I have a couple of machines I plan to make redundant gateways. They have many NICs and will sit on two networks (one for PLC communication and one for clients and database access). I connected the two directly together using a crossover cable to provide a dedicated redundancy channel. Redundancy now works, but clients can’t connect.
Using the java console, I can see what is happening. The clients are trying to connect on the IP address that I am using for the direct connection between the servers. Is there a hidden configuration option somewhere that allows you to specify the IP address to be used for client access? I figured this would be a good practice to segment redundancy traffic away from client traffic. It is the typical design for redundancy with Wonderware and GE products.
In case this isn’t clear, I will spell things out a little more:
NIC 1 has an address in the 192.168.19.x /255.255.255.0 subnet.
NIC 2 has an address in the 192.168.2.x /255.255.255.0 subnet.
NIC 1 is connected to the network on which the clients reside.
NIC 2 has a direct connection between the two gateways.
Once the redundancy settings are updated with the manual NIC 2 binding, the clients start looking for the gateway on the NIC 2 address.
Thanks for any help.