Configuring redundant ethernet cards

[wmor0082]

When configuring redundant ethernet cards, will the mac address change along with the IP address. A friend is having problems with IP security configuration.

 

[Ken Roach]

Are you talking about ControlLogix Ethernet modules in a ControlLogix redundancy system ?

The MAC IDs do not change. The redundancy modules and Ethernet modules coordinate the change in IP addresses.

There are revision-specific release notes and application notes about how to configure and troubleshoot the Ethernet switches and networks used with ControlLogix redundancy.

 

[mad4x4]

When configuring redundant ethernet cards, will the mac address change along with the IP address. A friend is having problems with IP security configuration.

You can Team and pair of netwrok cards on a PC to give a redundant pair and I think the team gets its own MAC address...

 

[Ken Roach]

ControlLogix doesn't use "teamed" 1756-EN2/3/4T network bridge modules the same way that some Windows and Unix computers do.

If you're using teamed adapters on your SCADA computers, you *still* need to read and understand the Redundant ControlLogix user manuals and application guides.

Troubleshooting "for a friend" without details on a complex topic is only likely to succeed through guesses or coincidence.