diff --git a/.gitignore b/.gitignore
index 567609b..e660fd9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1 @@
-build/
+bin/
diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..137d9c6
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "lcp"]
+	path = lcp
+	url = https://github.com/datachainlab/lcp
diff --git a/Makefile b/Makefile
index c104233..ee66923 100644
--- a/Makefile
+++ b/Makefile
@@ -2,6 +2,14 @@ protoVer=0.13.1
 protoImageName=ghcr.io/cosmos/proto-builder:$(protoVer)
 protoImage=docker run --user 0 --rm -v $(CURDIR):/workspace --workdir /workspace $(protoImageName)
 
+.PHONY: yrly
+yrly:
+	go build -o ./bin/yrly -tags customcert ./relay/bin
+
+.PHONY: lcp
+lcp:
+	$(MAKE) -C ./lcp -B && mv ./lcp/bin/* ./bin/
+
 .PHONY: proto-gen proto-update-deps
 proto-gen:
 	@echo "Generating Protobuf files"
diff --git a/README.md b/README.md
index 645fae1..a8c820e 100644
--- a/README.md
+++ b/README.md
@@ -7,4 +7,4 @@ lcp-go includes the followings:
 ## Compatibility
 
 - [lcp v0.2.2](https://github.com/datachainlab/lcp/releases/tag/v0.2.2)
-- [ibc v7.2](https://github.com/cosmos/ibc-go/releases/tag/v7.2.0).
+- [ibc-go v7.2](https://github.com/cosmos/ibc-go/releases/tag/v7.2.0).
diff --git a/lcp b/lcp
new file mode 160000
index 0000000..c073f89
--- /dev/null
+++ b/lcp
@@ -0,0 +1 @@
+Subproject commit c073f89517fcdc4f796c07ad420b0029bbc148db
diff --git a/scripts/run_e2e_test.sh b/scripts/run_e2e_test.sh
new file mode 100755
index 0000000..b7d5cc2
--- /dev/null
+++ b/scripts/run_e2e_test.sh
@@ -0,0 +1,27 @@
+#!/bin/sh
+set -ex
+
+LCP_BIN=./bin/lcp
+ENCLAVE_PATH=./bin/enclave.signed.so
+CERTS_DIR=./lcp/tests/certs
+
+rm -rf ~/.lcp
+
+enclave_key=$(${LCP_BIN} --log_level=off enclave generate-key --enclave=${ENCLAVE_PATH})
+./tests/e2e/scripts/gen_rly_config.sh
+
+if [ -z "$SGX_MODE" -o "$SGX_MODE" = "HW" ]; then
+    ./bin/lcp attestation ias --enclave=${ENCLAVE_PATH} --enclave_key=${enclave_key}
+else
+    ./bin/lcp attestation simulate --enclave=${ENCLAVE_PATH} --enclave_key=${enclave_key} --signing_cert_path=${CERTS_DIR}/signing.crt.der --signing_key=${CERTS_DIR}/signing.key
+    export LCP_RA_ROOT_CERT_HEX=$(cat ${CERTS_DIR}/root.crt | xxd -p -c 1000000)
+fi
+
+./bin/lcp --log_level=info service start --enclave=${ENCLAVE_PATH} --address=127.0.0.1:50051 --threads=2 &
+LCP_PID=$!
