diff --git a/net/LWIPInterface/LWIPInterface.cpp b/net/LWIPInterface/LWIPInterface.cpp
new file mode 100644
index 0000000000..b2d4ad6247
--- /dev/null
+++ b/net/LWIPInterface/LWIPInterface.cpp
@@ -0,0 +1,206 @@
+/* LWIP implementation of NetworkInterfaceAPI
+ * Copyright (c) 2015 ARM Limited
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "LWIPInterface.h"
+
+#include "mbed.h"
+#include "lwip/inet.h"
+#include "lwip/netif.h"
+#include "lwip/dhcp.h"
+#include "lwip/tcpip.h"
+#include "lwip/sockets.h"
+#include "lwip/netdb.h"
+#include "netif/etharp.h"
+#include "eth_arch.h"
+
+
+#define LWIP_TIMEOUT 15000
+
+
+/* TCP/IP and Network Interface Initialisation */
+static struct netif netif;
+
+static char ip_addr[NS_IP_SIZE] = "\0";
+static char mac_addr[NS_MAC_SIZE] = "\0";
+
+static Semaphore tcpip_inited(0);
+static Semaphore netif_linked(0);
+static Semaphore netif_up(0);
+
+static void tcpip_init_done(void *)
+{
+    tcpip_inited.release();
+}
+
+static void netif_link_callback(struct netif *netif)
+{
+    if (netif_is_link_up(netif)) {
+        netif_linked.release();
+    }
+}
+
+static void netif_status_callback(struct netif *netif)
+{
+    if (netif_is_up(netif)) {
+        strcpy(ip_addr, inet_ntoa(netif->ip_addr));
+        netif_up.release();
+    }
+}
+
+static void init_netif(ip_addr_t *ipaddr, ip_addr_t *netmask, ip_addr_t *gw)
+{
+    tcpip_init(tcpip_init_done, NULL);
+    tcpip_inited.wait();
+
+    memset((void*) &netif, 0, sizeof(netif));
+    netif_add(&netif, ipaddr, netmask, gw, NULL, eth_arch_enetif_init, tcpip_input);
+    netif_set_default(&netif);
+
+    netif_set_link_callback  (&netif, netif_link_callback);
+    netif_set_status_callback(&netif, netif_status_callback);
+}
+
+static void set_mac_address(void)
+{
+#if (MBED_MAC_ADDRESS_SUM != MBED_MAC_ADDR_INTERFACE)
+    snprintf(mac_addr, 19, "%02x:%02x:%02x:%02x:%02x:%02x", MBED_MAC_ADDR_0, MBED_MAC_ADDR_1, MBED_MAC_ADDR_2,
+             MBED_MAC_ADDR_3, MBED_MAC_ADDR_4, MBED_MAC_ADDR_5);
+#else
+    char mac[6];
+    mbed_mac_address(mac);
+    snprintf(mac_addr, 19, "%02x:%02x:%02x:%02x:%02x:%02x", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
+#endif
+}
+
+
+// LWIPInterface implementation
+int32_t LWIPInterface::connect()
+{
+    // Set up network
+    set_mac_address();
+    init_netif(0, 0, 0);
+
+    // Connect to network
+    eth_arch_enable_interrupts();
+
+    dhcp_start(&netif);
+
+    // Wait for an IP Address
+    // -1: error, 0: timeout
+    if (netif_up.wait(LWIP_TIMEOUT) < 0) {
+        return NS_ERROR_TIMEOUT;
+    }
+
+    return 0;
+}
+
+int32_t LWIPInterface::disconnect()
+{
+    dhcp_release(&netif);
+    dhcp_stop(&netif);
+
+    eth_arch_disable_interrupts();
+
+    return 0;
+}
+
+const char *LWIPInterface::getIPAddress()
+{
+    return ip_addr;
+}
+
+const char *LWIPInterface::getMACAddress()
+{
+    return mac_addr;
+}
+
+SocketInterface *LWIPInterface::createSocket(ns_protocol_t proto)
+{
+    int type = (proto == NS_UDP) ? SOCK_DGRAM : SOCK_STREAM;
+    int fd = lwip_socket(AF_INET, type, 0);
+    if (fd < 0) {
+        return 0;
+    }
+
+    return new LWIPSocket(fd);
+}
+
+void LWIPInterface::destroySocket(SocketInterface *siface)
+{
+    LWIPSocket *socket = (LWIPSocket *)siface;
+    lwip_close(socket->fd);
+
+    delete socket;
+}
+
+
+// TCP SocketInterface implementation
+int32_t LWIPInterface::LWIPSocket::open(const char *ip, uint16_t port)
+{
+    struct sockaddr_in host;
+    memset(&host, 0, sizeof host);
+    inet_aton(ip, &host.sin_addr);
+    host.sin_family = AF_INET;
+    host.sin_port = htons(port);
+
+    if (lwip_connect(fd, (const struct sockaddr *)&host, sizeof host) < 0) {
+        return NS_ERROR_NO_CONNECTION;
+    }
+
+    return 0;
+}
+
+int32_t LWIPInterface::LWIPSocket::close()
+{
+    return 0;
+}
+
+int32_t LWIPInterface::LWIPSocket::send(const void *voiddata, uint32_t size)
+{
+    uint8_t *data = (uint8_t *)voiddata;
+    uint32_t writtenLen = 0;
