diff --git a/examples/Makefile.am b/examples/Makefile.am
index e5b1f44..2e0a4fa 100644
--- a/examples/Makefile.am
+++ b/examples/Makefile.am
@@ -88,6 +88,7 @@ shrpx_SOURCES = ${HELPER_OBJECTS} ${HELPER_HFILES} \
 	shrpx_ssl.cc shrpx_ssl.h \
 	shrpx_thread_event_receiver.cc shrpx_thread_event_receiver.h \
 	shrpx_worker.cc shrpx_worker.h \
+	shrpx_accesslog.cc shrpx_accesslog.h\
 	http-parser/http_parser.c http-parser/http_parser.h
 endif # HAVE_LIBEVENT_OPENSSL
 
diff --git a/examples/shrpx.cc b/examples/shrpx.cc
index 21084df..0c72b80 100644
--- a/examples/shrpx.cc
+++ b/examples/shrpx.cc
@@ -373,6 +373,7 @@ void print_help(std::ostream& out)
       << "                       Specify write timeout for backend\n"
       << "                       connection. Default: "
       << get_config()->downstream_write_timeout.tv_sec << "\n"
+      << "    --accesslog        Print simple accesslog to stderr.\n"
       << "    -h, --help         Print this help.\n"
       << std::endl;
 }
@@ -405,6 +406,7 @@ int main(int argc, char **argv)
       {"frontend-write-timeout", required_argument, &flag, 4 },
       {"backend-read-timeout", required_argument, &flag, 5 },
       {"backend-write-timeout", required_argument, &flag, 6 },
+      {"accesslog", no_argument, &flag, 7 },
       {"help", no_argument, 0, 'h' },
       {0, 0, 0, 0 }
     };
@@ -492,6 +494,9 @@ int main(int argc, char **argv)
         mod_config()->downstream_write_timeout = tv;
         break;
       }
+      case 7:
+        mod_config()->accesslog = true;
+        break;
       default:
         break;
       }
diff --git a/examples/shrpx_accesslog.cc b/examples/shrpx_accesslog.cc
new file mode 100644
index 0000000..b0186c3
--- /dev/null
+++ b/examples/shrpx_accesslog.cc
@@ -0,0 +1,67 @@
+/*
+ * Spdylay - SPDY Library
+ *
+ * Copyright (c) 2012 Tatsuhiro Tsujikawa
+ *
+ * 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.
+ */
+#include "shrpx_accesslog.h"
+
+#include <ctime>
+#include <cstdio>
+#include <cstring>
+
+namespace shrpx {
+
+namespace {
+void get_datestr(char *buf)
+{
+  time_t now = time(0);
+  if(ctime_r(&now, buf) == 0) {
+    buf[0] = '\0';
+  } else {
+    size_t len = strlen(buf);
+    if(len == 0) {
+      buf[0] = '\0';
+    } else {
+      buf[strlen(buf)-1] = '\0';
+    }
+  }
+}
+} // namespace
+
+void upstream_connect(const std::string& client_ip)
+{
+  char datestr[64];
+  get_datestr(datestr);
+  fprintf(stderr, "[%s] %s\n", datestr, client_ip.c_str());
+  fflush(stderr);
+}
+
+void upstream_spdy_stream(const std::string& client_ip, int32_t stream_id)
+{
+  char datestr[64];
+  get_datestr(datestr);
+  fprintf(stderr, "[%s] %s stream_id=%d\n", datestr, client_ip.c_str(),
+          stream_id);
+  fflush(stderr);
+}
+
+} // namespace shrpx
diff --git a/examples/shrpx_accesslog.h b/examples/shrpx_accesslog.h
new file mode 100644
index 0000000..5f150c3
--- /dev/null
+++ b/examples/shrpx_accesslog.h
@@ -0,0 +1,39 @@
+/*
+ * Spdylay - SPDY Library
+ *
+ * Copyright (c) 2012 Tatsuhiro Tsujikawa
+ *
+ * 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 SHRPX_ACCESSLOG_H
+#define SHRPX_ACCESSLOG_H
+
+#include "shrpx.h"
+
+#include <stdint.h>
+
+namespace shrpx {
+
+void upstream_connect(const std::string& client_ip);
+void upstream_spdy_stream(const std::string& client_ip, int32_t stream_id);
+
+} // namespace shrpx
+
+#endif // SHRPX_LOG_H
diff --git a/examples/shrpx_client_handler.cc b/examples/shrpx_client_handler.cc
index 2205f35..6fe2eea 100644
--- a/examples/shrpx_client_handler.cc
+++ b/examples/shrpx_client_handler.cc
@@ -31,6 +31,7 @@
 #include "shrpx_https_upstream.h"
 #include "shrpx_config.h"
 #include "shrpx_downstream_connection.h"
+#include "shrpx_accesslog.h"
 
 namespace shrpx {
 
@@ -95,6 +96,9 @@ void upstream_eventcb(bufferevent *bev, short events, void *arg)
       if(ENABLE_LOG) {
         LOG(INFO) << "Upstream connected. handler " << handler;
       }
+      if(get_config()->accesslog) {
+        upstream_connect(handler->get_ipaddr());
+      }
       handler->set_bev_cb(upstream_readcb, upstream_writecb, upstream_eventcb);
       handler->validate_next_proto();
       if(ENABLE_LOG) {
diff --git a/examples/shrpx_config.cc b/examples/shrpx_config.cc
index e4e0953..8f6c6dc 100644
--- a/examples/shrpx_config.cc
+++ b/examples/shrpx_config.cc
@@ -42,7 +42,8 @@ Config::Config()
     num_worker(0),
     spdy_max_concurrent_streams(0),
     spdy_proxy(false),
-    add_x_forwarded_for(false)
+    add_x_forwarded_for(false),
+    accesslog(false)
 {}
 
 namespace {
diff --git a/examples/shrpx_config.h b/examples/shrpx_config.h
index 9042ab5..b44ea0c 100644
--- a/examples/shrpx_config.h
+++ b/examples/shrpx_config.h
@@ -68,6 +68,7 @@ struct Config {
   size_t spdy_max_concurrent_streams;
   bool spdy_proxy;
   bool add_x_forwarded_for;
+  bool accesslog;
   Config();
 };
 
diff --git a/examples/shrpx_spdy_upstream.cc b/examples/shrpx_spdy_upstream.cc
index 5ab9be8..7fe4524 100644
--- a/examples/shrpx_spdy_upstream.cc
+++ b/examples/shrpx_spdy_upstream.cc
@@ -33,6 +33,7 @@
 #include "shrpx_downstream_connection.h"
 #include "shrpx_config.h"
 #include "shrpx_http.h"
+#include "shrpx_accesslog.h"
 #include "util.h"
 
 using namespace spdylay;
@@ -211,6 +212,10 @@ void on_ctrl_recv_callback
       upstream->rst_stream(downstream, SPDYLAY_INTERNAL_ERROR);
       return;
     }
+    if(get_config()->accesslog) {
+      upstream_spdy_stream(upstream->get_client_handler()->get_ipaddr(),
+                           frame->syn_stream.stream_id);
+    }
     downstream->set_request_state(Downstream::HEADER_COMPLETE);
     if(frame->syn_stream.hd.flags & SPDYLAY_CTRL_FLAG_FIN) {
       if(ENABLE_LOG) {