SecureKnowledge Weekly - Cluster Addresses on Different Subnets

[_Val_]

One of the classic yet not so commonly used features of ClusterXL is the ability to configure cluster IP addresses in a manner where physical IP addresses and VIPs are on different network subnets.

 The advantage of this is that it:

• Enables a multi-machine cluster to replace a single-machine gateway in a pre-configured network, without the need to allocate new addresses to the cluster members.
• Makes it possible to use one routable address only, for the ClusterXL Gateway Cluster.

Article sk32073 explains the configuration, implications and limitations of this feature. 

[Jerry]

side note from "Field Engineer" :

"As a result, communication from the external Management Server to the private IP addresses of the physical cluster members will not be possible over the Internet for services such as SIC."

- that basically rules out the opportunity for such topology in most of the enterprise-based environments these days.

Shame, as it looked like one of the options with potentially an excellent Plan-B for many of us  

nice SK on the other hand mate.

Cheers

Jerry

[_Val_]

It does not, if your management is located inside your internal network behind this cluster. It does, if you are trying to use it for a remote cluster.