Hello,
It is not currently configurable, though it's not a bad idea for it to
be. VoldemortServer.java calls either SocketService or
NioSocketService (depending on which type you're using), both of which
currently only allow the port to be passed to it as the second
parameter. Both of those methods call InetSocketAddress(port) to
open the socket. It looks easy enough to add in support for an
optional <bind-ip> field in cluster.xml and update those methods to
support this, having them check if bindIp is not null and calling
InetSocketAddress(bindIp, port) if defined. Let me look into this.
Brendan