+
+make -C tests/e2e/cases/tm2tm network
+sleep 3
+make -C tests/e2e/cases/tm2tm test
+make -C tests/e2e/cases/tm2tm network-down
+kill $LCP_PID
diff --git a/tests/e2e/cases/docker-compose-test.yaml b/tests/e2e/cases/docker-compose-test.yaml
new file mode 100644
index 0000000..b442d96
--- /dev/null
+++ b/tests/e2e/cases/docker-compose-test.yaml
@@ -0,0 +1,41 @@
+version: '3.5'
+
+networks:
+  relayer-e2e:
+    name: &network-common relayer-e2e
+
+services:
+  tendermint-chain0:
+    container_name: tendermint-chain0
+    image: tendermint-chain0:${TAG}
+    environment:
+      - LCP_RA_ROOT_CERT_HEX=${LCP_RA_ROOT_CERT_HEX}
+    ports:
+      - 26656:26656
+      - 26657:26657
+      - 6060:6060
+      - 9090:9090
+    healthcheck:
+      test: "wget -q -O - http://localhost:26657/health || exit 1"
+      interval: 30s
+      timeout: 10s
+      retries: 5
+    networks:
+      - *network-common
+  tendermint-chain1:
+    container_name: tendermint-chain1
+    image: tendermint-chain1:${TAG}
+    environment:
+      - LCP_RA_ROOT_CERT_HEX=${LCP_RA_ROOT_CERT_HEX}
+    ports:
+      - 26566:26656
+      - 26557:26657
+      - 6061:6060
+      - 9091:9090
+    healthcheck:
+      test: "wget -q -O - http://localhost:26657/health || exit 1"
+      interval: 30s
+      timeout: 10s
+      retries: 5
+    networks:
+      - *network-common
diff --git a/tests/e2e/cases/tm2tm/.gitignore b/tests/e2e/cases/tm2tm/.gitignore
new file mode 100644
index 0000000..67fc140
--- /dev/null
+++ b/tests/e2e/cases/tm2tm/.gitignore
@@ -0,0 +1 @@
+fixtures/
diff --git a/tests/e2e/cases/tm2tm/Makefile b/tests/e2e/cases/tm2tm/Makefile
new file mode 100644
index 0000000..c50a2da
--- /dev/null
+++ b/tests/e2e/cases/tm2tm/Makefile
@@ -0,0 +1,27 @@
+DOCKER         ?= docker
+DOCKER_COMPOSE ?= docker compose
+DOCKER_REPO    ?= ""
+DOCKER_TAG     ?= latest
+DOCKER_BUILD   ?= $(DOCKER) build --rm --no-cache --pull
+
+RLY_BIN ?= ../../../../bin/yrly
+
+.PHONY: network
+network:
+	TAG=${DOCKER_TAG} $(DOCKER_COMPOSE) \
+		-f ../docker-compose-test.yaml \
+		up -d \
+		tendermint-chain0 tendermint-chain1
+
+.PHONY: network-down
+network-down:
+	TAG=${DOCKER_TAG} $(DOCKER_COMPOSE) \
+		-f ../docker-compose-test.yaml \
+		down --volumes --remove-orphans
+
+.PHONY: test
+test:
+	./scripts/fixture
+	RLY_BIN=$(RLY_BIN) ./scripts/init-rly
+	RLY_BIN=$(RLY_BIN) ./scripts/handshake
+	RLY_BIN=$(RLY_BIN) ./scripts/test-tx
diff --git a/tests/e2e/cases/tm2tm/README.md b/tests/e2e/cases/tm2tm/README.md
new file mode 100644
index 0000000..7142d2e
--- /dev/null
+++ b/tests/e2e/cases/tm2tm/README.md
@@ -0,0 +1,7 @@
+## Usage
+
+```shell
+$ make network
+$ make test
+$ make network-down
+```
diff --git a/tests/e2e/cases/tm2tm/configs/.gitignore b/tests/e2e/cases/tm2tm/configs/.gitignore
new file mode 100644
index 0000000..40e41d2
--- /dev/null
+++ b/tests/e2e/cases/tm2tm/configs/.gitignore
@@ -0,0 +1 @@
+demo/*.json
diff --git a/tests/e2e/cases/tm2tm/configs/README.md b/tests/e2e/cases/tm2tm/configs/README.md
new file mode 100644
index 0000000..76890df
--- /dev/null
+++ b/tests/e2e/cases/tm2tm/configs/README.md
@@ -0,0 +1,4 @@
+# Demo configs
+
+**WARNING** These configurations are intended only for testing and development. 
+You must modify them for your environment and security level in production.
