export SERVING_GW_ADDR=47.104.153.103
export TEMP_SGW_PDP_ADDR=47.104.153.103
export SERVING_GW_ADDR=47.104.153.103
export TEMP_SGW_PDP_ADDR=47.104.153.163
In the bove example 47.104.153.103 may not be same always for the variable TEMP_SGW_PDP_ADDR. But the output should be same.