/lib/si/Socket.cpp b/qse/lib/si/Socket.cpp
index fc76f13e..c0b8a9c2 100644
--- a/qse/lib/si/Socket.cpp
+++ b/qse/lib/si/Socket.cpp
@@ -308,6 +308,20 @@ int Socket::bind (const SocketAddress& target) QSE_CPP_NOEXCEPT
 	return 0;
 }
 
+int Socket::bindToIfceAddr (const qse_mchar_t* ifce, qse_uint16_t port) QSE_CPP_NOEXCEPT
+{
+	SocketAddress addr;
+	if (this->getIfceAddress(ifce, &addr) <= -1) return -1;
+	return this->bind(addr);
+}
+
+int Socket::bindToIfceAddr (const qse_wchar_t* ifce, qse_uint16_t port) QSE_CPP_NOEXCEPT
+{
+	SocketAddress addr;
+	if (this->getIfceAddress(ifce, &addr) <= -1) return -1;
+	return this->bind(addr);
+}
+
 int Socket::listen (int backlog) QSE_CPP_NOEXCEPT
 {
 	QSE_ASSERT (this->handle != QSE_INVALID_SCKHND);
diff --git a/qse/lib/si/SocketAddress.cpp b/qse/lib/si/SocketAddress.cpp
index caa1ae6a..e862b24d 100644
--- a/qse/lib/si/SocketAddress.cpp
+++ b/qse/lib/si/SocketAddress.cpp
@@ -85,6 +85,7 @@
 #	define FAMILY(x) (-1)
 #endif
 
+#include <stdio.h>
 /////////////////////////////////
 QSE_BEGIN_NAMESPACE(QSE)
 /////////////////////////////////
@@ -128,6 +129,17 @@ void SocketAddress::setIpaddr (const qse_ip4ad_t* ipaddr) QSE_CPP_NOEXCEPT
 #endif
 }
 
+void SocketAddress::setIpaddr (const qse_uint32_t ipaddr) QSE_CPP_NOEXCEPT
+{
+#if defined(AF_INET)
+	if (FAMILY(&this->skad) == AF_INET)
+	{
+		struct sockaddr_in* v4 = (struct sockaddr_in*)&this->skad;
+		v4->sin_addr.s_addr = ipaddr;
+	}
+#endif
+}
+
 void SocketAddress::setIpaddr (const qse_ip6ad_t* ipaddr) QSE_CPP_NOEXCEPT
 {
 #if defined(AF_INET6)