diff --git a/core/net/ipv6/websocket-http-client.c b/core/net/ipv6/websocket-http-client.c
new file mode 100644
index 000000000..95ed74961
--- /dev/null
+++ b/core/net/ipv6/websocket-http-client.c
@@ -0,0 +1,337 @@
+/*
+ * Copyright (c) 2014, Thingsquare, http://www.thingsquare.com/.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the copyright holder nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "websocket-http-client.h"
+#include "net/ip/uiplib.h"
+#include "net/ip/resolv.h"
+
+#include "ip64-addr.h"
+
+#include <stdio.h>
+#include <string.h>
+
+#define DEBUG DEBUG_NONE
+#include "net/ip/uip-debug.h"
+
+enum {
+  STATE_WAITING_FOR_HEADER,
+  STATE_WAITING_FOR_CONNECTED,
+  STATE_STEADY_STATE,
+};
+/*---------------------------------------------------------------------------*/
+static void
+send_get(struct websocket_http_client_state *s)
+{
+  struct tcp_socket *tcps;
+
+  tcps = &s->s;
+  tcp_socket_send_str(tcps, "GET ");
+  tcp_socket_send_str(tcps, s->file);
+  tcp_socket_send_str(tcps, " HTTP/1.1\r\n");
+  tcp_socket_send_str(tcps, "Host: ");
+  tcp_socket_send_str(tcps, s->host);
+  tcp_socket_send_str(tcps, "\r\n");
+  if(strlen(s->header) > 0) {
+    tcp_socket_send_str(tcps, s->header);
+  }
+  tcp_socket_send_str(tcps,
+                      "Connection: Upgrade\r\n"
+                      "Upgrade: websocket\r\n"
+                      "Sec-WebSocket-Key: x3JJHMbDL1EzLkh9GBhXDw==\r\n"
+                      "Sec-WebSocket-Version: 13\r\n"
+                      "Sec-WebSocket-Protocol:");
+  tcp_socket_send_str(tcps, s->subprotocol);
+  tcp_socket_send_str(tcps, "\r\n");
+  tcp_socket_send_str(tcps, "\r\n");
+  PRINTF("websocket-http-client: send_get(): output buffer left %d\n", tcp_socket_max_sendlen(tcps));
+}
+/*---------------------------------------------------------------------------*/
+static void
+send_connect(struct websocket_http_client_state *s)
+{
+  struct tcp_socket *tcps;
+  char buf[20];
+
+  tcps = &s->s;
+  tcp_socket_send_str(tcps, "CONNECT ");
+  tcp_socket_send_str(tcps, s->host);
+  tcp_socket_send_str(tcps, ":");
+  sprintf(buf, "%d", s->port);
+  tcp_socket_send_str(tcps, buf);
+  tcp_socket_send_str(tcps, " HTTP/1.1\r\n");
+  tcp_socket_send_str(tcps, "Host: ");
+  tcp_socket_send_str(tcps, s->host);
+  tcp_socket_send_str(tcps, "\r\n");
+  tcp_socket_send_str(tcps, "Proxy-Connection: Keep-Alive\r\n\r\n");
+}
+/*---------------------------------------------------------------------------*/
+static void
+event(struct tcp_socket *tcps, void *ptr,
+      tcp_socket_event_t e)
+{
+  struct websocket_http_client_state *s = ptr;
+
+  if(e == TCP_SOCKET_CONNECTED) {
+    if(s->proxy_port != 0) {
+      send_connect(s);
+    } else {
+      send_get(s);
+    }
+  } else if(e == TCP_SOCKET_CLOSED) {
+    websocket_http_client_closed(s);
+  } else if(e == TCP_SOCKET_TIMEDOUT) {
+    websocket_http_client_timedout(s);
+  } else if(e == TCP_SOCKET_ABORTED) {
+    websocket_http_client_aborted(s);
+  } else if(e == TCP_SOCKET_DATA_SENT) {
+  }
+}
+/*---------------------------------------------------------------------------*/
+static int
+parse_header_byte(struct websocket_http_client_state *s,
+                  uint8_t b)
+{
+  static const char *endmarker = "\r\n\r\n";
+
+  PT_BEGIN(&s->parse_header_pt);
+
+  /* Skip the first part of the HTTP response */
+  while(b != ' ') {
+    PT_YIELD(&s->parse_header_pt);
+  }
+
+  /* Skip the space that follow the first part */
+  PT_YIELD(&s->parse_header_pt);
+
+  /* Read the first three bytes that consistute the HTTP status code. */
+  s->http_status = (b - '0');
+  PT_YIELD(&s->parse_header_pt);
+  s->http_status = s->http_status * 10 + (b - '0');
+  PT_YIELD(&s->parse_header_pt);
+  s->http_status = s->http_status * 10 + (b - '0');
+
+  if((s->proxy_port != 0 && !(s->http_status == 200 || s->http_status == 101)) ||
+     (s->proxy_port == 0 && s->http_status != 101)) {
+    /* This is a websocket request, so the server should have answered
+       with a 101 Switching protocols response. */
+    PRINTF("Websocket HTTP client didn't get the 101 status code (got %d), closing connection\n",
+           s->http_status);
+    websocket_http_client_close(s);
+    while(1) {
+      PT_YIELD(&s->parse_header_pt);
+    }
+  }
+
+
+  /* Keep eating header bytes until we reach the end of it. The end is
+     indicated by the string "\r\n\r\n". We don't actually look at any
+     of the headers.