+
+    while (writtenLen < size) {
+        int ret = lwip_send(fd, data + writtenLen, size - writtenLen, 0);
+
+        if (ret > 0) {
+            writtenLen += ret;
+        } else if (ret == 0) {
+            return NS_ERROR_NO_CONNECTION;
+        } else {
+            return NS_ERROR_DEVICE_ERROR;
+        }
+    }
+
+    return writtenLen;
+}
+
+int32_t LWIPInterface::LWIPSocket::recv(void *data, uint32_t size)
+{
+    int ret = lwip_recv(fd, data, size, MSG_DONTWAIT);
+
+    if (ret > 0) {
+        return ret;
+    } else if (ret == 0) {
+        return NS_ERROR_NO_CONNECTION;
+    } else if (ret == -1) {
+        return NS_ERROR_WOULD_BLOCK;
+    } else {
+        return NS_ERROR_DEVICE_ERROR;
+    }
+}
+
+
diff --git a/net/LWIPInterface/LWIPInterface.h b/net/LWIPInterface/LWIPInterface.h
new file mode 100644
index 0000000000..4d5b467a5e
--- /dev/null
+++ b/net/LWIPInterface/LWIPInterface.h
@@ -0,0 +1,63 @@
+/* LWIP implementation of NetworkInterfaceAPI
+ * Copyright (c) 2015 ARM Limited
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef LWIP_INTERFACE_H
+#define LWIP_INTERFACE_H
+
+#include "EthernetInterface.h"
+#include "rtos.h"
+#include "lwip/netif.h"
+
+
+/** LWIPInterface class
+ *  Implementation of the NetworkInterface for LWIP
+ */
+class LWIPInterface : public EthernetInterface
+{
+public:
+
+    // Implementation of EthernetInterface
+    virtual int32_t connect();
+    virtual int32_t disconnect();
+
+    // Implementation of NetworkInterface
+    virtual const char *getIPAddress();
+    virtual const char *getMACAddress();
+
+    virtual SocketInterface *createSocket(ns_protocol_t proto);
+    virtual void destroySocket(SocketInterface *socket);
+
+private:
+
+    // Implementation of the TCP SocketInterface for LWIP
+    class LWIPSocket : public SocketInterface
+    {
+    public:
+
+        LWIPSocket(int fd) : fd(fd) {}
+        int fd;
+
+        // Implementation of SocketInterface
+        virtual int32_t open(const char *ip, uint16_t port);
+        virtual int32_t close();
+
+        virtual int32_t send(const void *data, uint32_t size);
+        virtual int32_t recv(void *data, uint32_t size);
+    };
+};
+
+
+#endif
diff --git a/net/LWIPInterface/eth_arch.h b/net/LWIPInterface/eth_arch.h
new file mode 100644
index 0000000000..1ff54b1d38
--- /dev/null
+++ b/net/LWIPInterface/eth_arch.h
@@ -0,0 +1,41 @@
+/* EthernetInterface.h */
+/* Copyright (C) 2012 mbed.org, MIT License
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+ * and associated documentation files (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge, publish, distribute,
+ * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all copies or
+ * substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
+ * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+// Architecture specific Ethernet interface
+// Must be implemented by each target
+
+#ifndef ETHARCH_H_
+#define ETHARCH_H_
+
+#include "lwip/netif.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void eth_arch_enable_interrupts(void);
+void eth_arch_disable_interrupts(void);
+err_t eth_arch_enetif_init(struct netif *netif);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // #ifndef ETHARCHINTERFACE_H_
+
diff --git a/net/LWIPInterface/lwipopts.h b/net/LWIPInterface/lwipopts.h
new file mode 100644
index 0000000000..679784f586
--- /dev/null
+++ b/net/LWIPInterface/lwipopts.h
@@ -0,0 +1,156 @@
+/* Copyright (C) 2012 mbed.org, MIT License
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+ * and associated documentation files (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge, publish, distribute,
+ * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all copies or
+ * substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
+ * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef LWIPOPTS_H
+#define LWIPOPTS_H
+
+#include "lwipopts_conf.h"
+
+// Workaround for Linux timeval
+#if defined (TOOLCHAIN_GCC)
