[CentOS] OT: iscsi target bind to two addresses?

Does anyone know off hand how to bind iscsi enterprise target to two distinct addresses. Lets say I have a machine that has a bunch of interfaces on it, with different subnets. Rather than have ietd broadcast itself on all interfaces (the default), I would like to limit it to only two interfaces. I have edited the init.d startup script with --address x.x.x.x which works, but I tried using the --address argument twice, and the second time is ignored. I also tried x.x.x.x,y.y.y.y which also failed, second address was ignored.

I'm thinking I could use ip tables to block ietd's ports on the unwanted interfaces but that seems like overkill.

Thanks - Gordon