+
+     The s->i variable contains the number of consecutive bytes
+     matched. If we match the total length of the string, we stop.
+  */
+
+  s->i = 0;
+  do {
+    PT_YIELD(&s->parse_header_pt);
+    if(b == (uint8_t)endmarker[s->i]) {
+      s->i++;
+    } else {
+      s->i = 0;
+    }
+  } while(s->i < strlen(endmarker));
+
+  if(s->proxy_port != 0 && s->state == STATE_WAITING_FOR_HEADER) {
+    send_get(s);
+    s->state = STATE_WAITING_FOR_CONNECTED;
+  } else {
+    s->state = STATE_STEADY_STATE;
+    websocket_http_client_connected(s);
+  }
+  PT_END(&s->parse_header_pt);
+}
+/*---------------------------------------------------------------------------*/
+static int
+input(struct tcp_socket *tcps, void *ptr,
+      const uint8_t *inputptr, int inputdatalen)
+{
+  struct websocket_http_client_state *s = ptr;
+
+  if(s->state == STATE_WAITING_FOR_HEADER ||
+     s->state == STATE_WAITING_FOR_CONNECTED) {
+    int i;
+    for(i = 0; i < inputdatalen; i++) {
+      parse_header_byte(s, inputptr[i]);
+      if(s->state == STATE_STEADY_STATE) {
+        i++;
+        break;
+      }
+    }
+
+    if(i < inputdatalen && s->state == STATE_STEADY_STATE) {
+      websocket_http_client_datahandler(s, &inputptr[i], inputdatalen - i);
+    }
+  } else {
+    websocket_http_client_datahandler(s, inputptr, inputdatalen);
+  }
+
+  return 0; /* all data consumed */
+}
+/*---------------------------------------------------------------------------*/
+int
+websocket_http_client_register(struct websocket_http_client_state *s,
+                               const char *host,
+                               uint16_t port,
+                               const char *file,
+                               const char *subprotocol,
+                               const char *header)
+{
+  if(host == NULL) {
+    return -1;
+  }
+  strncpy(s->host, host, sizeof(s->host));
+
+  if(file == NULL) {
+    return -1;
+  }
+  strncpy(s->file, file, sizeof(s->file));
+
+  if(subprotocol == NULL) {
+    return -1;
+  }
+  strncpy(s->subprotocol, subprotocol, sizeof(s->subprotocol));
+
+  if(header == NULL) {
+    strncpy(s->header, "", sizeof(s->header));
+  } else {
+    strncpy(s->header, header, sizeof(s->header));
+  }
+
+  if(port == 0) {
+    s->port = 80;
+  } else {
+    s->port = port;
+  }
+  return 1;
+}
+/*---------------------------------------------------------------------------*/
+int
+websocket_http_client_get(struct websocket_http_client_state *s)
+{
+  uip_ip4addr_t ip4addr;
+  uip_ip6addr_t ip6addr;
+  uip_ip6addr_t *addr;
+  uint16_t port;
+
+  PRINTF("websocket_http_client_get: connecting to %s with file %s subprotocol %s header %s\n",
+         s->host, s->file, s->subprotocol, s->header);
+
+
+  s->state = STATE_WAITING_FOR_HEADER;
+
+  if(tcp_socket_register(&s->s, s,
+                         s->inputbuf, sizeof(s->inputbuf),
+                         s->outputbuf, sizeof(s->outputbuf),
+                         input, event) < 0) {
+    return -1;
+  }
+
+  port = s->port;
+  if(s->proxy_port != 0) {
+    /* The proxy address should be an IPv6 address. */
+    uip_ipaddr_copy(&ip6addr, &s->proxy_addr);
+    port = s->proxy_port;
+  } else if(uiplib_ip6addrconv(s->host, &ip6addr) == 0) {
+    /* First check if the host is an IP address. */
+    if(uiplib_ip4addrconv(s->host, &ip4addr) != 0) {
