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Are there any restrictions relating to IP Addresses in the same Subnet when configuring the VIP for 10g RAC on OpenVMS (Doc ID 374096.1)

Last updated on FEBRUARY 06, 2020

Applies to:

Oracle Database - Enterprise Edition - Version and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Backup Service - Version N/A and later
HP OpenVMS Alpha
HP OpenVMS Itanium


Checked for relevance on 26-Feb-2013


Oracle� Database Installation Guide
10g Release 1 (10.1) for hp OpenVMS Alpha
Part No. B13681-01

The Oracle 10g installation guide for OpenVMS states that :

2.2.2 IP Address Requirements

Before starting the installation, you must identify or obtain the following IP addresses for each node:

o An IP address and an associated host name registered in the domain name service (DNS) for each public network interface

o One unused virtual IP address and an associated virtual host name registered in the DNS that you must configure for the primary public network interface

       The virtual IP address must be in the same subnet as the associated public interface. After installation, you
       can configure clients to use the virtual host name or IP address.  If a node fails, then its virtual IP address fails
       over to another node.

o A private IP address and an optional host name for each private interface

       Oracle recommends that you use nonroutable IP addresses for the private interfaces, for example,
       10.*.*.* or 192.168.*.*.. You can use the local TCP/IP database on each node to associate private host
       names with private IP addresses.

o One private IP address for each node to serve as the private interconnect

       This IP address must be separate from the public network, and it must have the same interface name
       on every node that is part of the cluster.

The above documentation can be viewed at :

Question: For the public network interface, are there any restrictions that could prevent having IP Addresses in the same Subnet when configuring the Virtual IP (VIP) for 10g RAC on OpenVMS


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