Is there a (network) workaround for OMS to access RAC vip on IP range that is not accessible !

Hi

We have the following set up:

A 2 node 11.2 RAC cluster on Redhat Linux 5.2 set up on 192.XX IP address range. so public, scan, vip etc all have 192.XX addresses local to the chassis.

Is there a workaround to this issue besides rebuilding the RAC cluster on publicly accessible sub network e.g. 172.XX addresses ?

See evidence below.

The 10.2 Oracle Grid OMS sits on our network the other side of  a firewall and can access the nodes via 172.XX address.

From Grid OMS server

[oracle@o2hp127]-> telnet 172.27.116.36 1521

Trying...

Connected to 172.27.116.36.

Escape character is '^]'.

The issue as I understand it is that Grid OMS needs to access the VIP/listener on this address below to work properly