+      ip64_addr_4to6(&ip4addr, &ip6addr);
+    } else {
+      /* Try to lookup the hostname. If it fails, we initiate a hostname
+         lookup. */
+      if(resolv_lookup(s->host, &addr) != RESOLV_STATUS_CACHED) {
+        return -1;
+      }
+      return tcp_socket_connect(&s->s, addr, s->port);
+    }
+  }
+  return tcp_socket_connect(&s->s, &ip6addr, port);
+}
+/*---------------------------------------------------------------------------*/
+int
+websocket_http_client_send(struct websocket_http_client_state *s,
+                           const uint8_t *data,
+                           uint16_t datalen)
+{
+  if(s->state == STATE_STEADY_STATE) {
+    return tcp_socket_send(&s->s, data, datalen);
+  }
+  return -1;
+}
+/*---------------------------------------------------------------------------*/
+int
+websocket_http_client_sendbuflen(struct websocket_http_client_state *s)
+{
+  return tcp_socket_max_sendlen(&s->s);
+}
+/*---------------------------------------------------------------------------*/
+void
+websocket_http_client_close(struct websocket_http_client_state *s)
+{
+  tcp_socket_close(&s->s);
+}
+/*---------------------------------------------------------------------------*/
+const char *
+websocket_http_client_hostname(struct websocket_http_client_state *s)
+{
+  return s->host;
+}
+/*---------------------------------------------------------------------------*/
+void
+websocket_http_client_init(struct websocket_http_client_state *s)
+{
+  uip_create_unspecified(&s->proxy_addr);
+  s->proxy_port = 0;
+}
+/*---------------------------------------------------------------------------*/
+void
+websocket_http_client_set_proxy(struct websocket_http_client_state *s,
+                                const uip_ipaddr_t *addr, uint16_t port)
+{
+  uip_ipaddr_copy(&s->proxy_addr, addr);
+  s->proxy_port = port;
+}
+/*---------------------------------------------------------------------------*/
+int
+websocket_http_client_queuelen(struct websocket_http_client_state *s)
+{
+  return tcp_socket_queuelen(&s->s);
+}
+/*---------------------------------------------------------------------------*/
diff --git a/core/net/ipv6/websocket-http-client.h b/core/net/ipv6/websocket-http-client.h
new file mode 100644
index 000000000..56fc34d0a
--- /dev/null
+++ b/core/net/ipv6/websocket-http-client.h
@@ -0,0 +1,123 @@
+/*
+ * Copyright (c) 2014, Thingsquare, http://www.thingsquare.com/.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the copyright holder nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+#ifndef WEBSOCKET_HTTP_CLIENT_H_
+#define WEBSOCKET_HTTP_CLIENT_H_
+
+#include "contiki.h"
+#include "tcp-socket.h"
+
+#ifdef WEBSOCKET_HTTP_CLIENT_CONF_INPUTBUFSIZE
+#define WEBSOCKET_HTTP_CLIENT_INPUTBUFSIZE WEBSOCKET_HTTP_CLIENT_CONF_INPUTBUFSIZE
+#else /* WEBSOCKET_HTTP_CLIENT_CONF_INPUTBUFSIZE */
+#define WEBSOCKET_HTTP_CLIENT_INPUTBUFSIZE 100
+#endif /* WEBSOCKET_HTTP_CLIENT_CONF_INPUTBUFSIZE */
+
+#ifdef WEBSOCKET_HTTP_CLIENT_CONF_OUTPUTBUFSIZE
+#define WEBSOCKET_HTTP_CLIENT_OUTPUTBUFSIZE WEBSOCKET_HTTP_CLIENT_CONF_OUTPUTBUFSIZE
+#else /* WEBSOCKET_HTTP_CLIENT_CONF_OUTPUTBUFSIZE */
+#define WEBSOCKET_HTTP_CLIENT_OUTPUTBUFSIZE 300
+#endif /* WEBSOCKET_HTTP_CLIENT_CONF_OUTPUTBUFSIZE */
+
+#ifdef WEBSOCKET_HTTP_CLIENT_CONF_MAX_HOSTLEN
+#define WEBSOCKET_HTTP_CLIENT_MAX_HOSTLEN WEBSOCKET_HTTP_CLIENT_CONF_MAX_HOSTLEN
