diff --git a/script/service/tfe-env.service b/script/service/tfe-env.service
index 2c1ea23..1182368 100644
--- a/script/service/tfe-env.service
+++ b/script/service/tfe-env.service
@@ -33,7 +33,7 @@ ExecStartPost=/usr/sbin/ip addr add fd00::02/64 dev ${TFE_DEVICE_DATA_INCOMING}
 ExecStartPost=/usr/sbin/ip -6 rule add iif ${TFE_DEVICE_DATA_INCOMING} tab 102
 ExecStartPost=/usr/sbin/ip -6 route add local default dev lo table 102
 ExecStartPost=/usr/sbin/ip -6 rule add fwmark 0x65 lookup 202
-ExecStartPost=/usr/sbin/ip -6 route add default dev tap0 via fd00::01 table 202
+ExecStartPost=/usr/sbin/ip -6 route add default dev ${TFE_DEVICE_DATA_INCOMING} via fd00::01 table 202
 ExecStartPost=/usr/sbin/ip -6 neigh add fd00::01 lladdr ${TFE_PEER_MAC_DATA_INCOMING} dev ${TFE_DEVICE_DATA_INCOMING} nud permanent
 
 # stop
@@ -44,7 +44,7 @@ ExecStopPost=/usr/sbin/ip route del local default dev lo table 100
 ExecStopPost=/usr/sbin/ip rule del fwmark 0x65 lookup 101
 ExecStopPost=/usr/sbin/ip route del default dev ${TFE_DEVICE_DATA_INCOMING} via ${TFE_PEER_IP_DATA_INCOMING} table 101
 ExecStopPost=/usr/sbin/ip -6 rule del fwmark 0x65 lookup 202
-ExecStopPost=/usr/sbin/ip -6 route del default dev tap0 via fd00::01 table 202
+ExecStopPost=/usr/sbin/ip -6 route del default dev ${TFE_DEVICE_DATA_INCOMING} via fd00::01 table 202
 ExecStopPost=/usr/sbin/ip -6 rule del iif ${TFE_DEVICE_DATA_INCOMING} tab 102
 ExecStopPost=/usr/sbin/ip -6 route del local default dev lo table 102
 ExecStopPost=/usr/sbin/ip addr del fd00::02/64 dev ${TFE_DEVICE_DATA_INCOMING}