diff --git a/quic/qbone/qbone_constants.cc b/quic/qbone/qbone_constants.cc
new file mode 100644
index 0000000..a83f74e
--- /dev/null
+++ b/quic/qbone/qbone_constants.cc
@@ -0,0 +1,36 @@
+// Copyright (c) 2019 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "net/third_party/quiche/src/quic/qbone/qbone_constants.h"
+
+#include "net/third_party/quiche/src/quic/core/quic_utils.h"
+
+namespace quic {
+
+constexpr char QboneConstants::kQboneAlpn[];
+const QuicByteCount QboneConstants::kMaxQbonePacketBytes;
+const uint32_t QboneConstants::kQboneRouteTableId;
+
+QuicStreamId QboneConstants::GetControlStreamId(QuicTransportVersion version) {
+  return QuicUtils::GetFirstBidirectionalStreamId(version,
+                                                  Perspective::IS_CLIENT);
+}
+
+const QuicIpAddress* QboneConstants::TerminatorLocalAddress() {
+  static auto* terminator_address = []() {
+    QuicIpAddress* address = new QuicIpAddress;
+    // 0x71 0x62 0x6f 0x6e 0x65 is 'qbone' in ascii.
+    address->FromString("fe80::71:626f:6e65");
+    return address;
+  }();
+  return terminator_address;
+}
+
+const IpRange* QboneConstants::TerminatorLocalAddressRange() {
+  static auto* range =
+      new quic::IpRange(*quic::QboneConstants::TerminatorLocalAddress(), 128);
+  return range;
+}
+
+}  // namespace quic