Have you accidentally set one of the interfaces to get its address via DHCP? Thanks, Phil On 24 Jan 2013, at 10:01, Lu Jiang <lu.jiang69@xxxxxxxxx> wrote: > Thanks Nial. > > I Had tried this note with the solution 3, did not fix the problem. > > The following is the contents of ons.log file. In this log file, I don't know > where 10.1.182.167 came from. This IP address is not in the hosts file and > not in the SCAN IP list in DNS either. > [root@rhelsandbox logs]# cat ons.log.rhelsandbox > [2013-01-23T17:02:30-05:00] [ons] [NOTIFICATION:1] [104] [ons-internal] ONS > server initiated > [2013-01-23T17:02:30-05:00] [ons] [ERROR:1] [17] [ons-listener] > 10.1.182.167,6100: BIND (Cannot assign requested address) > -- //www.freelists.org/webpage/oracle-l