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Public-IP and VIP are not reachable from other subnets

859963Jan 25 2019 — edited Jan 29 2019

Hi

I've installed a RAC 10g on RHEL on HP servers,2 nodes。The cluster is running in a separate subnet.

Problem

There is a router between RAC and other subnet.  I can access the RAC in the same subnet(192.168.10.*), Public-ip and VIP work well. Recently I cannot ping Public-ip and VIP sometimes from other subnet, but I can ping the other subnet from Public-ip and VIP all the time, which means there is only one way between RAC and outside visitors. I don't think it's the network equipment problem beacuse  the network equipment config didn't change, the other servers in the RAC subnet can be accessed from outside as usual. It seems like the router only shutdown the connection from outside visitors to the RAC.

I found the similar problem is Bug 13440962 - Different subnet failed to connect to vip after restart vip. But I've checked the log, there was no reboot record(either server or rac instance), no VIP failover problem, no IP confliction. The most reasonable fact may be RAC was wrong working in someplace.

The scenario:

RAC-node1

Public-IP 192.168.10.4

VIP          192.168.10.14

Private-IP 192.168.44.2

bind0:eth4 eth5

          Link encap:Ethernet  HWaddr 78:1C:C0:F8:A4:12

          inet addr:192.168.44.2  Bcast:192.168.44.255  Mask:255.255.255.0

          UP BROADCAST RUNNING MASTER MULTICAST  MTU:1500  Metric:1

ifcfg-bond0

          DEVICE=bond0

          BOOTPROTO=none

          IPADDR=192.168.44.2

          NETMASK=255.255.255.0

          BORADCAST=192.168.44.255

          ONBOOT=yes

          TYPE=Ethernet

          USERCTL=no

          IPV6INIT=no

          PEERDNS=yes

bond1:eth1 eth2

          Link encap:Ethernet  HWaddr 78:1C:C0:F8:3E:1C

          inet addr:192.168.10.4  Bcast:192.168.10.255  Mask:255.255.255.0

          UP BROADCAST RUNNING MASTER MULTICAST  MTU:1500  Metric:1

bond1:1   Link encap:Ethernet  HWaddr 78:1C:C0:F8:3E:1C

          inet addr:192.168.10.14  Bcast:192.168.10.255  Mask:255.255.255.0

          UP BROADCAST RUNNING MASTER MULTICAST  MTU:1500  Metric:1

ifcfg-bond1

          DEVICE=bond1

          BOOTPROTO=none

          IPADDR=192.168.10.4

          NETMASK=255.255.255.0

          BORADCAST=11.11.12.255

          ONBOOT=yes

          TYPE=Ethernet

          GATEWAY=192.168.10.1

          USERCTL=no

          IPV6INIT=no

          PEERDNS=yes

RAC-node2

Public-IP 192.168.10.5

VIP          192.168.10.15

Private-IP 192.168.44.4

bond0:eth4 eth5

          Link encap:Ethernet  HWaddr 78:1C:C0:F8:9A:2A

          inet addr:192.168.44.4  Bcast:192.168.44.255  Mask:255.255.255.0

          UP BROADCAST RUNNING MASTER MULTICAST  MTU:1500  Metric:1

ifcfg-bond0

          DEVICE=bond0

          BOOTPROTO=none

          IPADDR=192.168.44.4

          NETMASK=255.255.255.0

          BORADCAST=192.168.44.255

          ONBOOT=yes

          TYPE=Ethernet

bond1:eth1 eth2 

          Link encap:Ethernet  HWaddr 78:1C:C0:F8:2A:6E

          inet addr:192.168.10.5  Bcast:192.168.10.255  Mask:255.255.255.0

          UP BROADCAST RUNNING MASTER MULTICAST  MTU:1500  Metric:1

bond1:1   Link encap:Ethernet  HWaddr 78:1C:C0:F8:2A:6E

          inet addr:192.168.10.15  Bcast:192.168.10.255  Mask:255.255.255.0

          UP BROADCAST RUNNING MASTER MULTICAST  MTU:1500  Metric:1

ifcfg-bond1

          DEVICE=bond1

          BOOTPROTO=none

          IPADDR=192.168.10.5

          NETMASK=255.255.255.0

          BORADCAST=11.11.12.255

          ONBOOT=yes

          TYPE=Ethernet

          GATEWAY=192.168.10.1

          USERCTL=no

          IPV6INIT=no

          PEERDNS=yes

Thank you for your help.

David

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