+#else /* WEBSOCKET_HTTP_CLIENT_CONF_MAX_HOSTLEN */
+#define WEBSOCKET_HTTP_CLIENT_MAX_HOSTLEN 32
+#endif /* WEBSOCKET_HTTP_CLIENT_CONF_MAX_HOSTLEN */
+
+#ifdef WEBSOCKET_HTTP_CLIENT_CONF_MAX_FILELEN
+#define WEBSOCKET_HTTP_CLIENT_MAX_FILELEN WEBSOCKET_HTTP_CLIENT_CONF_MAX_FILELEN
+#else /* WEBSOCKET_HTTP_CLIENT_CONF_MAX_FILELEN */
+#define WEBSOCKET_HTTP_CLIENT_MAX_FILELEN 32
+#endif /* WEBSOCKET_HTTP_CLIENT_CONF_MAX_FILELEN */
+
+#ifdef WEBSOCKET_HTTP_CLIENT_CONF_MAX_SUBPROTOCOLLEN
+#define WEBSOCKET_HTTP_CLIENT_MAX_SUBPROTOCOLLEN WEBSOCKET_HTTP_CLIENT_CONF_MAX_SUBPROTOCOLLEN
+#else /* WEBSOCKET_HTTP_CLIENT_CONF_MAX_SUBPROTOCOLLEN */
+#define WEBSOCKET_HTTP_CLIENT_MAX_SUBPROTOCOLLEN 24
+#endif /* WEBSOCKET_HTTP_CLIENT_CONF_MAX_SUBPROTOCOLLEN */
+
+#ifdef WEBSOCKET_HTTP_CLIENT_CONF_MAX_HEADERLEN
+#define WEBSOCKET_HTTP_CLIENT_MAX_HEADERLEN WEBSOCKET_HTTP_CLIENT_CONF_MAX_HEADERLEN
+#else /* WEBSOCKET_HTTP_CLIENT_CONF_MAX_HEADERLEN */
+#define WEBSOCKET_HTTP_CLIENT_MAX_HEADERLEN 128
+#endif /* WEBSOCKET_HTTP_CLIENT_CONF_MAX_HEADERLEN */
+
+struct websocket_http_client_state {
+  struct tcp_socket s;
+  uint8_t inputbuf[WEBSOCKET_HTTP_CLIENT_INPUTBUFSIZE];
+  uint8_t outputbuf[WEBSOCKET_HTTP_CLIENT_OUTPUTBUFSIZE];
+  char host[WEBSOCKET_HTTP_CLIENT_MAX_HOSTLEN];
+  char file[WEBSOCKET_HTTP_CLIENT_MAX_FILELEN];
+  char subprotocol[WEBSOCKET_HTTP_CLIENT_MAX_SUBPROTOCOLLEN];
+  char header[WEBSOCKET_HTTP_CLIENT_MAX_HEADERLEN];
+  uint16_t port;
+
+  int state;
+  struct pt parse_header_pt;
+  int http_status;
+  int i;
+
+  uip_ipaddr_t proxy_addr;
+  uint16_t proxy_port;
+};
+
+void websocket_http_client_init(struct websocket_http_client_state *s);
+void websocket_http_client_set_proxy(struct websocket_http_client_state *s,
+                                     const uip_ipaddr_t *addr, uint16_t port);
+
+int websocket_http_client_register(struct websocket_http_client_state *s,
+                                   const char *host,
+                                   uint16_t port,
+                                   const char *file,
+                                   const char *subprotocol,
+                                   const char *hdr);
+int websocket_http_client_get(struct websocket_http_client_state *s);
+int websocket_http_client_send(struct websocket_http_client_state *s,
+                               const uint8_t *data,
+                               uint16_t datalen);
+int websocket_http_client_sendbuflen(struct websocket_http_client_state *s);
+
+void websocket_http_client_close(struct websocket_http_client_state *s);
+
+const char *websocket_http_client_hostname(struct websocket_http_client_state *s);
+
+int websocket_http_client_queuelen(struct websocket_http_client_state *s);
+
+/* Callback functions that have to be implemented by the application
+   program. */
+void websocket_http_client_datahandler(struct websocket_http_client_state *s,
+				       const uint8_t *data, uint16_t len);
+void websocket_http_client_connected(struct websocket_http_client_state *s);
+void websocket_http_client_timedout(struct websocket_http_client_state *s);
+void websocket_http_client_aborted(struct websocket_http_client_state *s);
+void websocket_http_client_closed(struct websocket_http_client_state *s);
+
+#endif /* WEBSOCKET_HTTP_CLIENT_H_ */