Spark node: use 127.0.0.1 for connection to Cassandra

[Vlad]

Hi All,
I have Cassandra with Spark on node 10.0.0.1

On other server I run 
./spark-shell --master spark://10.0.0.1:7077and then set 
val conf = new SparkConf(true).set("spark.cassandra.connection.host", 
"10.0.0.1")
It works, but I see in tcpdump that Spark node connects to Cassandra with 
address 10.0.0.1How can I cause node to use 127.0.0.1 (Cassandra listens on 
0.0.0.0:9042) ?

Thanks.