diff --git a/tests/e2e/cases/tm2tm/configs/path.json b/tests/e2e/cases/tm2tm/configs/path.json
new file mode 100644
index 0000000..f8e0b89
--- /dev/null
+++ b/tests/e2e/cases/tm2tm/configs/path.json
@@ -0,0 +1,23 @@
+{
+  "src": {
+    "chain-id": "ibc0",
+    "client-id": "lcp-client-0",
+    "connection-id": "connection-0",
+    "channel-id": "channel-0",
+    "port-id": "transfer",
+    "order": "unordered",
+    "version": "ics20-1"
+  },
+  "dst": {
+    "chain-id": "ibc1",
+    "client-id": "lcp-client-0",
+    "connection-id": "connection-0",
+    "channel-id": "channel-0",
+    "port-id": "transfer",
+    "order": "unordered",
+    "version": "ics20-1"
+  },
+  "strategy": {
+    "type": "naive"
+  }
+}
diff --git a/tests/e2e/cases/tm2tm/configs/templates/ibc-0.json.tpl b/tests/e2e/cases/tm2tm/configs/templates/ibc-0.json.tpl
new file mode 100644
index 0000000..60f433a
--- /dev/null
+++ b/tests/e2e/cases/tm2tm/configs/templates/ibc-0.json.tpl
@@ -0,0 +1,24 @@
+{
+  "chain": {
+    "@type": "/relayer.chains.tendermint.config.ChainConfig",
+    "key": "testkey",
+    "chain_id": "ibc0",
+    "rpc_addr": "http://localhost:26657",
+    "account_prefix": "cosmos",
+    "gas_adjustment": 1.5,
+    "gas_prices": "0.025stake"
+  },
+  "prover": {
+    "@type": "/relayer.provers.lcp.config.ProverConfig",
+    "origin_prover": {
+      "@type": "/relayer.chains.tendermint.config.ProverConfig",
+      "trusting_period": "336h"
+    },
+    "lcp_service_address": "localhost:50051",
+    "mrenclave": "$MRENCLAVE",
+    "allowed_quote_statuses": ["GROUP_OUT_OF_DATE"],
+    "allowed_advisory_ids": ["INTEL-SA-00219","INTEL-SA-00289","INTEL-SA-00334","INTEL-SA-00477","INTEL-SA-00614","INTEL-SA-00615","INTEL-SA-00617"],
+    "key_expiration": 604800,
+    "elc_client_id": "07-tendermint-1"
+  }
+}
diff --git a/tests/e2e/cases/tm2tm/configs/templates/ibc-1.json.tpl b/tests/e2e/cases/tm2tm/configs/templates/ibc-1.json.tpl
new file mode 100644
index 0000000..04e630e
--- /dev/null
+++ b/tests/e2e/cases/tm2tm/configs/templates/ibc-1.json.tpl
@@ -0,0 +1,24 @@
+{
+  "chain": {
+    "@type": "/relayer.chains.tendermint.config.ChainConfig",
+    "key": "testkey",
+    "chain_id": "ibc1",
+    "rpc_addr": "http://localhost:26557",
+    "account_prefix": "cosmos",
+    "gas_adjustment": 1.5,
+    "gas_prices": "0.025stake"
+  },
+  "prover": {
+    "@type": "/relayer.provers.lcp.config.ProverConfig",
+    "origin_prover": {
+      "@type": "/relayer.chains.tendermint.config.ProverConfig",
+      "trusting_period": "336h"
+    },
+    "lcp_service_address": "localhost:50051",
+    "mrenclave": "$MRENCLAVE",
+    "allowed_quote_statuses": ["GROUP_OUT_OF_DATE"],
+    "allowed_advisory_ids": ["INTEL-SA-00219","INTEL-SA-00289","INTEL-SA-00334","INTEL-SA-00477","INTEL-SA-00614","INTEL-SA-00615","INTEL-SA-00617"],
+    "key_expiration": 604800,
+    "elc_client_id": "07-tendermint-0"
+  }
+}
diff --git a/tests/e2e/cases/tm2tm/scripts/fixture b/tests/e2e/cases/tm2tm/scripts/fixture
new file mode 100755
index 0000000..027823a
--- /dev/null
+++ b/tests/e2e/cases/tm2tm/scripts/fixture
@@ -0,0 +1,18 @@
+#!/bin/bash
+set -eu
+
+DOCKER=docker
+SCRIPT_DIR=$(cd $(dirname $0); pwd)
+FIXTURES_DIR=${SCRIPT_DIR}/../fixtures
+
+## Setup test fixtures
+
+set +x
+rm -rf ${FIXTURES_DIR}
+mkdir -p ${FIXTURES_DIR}/tendermint/ibc0
+mkdir -p ${FIXTURES_DIR}/tendermint/ibc1
+set -x
+
+## copy tendermint's node mnemonic from node container
+${DOCKER} cp tendermint-chain0:/root/data/ibc0/key_seed.json  ${FIXTURES_DIR}/tendermint/ibc0/key_seed.json
+${DOCKER} cp tendermint-chain1:/root/data/ibc1/key_seed.json  ${FIXTURES_DIR}/tendermint/ibc1/key_seed.json
diff --git a/tests/e2e/cases/tm2tm/scripts/handshake b/tests/e2e/cases/tm2tm/scripts/handshake
new file mode 100755
index 0000000..3e5545a
--- /dev/null
+++ b/tests/e2e/cases/tm2tm/scripts/handshake
@@ -0,0 +1,49 @@
+#!/bin/bash
+
+set -eux
+
+retry() {
+    local -r -i max_attempts="$1"; shift
+    local -r cmd="$@"
+    local -i attempt_num=1
+
+    until $cmd
+    do
+        if (( attempt_num == max_attempts ))
+        then
+            echo "Attempt $attempt_num failed and there are no more attempts left!"
