Network interface subnet are not same for both the RAC nodes
Cause – The Public or Private interface on the nodes indicated are on a different subnet than the ones used on other nodes.
Action – Ensure that the specified Public or Private interface share the same subnet across the nodes.
NODE 1:
[root@rac1 oracle]# ifconfig
eth1 Link encap:Ethernet HWaddr 08:00:27:80:C4:46
-----> inet addr:192.168.57.110 <------- Bcast:192.168.57.255 Mask:255.255.255.0
inet6 addr: fe80::a00:27ff:fe80:c446/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:824 errors:0 dropped:0 overruns:0 frame:0
TX packets:77 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:185320 (180.9 KiB) TX bytes:13507 (13.1 KiB)
NODE 2:
[oracle@rac2 ~]$ ifconfig
eth2 Link encap:Ethernet HWaddr 08:00:27:71:E8:1A
-----> inet addr:192.168.56.194 <------- Bcast:192.168.56.255 Mask:255.255.255.0
inet6 addr: fe80::a00:27ff:fe71:e81a/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:71 errors:0 dropped:0 overruns:0 frame:0
TX packets:51 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:12448 (12.1 KiB) TX bytes:15858 (15.4 KiB)
Solution:
Contact your network admin
identify the mac address of both nodes nic interface card
configure the ethernet interface to the same subnet!
Reconfigure ipaddress for nodes
