be careful modifying local_listener to only IPC! the SCAN-listeners redirect the client to the local_listener value it gets from PMON (currently I do _not_ know if SCAN listener filters out IPC). So if there is no useable network-connection mentioned in local_listener, I'd expect bad results. (this is all untested, but I'm sure we all will have the chance to test it, sooner or later) Martin On Fri, May 4, 2012 at 9:47 PM, Allen, Brandon <Brandon.Allen@xxxxxxxxxxx> wrote: > I think you might be able to modify your local_listener parameter in each > database to avoid this, but I haven't tested that. -- //www.freelists.org/webpage/oracle-l