+            return 1
+        else
+            echo "Attempt $attempt_num failed! Trying again in $attempt_num seconds..."
+            sleep $(( attempt_num++ ))
+        fi
+    done
+}
+
+RLY="${RLY_BIN} --debug"
+
+CHAINID_ONE=ibc0
+RLYKEY=testkey
+CHAINID_TWO=ibc1
+PATH_NAME=ibc01
+
+$RLY tendermint keys show $CHAINID_ONE $RLYKEY
+$RLY tendermint keys show $CHAINID_TWO $RLYKEY
+
+# initialize the light client for {{chain_id}}
+retry 5 $RLY lcp-tendermint light init $CHAINID_ONE -f
+retry 5 $RLY lcp-tendermint light init $CHAINID_TWO -f
+
+# add a path between chain0 and chain1
+$RLY paths add $CHAINID_ONE $CHAINID_TWO $PATH_NAME --file=./configs/path.json
+
+retry 5 $RLY tx clients $PATH_NAME
+sleep 3
+retry 5 $RLY lcp update-enclave-key $PATH_NAME --src=true
+retry 5 $RLY lcp update-enclave-key $PATH_NAME --src=false
+sleep 3
+retry 5 $RLY lcp activate-client $PATH_NAME --src=true
+retry 5 $RLY lcp activate-client $PATH_NAME --src=false
+sleep 3
+retry 5 $RLY tx connection $PATH_NAME
+retry 5 $RLY tx channel $PATH_NAME
diff --git a/tests/e2e/cases/tm2tm/scripts/init-rly b/tests/e2e/cases/tm2tm/scripts/init-rly
new file mode 100755
index 0000000..cf04c5f
--- /dev/null
+++ b/tests/e2e/cases/tm2tm/scripts/init-rly
@@ -0,0 +1,29 @@
+#!/bin/bash
+
+set -eux
+
+SCRIPT_DIR=$(cd $(dirname $0); pwd)
+
+RLY_HOME="$HOME/.yui-relayer"
+RLY="${RLY_BIN} --debug"
+FIXTURES_DIR=${SCRIPT_DIR}/../fixtures
+
+echo "Generating ${RLY_BIN} configurations..."
+
+# Ensure ${RLY_BIN} is installed
+if ! [ -x ${RLY_BIN} ]; then
+  echo "Error: ${RLY_BIN} is not installed." >&2
+  exit 1
+fi
+
+rm -rf ${RLY_HOME} &> /dev/null
+
+${RLY} config init
+${RLY} chains add-dir configs/demo/
+
+# setup key for tendermint client
+SEED0=$(jq -r '.mnemonic' < ${FIXTURES_DIR}/tendermint/ibc0/key_seed.json)
+echo "Key $(${RLY} tendermint keys restore ibc0 testkey "$SEED0") imported from ibc0 to relayer..."
+
+SEED1=$(jq -r '.mnemonic' < ${FIXTURES_DIR}/tendermint/ibc1/key_seed.json)
+echo "Key $(${RLY} tendermint keys restore ibc1 testkey "$SEED1") imported from ibc1 to relayer..."
diff --git a/tests/e2e/cases/tm2tm/scripts/test-tx b/tests/e2e/cases/tm2tm/scripts/test-tx
new file mode 100755
index 0000000..486fce9
--- /dev/null
+++ b/tests/e2e/cases/tm2tm/scripts/test-tx
@@ -0,0 +1,26 @@
+#!/bin/bash
+
+set -eux
+
+RLY="${RLY_BIN} --debug"
+
+# XXX set proper value
+TX_INTERNAL=3
+
+TM_ADDRESS0=$(${RLY} tendermint keys show ibc0 testkey)
+TM_ADDRESS1=$(${RLY} tendermint keys show ibc1 testkey)
+
+echo "!!! ibc0 -> ibc1 !!!"
