Hi all, I already have 11.2.0.2 grid infrastructure installed (upgraded from 10.2.0.4) with 10.2.0.4 RAC database. I am trying to install 11.2.0.2 Database binaries in to a new home, but get these 2 errors during the pre-requisite checks. "Node Connectivity - This is a prerequisite condition to test whether connectivity exists amongst all the nodes. The connectivity is being tested for the subnets 10.255.255.0,10.180.201.0" and "PRVF-10205 : The VIPs do not all share the same subnetwork, or the VIP subnetwork does not match that of any public network interface in the cluster" Details of interfaces are as follows /u01/app/product/11.2.0/grid/bin/oifcfg iflist -p -n bond0 10.180.0.0 PRIVATE 255.255.0.0 bond1 10.255.255.0 PRIVATE 255.255.255.0 bond1 169.254.0.0 UNKNOWN 255.255.0.0 and /u01/app/product/11.2.0/grid/bin/oifcfg getif -global bond1 10.255.255.0 global cluster_interconnect bond0 10.180.201.0 global public ifconfig returns the following bond0 Link encap:Ethernet HWaddr 00:1A:4B:DC:F8:54 inet addr:10.180.201.15 Bcast:10.180.255.255 Mask:255.255.0.0 inet6 addr: fe80::200:ff:fe00:0/64 Scope:Link UP BROADCAST RUNNING MASTER MULTICAST MTU:1500 Metric:1 RX packets:9193348 errors:0 dropped:0 overruns:0 frame:0 TX packets:20200012 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:1000409336 (954.0 MiB) TX bytes:30330339159 (28.2 GiB) bond0:1 Link encap:Ethernet HWaddr 00:1A:4B:DC:F8:54 inet addr:10.180.201.21 Bcast:10.180.255.255 Mask:255.255.0.0 UP BROADCAST RUNNING MASTER MULTICAST MTU:1500 Metric:1 bond0:4 Link encap:Ethernet HWaddr 00:1A:4B:DC:F8:54 inet addr:10.180.201.115 Bcast:10.180.255.255 Mask:255.255.0.0 UP BROADCAST RUNNING MASTER MULTICAST MTU:1500 Metric:1 bond1 Link encap:Ethernet HWaddr 00:1A:4B:DC:C4:72 inet addr:10.255.255.15 Bcast:10.255.255.255 Mask:255.255.255.0 inet6 addr: fe80::200:ff:fe00:0/64 Scope:Link UP BROADCAST RUNNING MASTER MULTICAST MTU:1500 Metric:1 RX packets:12504677 errors:0 dropped:0 overruns:0 frame:0 TX packets:11844935 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:4286044266 (3.9 GiB) TX bytes:3697250614 (3.4 GiB) bond1:1 Link encap:Ethernet HWaddr 00:1A:4B:DC:C4:72 inet addr:169.254.136.7 Bcast:169.254.255.255 Mask:255.255.0.0 UP BROADCAST RUNNING MASTER MULTICAST MTU:1500 Metric:1 eth0 Link encap:Ethernet HWaddr 00:1A:4B:DC:F8:54 UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1 RX packets:7795753 errors:0 dropped:0 overruns:0 frame:0 TX packets:20200012 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:842020036 (803.0 MiB) TX bytes:30330339159 (28.2 GiB) Interrupt:169 Memory:f6000000-f6012100 eth1 Link encap:Ethernet HWaddr 00:1A:4B:DC:C4:72 UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1 RX packets:12504291 errors:0 dropped:0 overruns:0 frame:0 TX packets:11844935 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:4286019502 (3.9 GiB) TX bytes:3697250614 (3.4 GiB) Interrupt:169 Memory:fa000000-fa012100 eth2 Link encap:Ethernet HWaddr 00:1A:4B:DC:F8:54 UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1 RX packets:1397595 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:158389300 (151.0 MiB) TX bytes:0 (0.0 b) Interrupt:193 eth3 Link encap:Ethernet HWaddr 00:1A:4B:DC:C4:72 UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1 RX packets:386 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:24764 (24.1 KiB) TX bytes:0 (0.0 b) Interrupt:169 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:1478358 errors:0 dropped:0 overruns:0 frame:0 TX packets:1478358 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:391073271 (372.9 MiB) TX bytes:391073271 (372.9 MiB) Hosts File is as follows # Loopback # 127.0.0.1 localhost.localdomain localhost # # RAC Node 1 # 10.180.201.15 rac-node1.ddi.aus rac-node1 10.255.255.15 rac-node1-priv.ddi.aus rac-node1-priv 10.180.201.115 rac-node1-vip.ddi.aus rac-node1-vip # # RAC Node 2 # 10.180.201.16 rac-node2.ddi.aus rac-node2 10.255.255.16 rac-node2-priv.ddi.aus rac-node2-priv 10.180.201.116 rac-node2-vip.ddi.aus rac-node2-vip Anyone got any ideas why? Oracle suggested running installer with -ignoreSysPrereqs but this had no effect. Many thanks Neil -- //www.freelists.org/webpage/oracle-l