diff --git a/axhub-gateway/src/main/java/io/shinhanlife/axhub/biz/mcp/gateway/controller/MciMockController.java b/axhub-gateway/src/main/java/io/shinhanlife/axhub/biz/mcp/gateway/controller/MciMockController.java
new file mode 100644
index 0000000..1f67945
--- /dev/null
+++ b/axhub-gateway/src/main/java/io/shinhanlife/axhub/biz/mcp/gateway/controller/MciMockController.java
@@ -0,0 +1,37 @@
+package io.shinhanlife.axhub.biz.mcp.gateway.controller;
+
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RestController;
+import java.util.Map;
+
+@RestController
+public class MciMockController {
+
+    @PostMapping("/mciSend")
+    public Map<String, Object> mciSend() {
+        return Map.of(
+            "resCode", "0000",
+            "resMsg", "정상 처리되었습니다.",
+            "data", Map.of(
+                "status", "SUCCESS",
+                "mock", true,
+                "protocol", "HTTP/2 (h2c)",
+                "detail", "가짜 응답 서버(HTTP/2 WebFlux)에서 내려주는 대내(MCI) 샘플 데이터입니다."
+            )
+        );
+    }
+
+    @PostMapping("/extmci")
+    public Map<String, Object> extmci() {
+        return Map.of(
+            "resCode", "0000",
+            "resMsg", "정상 처리되었습니다.",
+            "data", Map.of(
+                "status", "SUCCESS",
+                "mock", true,
+                "protocol", "HTTP/2 (h2c)",
+                "detail", "가짜 응답 서버(HTTP/2 WebFlux)에서 내려주는 대외(EXTMCI) 샘플 데이터입니다."
+            )
+        );
+    }
+}
diff --git a/axhub-gateway/src/main/resources/application.properties b/axhub-gateway/src/main/resources/application.properties
index f03eb7c..64a97a5 100644
--- a/axhub-gateway/src/main/resources/application.properties
+++ b/axhub-gateway/src/main/resources/application.properties
@@ -1,5 +1,6 @@
 spring.application.name=axhub-admin
 server.port=8081
+server.http2.enabled=true
 
 # 기본적으로 local 환경을 실행
 spring.profiles.active=local
diff --git a/axhub-tool-core/src/main/java/io/shinhanlife/axhub/biz/mcp/adapter/sender/HttpEimsSender.java b/axhub-tool-core/src/main/java/io/shinhanlife/axhub/biz/mcp/adapter/sender/HttpEimsSender.java
index 17dcbb9..7f83825 100644
--- a/axhub-tool-core/src/main/java/io/shinhanlife/axhub/biz/mcp/adapter/sender/HttpEimsSender.java
+++ b/axhub-tool-core/src/main/java/io/shinhanlife/axhub/biz/mcp/adapter/sender/HttpEimsSender.java
@@ -10,7 +10,6 @@ import java.util.Map;
 import java.util.UUID;
 
 import org.slf4j.MDC;
-import org.springframework.http.client.SimpleClientHttpRequestFactory;
 
 import io.shinhanlife.axhub.biz.mcp.tool.config.GlowCommunicationProperties;
 
@@ -26,10 +25,7 @@ public class HttpEimsSender implements EimsSender {
         this.glowProps = glowProps;
         // yml의 대내 MCI host, port, uri를 조합하여 EIMS 호출 주소 생성
         this.eimsUrl = glowProps.getMci().getHost() + ":" + glowProps.getMci().getPort() + glowProps.getMci().getUri();
-        SimpleClientHttpRequestFactory factory = new SimpleClientHttpRequestFactory();
-        factory.setConnectTimeout(glowProps.getMci().getConnectionTimeout() * 1000);
-        factory.setReadTimeout(glowProps.getMci().getReadTimeout() * 1000);
-        this.restClient = RestClient.builder().requestFactory(factory).build();
+        this.restClient = RestClient.builder().build();
     }
 
     @Override
diff --git a/docker-compose.yml b/docker-compose.yml
index 9fda885..71c73a9 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -40,10 +40,12 @@ services:
       - SPRING_DATA_REDIS_PORT=6379
       - AXHUB_GATEWAY_URL=http://gateway:8081
       - AXHUB_TOOL_URL=http://tool-sms:8082
-      - GLOW_COMMUNICATION_MCI_HOST=http://mci-mock
-      - GLOW_COMMUNICATION_EXTMCI_HOST=http://mci-mock
-      - GLOW_COMMUNICATION_EAI_HOST=tcp://mci-mock
-
+      - GLOW_COMMUNICATION_MCI_HOST=http://gateway
+      - GLOW_COMMUNICATION_MCI_PORT=8081
+      - GLOW_COMMUNICATION_EXTMCI_HOST=http://gateway
+      - GLOW_COMMUNICATION_EXTMCI_PORT=8081
+      - GLOW_COMMUNICATION_EAI_HOST=tcp://gateway
+      - GLOW_COMMUNICATION_EAI_PORT=8081
   tool-email:
     build: 
       context: ./axhub-tool-email
@@ -58,10 +60,12 @@ services:
       - SPRING_DATA_REDIS_PORT=6379
       - AXHUB_GATEWAY_URL=http://gateway:8081
       - AXHUB_TOOL_URL=http://tool-email:8083
-      - GLOW_COMMUNICATION_MCI_HOST=http://mci-mock
-      - GLOW_COMMUNICATION_EXTMCI_HOST=http://mci-mock
-      - GLOW_COMMUNICATION_EAI_HOST=tcp://mci-mock
-
+      - GLOW_COMMUNICATION_MCI_HOST=http://gateway
+      - GLOW_COMMUNICATION_MCI_PORT=8081
+      - GLOW_COMMUNICATION_EXTMCI_HOST=http://gateway
+      - GLOW_COMMUNICATION_EXTMCI_PORT=8081
+      - GLOW_COMMUNICATION_EAI_HOST=tcp://gateway
+      - GLOW_COMMUNICATION_EAI_PORT=8081
   tool-other:
     build: 
       context: ./axhub-tool-other
@@ -76,14 +80,9 @@ services:
       - SPRING_DATA_REDIS_PORT=6379
       - AXHUB_GATEWAY_URL=http://gateway:8081
       - AXHUB_TOOL_URL=http://tool-other:8084
-      - GLOW_COMMUNICATION_MCI_HOST=http://mci-mock
-      - GLOW_COMMUNICATION_EXTMCI_HOST=http://mci-mock
-      - GLOW_COMMUNICATION_EAI_HOST=tcp://mci-mock
-
-  mci-mock:
-    image: wiremock/wiremock:latest
-    ports:
-      - "8080:8080"
-    volumes:
-      - ./mci-mock/mappings:/home/wiremock/mappings
-    command: ["--port", "8080", "--verbose"]
+      - GLOW_COMMUNICATION_MCI_HOST=http://gateway
+      - GLOW_COMMUNICATION_MCI_PORT=8081
+      - GLOW_COMMUNICATION_EXTMCI_HOST=http://gateway
+      - GLOW_COMMUNICATION_EXTMCI_PORT=8081
+      - GLOW_COMMUNICATION_EAI_HOST=tcp://gateway
+      - GLOW_COMMUNICATION_EAI_PORT=8081