+
+echo "Before ibc0 balance: $(${RLY} query balance ibc0 ${TM_ADDRESS0})"
+echo "Before ibc1 balance: $(${RLY} query balance ibc1 ${TM_ADDRESS1})"
+
+${RLY} tx transfer ibc01 ibc0 ibc1 100samoleans ${TM_ADDRESS1}
+sleep ${TX_INTERNAL}
+${RLY} tx relay ibc01
+sleep ${TX_INTERNAL}
+${RLY} tx acks ibc01
+sleep ${TX_INTERNAL}
+
+echo "After ibc0 balance: $(${RLY} query balance ibc0 ${TM_ADDRESS0})"
+echo "After ibc1 balance: $(${RLY} query balance ibc1 ${TM_ADDRESS1})"
diff --git a/tests/e2e/scripts/gen_rly_config.sh b/tests/e2e/scripts/gen_rly_config.sh
new file mode 100755
index 0000000..c723851
--- /dev/null
+++ b/tests/e2e/scripts/gen_rly_config.sh
@@ -0,0 +1,8 @@
+#!/bin/sh
+set -eux
+TEMPLATE_DIR=./tests/e2e/cases/tm2tm/configs/templates
+CONFIG_DIR=./tests/e2e/cases/tm2tm/configs/demo
+mkdir -p $CONFIG_DIR
+MRENCLAVE=$(./bin/lcp enclave metadata --enclave=./bin/enclave.signed.so | jq -r .mrenclave)
+jq --arg MRENCLAVE ${MRENCLAVE} -r '.prover.mrenclave = $MRENCLAVE' ${TEMPLATE_DIR}/ibc-0.json.tpl > ${CONFIG_DIR}/ibc-0.json
+jq --arg MRENCLAVE ${MRENCLAVE} -r '.prover.mrenclave = $MRENCLAVE' ${TEMPLATE_DIR}/ibc-1.json.tpl > ${CONFIG_DIR}/ibc-1.json
diff --git a/tests/e2e/scripts/load_docker_images b/tests/e2e/scripts/load_docker_images
new file mode 100755
index 0000000..81df440
--- /dev/null
+++ b/tests/e2e/scripts/load_docker_images
@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+
+set -eox pipefail
+
+source $(cd $(dirname "$0"); pwd)/util
+
+LOAD_DIR=$1
+if [ ! -d $LOAD_DIR ];then
+  echo "Directory not exists."
+  exit 1
+fi
+
+shift
+
+for image in "$@"; do
+  key=$(createDockerImageCacheKey $image)
+  docker load -i "${LOAD_DIR}/${key}"
+done
diff --git a/tests/e2e/scripts/save_docker_images b/tests/e2e/scripts/save_docker_images
new file mode 100755
index 0000000..579660f
--- /dev/null
+++ b/tests/e2e/scripts/save_docker_images
@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+
+set -eox pipefail
+
+source $(cd $(dirname "$0"); pwd)/util
+
+echo $@
+
+SAVE_DIR=$1
+if [ ! -d $SAVE_DIR ];then
+  echo "Directory not exists."
+  mkdir -p $SAVE_DIR
+fi
+
+shift
+
+for image in "$@"; do
+  key=$(createDockerImageCacheKey $image)
+  docker save -o "${SAVE_DIR}/${key}" $image
+done
diff --git a/tests/e2e/scripts/util b/tests/e2e/scripts/util
new file mode 100755
index 0000000..da5df2e
--- /dev/null
+++ b/tests/e2e/scripts/util
@@ -0,0 +1,25 @@
+#!/usr/bin/env bash
+
+createDockerImageCacheKey() {
+  IMAGE=$1
+  ret=${IMAGE//\//_}
+  echo $ret
+}
+
+retry() {
+    local -r -i max_attempts="$1"; shift
+    local -r cmd="$@"
+    local -i attempt_num=1
+
+    until $cmd
+    do
+        if (( attempt_num == max_attempts ))
+        then
+            echo "Attempt $attempt_num failed and there are no more attempts left!"
+            return 1
+        else
+            echo "Attempt $attempt_num failed! Trying again in $attempt_num seconds..."
+            sleep $(( attempt_num++ ))
+        fi
+    done
+}
diff --git a/tests/e2e/scripts/wait-for-launch b/tests/e2e/scripts/wait-for-launch
new file mode 100755
index 0000000..749aae4
--- /dev/null
+++ b/tests/e2e/scripts/wait-for-launch
@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+
+source $(cd $(dirname "$0"); pwd)/util
+
+MAX_ATTEMPTS=$1
+CONTAINER=$2
+
+attempt_num=1
+retry_interval=1
+
+until [[ $(docker inspect --format='{{.State.Health.Status}}' $CONTAINER) == 'healthy' ]]
+do
+    if (( attempt_num == MAX_ATTEMPTS )); then
+        echo "Attempt $attempt_num failed and there are no more attempts left!"
+        exit 1
+    else
+        echo "Attempt $attempt_num failed! Trying again in $retry_interval seconds..."
+        sleep $retry_interval
+        attempt_num=$(( $attempt_num+1 ))
+    fi
+done