+#define LWIP_TIMEVAL_PRIVATE 0
+#include <sys/time.h>
+#endif
+
+// Operating System 
+#define NO_SYS                      0
+
+#if NO_SYS == 0
+#include "cmsis_os.h"
+
+#define SYS_LIGHTWEIGHT_PROT        1
+
+#define LWIP_RAW                    0
+
+#define TCPIP_MBOX_SIZE             8
+#define DEFAULT_TCP_RECVMBOX_SIZE   8
+#define DEFAULT_UDP_RECVMBOX_SIZE   8
+#define DEFAULT_RAW_RECVMBOX_SIZE   8
+#define DEFAULT_ACCEPTMBOX_SIZE     8
+
+#define TCPIP_THREAD_STACKSIZE      1024
+#define TCPIP_THREAD_PRIO           (osPriorityNormal)
+
+#define DEFAULT_THREAD_STACKSIZE    512
+
+#define MEMP_NUM_SYS_TIMEOUT        16
+#endif
+
+// 32-bit alignment
+#define MEM_ALIGNMENT               4
+
+#define PBUF_POOL_SIZE              5
+#define MEMP_NUM_TCP_PCB_LISTEN     4
+#define MEMP_NUM_TCP_PCB            4
+#define MEMP_NUM_UDP_PCB            4
+#define MEMP_NUM_PBUF               8
+#define MEMP_NUM_NETBUF             8
+
+#define TCP_QUEUE_OOSEQ             0
+#define TCP_OVERSIZE                0
+
+#define LWIP_DHCP                   1
+#define LWIP_DNS                    1
+
+// Support Multicast
+#include "stdlib.h"
+#define LWIP_IGMP                   1
+#define LWIP_RAND()                 rand()
+
+#define LWIP_COMPAT_SOCKETS         0
+#define LWIP_POSIX_SOCKETS_IO_NAMES 0
+#define LWIP_SO_RCVTIMEO            1
+#define LWIP_TCP_KEEPALIVE          1
+
+// Debug Options
+// #define LWIP_DEBUG
+#define UDP_LPC_EMAC                LWIP_DBG_OFF
+#define SYS_DEBUG                   LWIP_DBG_OFF
+#define PPP_DEBUG                   LWIP_DBG_OFF
+#define IP_DEBUG                    LWIP_DBG_OFF
+#define MEM_DEBUG                   LWIP_DBG_OFF
+#define MEMP_DEBUG                  LWIP_DBG_OFF
+#define PBUF_DEBUG                  LWIP_DBG_OFF
+#define API_LIB_DEBUG               LWIP_DBG_OFF
+#define API_MSG_DEBUG               LWIP_DBG_OFF
+#define TCPIP_DEBUG                 LWIP_DBG_OFF
+#define SOCKETS_DEBUG               LWIP_DBG_OFF
+#define TCP_DEBUG                   LWIP_DBG_OFF
+#define TCP_INPUT_DEBUG             LWIP_DBG_OFF
+#define TCP_FR_DEBUG                LWIP_DBG_OFF
+#define TCP_RTO_DEBUG               LWIP_DBG_OFF
+#define TCP_CWND_DEBUG              LWIP_DBG_OFF
+#define TCP_WND_DEBUG               LWIP_DBG_OFF
+#define TCP_OUTPUT_DEBUG            LWIP_DBG_OFF
+#define TCP_RST_DEBUG               LWIP_DBG_OFF
+#define TCP_QLEN_DEBUG              LWIP_DBG_OFF
+#define ETHARP_DEBUG                LWIP_DBG_OFF
+#define NETIF_DEBUG                 LWIP_DBG_OFF
+#define DHCP_DEBUG                  LWIP_DBG_OFF
+
+#ifdef LWIP_DEBUG
+#define MEMP_OVERFLOW_CHECK         1
+#define MEMP_SANITY_CHECK           1
+#else
+#define LWIP_NOASSERT               1
+#define LWIP_STATS                  0
+#endif
+
+#define LWIP_PLATFORM_BYTESWAP      1
+
+#if LWIP_TRANSPORT_ETHERNET
+
+/* MSS should match the hardware packet size */
+#define TCP_MSS                     1460
+#define TCP_SND_BUF                 (2 * TCP_MSS)
+#define TCP_WND                     (2 * TCP_MSS)
+#define TCP_SND_QUEUELEN            (2 * TCP_SND_BUF/TCP_MSS)
+
+// Broadcast
+#define IP_SOF_BROADCAST            1
+#define IP_SOF_BROADCAST_RECV       1
+
+#define LWIP_BROADCAST_PING         1
+
+#define LWIP_CHECKSUM_ON_COPY       1
+
+#define LWIP_NETIF_HOSTNAME         1
+#define LWIP_NETIF_STATUS_CALLBACK  1
+#define LWIP_NETIF_LINK_CALLBACK    1
+
+#elif LWIP_TRANSPORT_PPP
+
+#define TCP_SND_BUF                     (3 * 536)
+#define TCP_WND                         (2 * 536)
+
+#define LWIP_ARP 0
+
+#define PPP_SUPPORT 1
+#define CHAP_SUPPORT                    1
+#define PAP_SUPPORT                     1
+#define PPP_THREAD_STACKSIZE            4*192
+#define PPP_THREAD_PRIO 0
+
+#define MAXNAMELEN                      64     /* max length of hostname or name for auth */
+#define MAXSECRETLEN                    64
+
+#else
+#error A transport mechanism (Ethernet or PPP) must be defined
+#endif
+
+#endif /* LWIPOPTS_H_ */