diff --git a/test/integration/tcp_tunneling_integration_test.cc b/test/integration/tcp_tunneling_integration_test.cc
index 00efaba709a69..efc7222c90cb8 100644
--- a/test/integration/tcp_tunneling_integration_test.cc
+++ b/test/integration/tcp_tunneling_integration_test.cc
@@ -272,6 +272,41 @@ TEST_P(ProxyingConnectIntegrationTest, ProxyConnect) {
   cleanupUpstreamAndDownstream();
 }
 
+TEST_P(ProxyingConnectIntegrationTest, ProxyConnectWithIP) {
+  initialize();
+
+  // Send request headers.
+  codec_client_ = makeHttpConnection(lookupPort("http"));
+  connect_headers_.setHost("1.2.3.4:80");
+  auto encoder_decoder = codec_client_->startRequest(connect_headers_);
+  request_encoder_ = &encoder_decoder.first;
+  response_ = std::move(encoder_decoder.second);
+
+  // Wait for them to arrive upstream.
+  AssertionResult result =
+      fake_upstreams_[0]->waitForHttpConnection(*dispatcher_, fake_upstream_connection_);
+  RELEASE_ASSERT(result, result.message());
+  result = fake_upstream_connection_->waitForNewStream(*dispatcher_, upstream_request_);
+  RELEASE_ASSERT(result, result.message());
+  ASSERT_TRUE(upstream_request_->waitForHeadersComplete());
+  EXPECT_EQ(upstream_request_->headers().get(Http::Headers::get().Method)[0]->value(), "CONNECT");
+  if (upstreamProtocol() == FakeHttpConnection::Type::HTTP1) {
+    EXPECT_TRUE(upstream_request_->headers().get(Http::Headers::get().Protocol).empty());
+  } else {
+    EXPECT_EQ(upstream_request_->headers().get(Http::Headers::get().Protocol)[0]->value(),
+              "bytestream");
+  }
+
+  // Send response headers
+  upstream_request_->encodeHeaders(default_response_headers_, false);
+
+  // Wait for them to arrive downstream.
+  response_->waitForHeaders();
+  EXPECT_EQ("200", response_->headers().getStatusValue());
+
+  cleanupUpstreamAndDownstream();
+}
+
 INSTANTIATE_TEST_SUITE_P(IpVersions, ConnectTerminationIntegrationTest,
                          testing::ValuesIn(TestEnvironment::getIpVersionsForTest()),
                          TestUtility::ipTestParamsToString);