Explains how to configure different port numbers for multiple devices behind a single NAT device.
When multiple Cisco vEdge devices are installed behind a single NAT device, you can configure different port numbers for each device so that the NAT can properly identify each individual device. You do this by configuring a port offset from the base port 12346.
Port offset configuration details
The port offset can be a value from 0 through 19. The default port offset is 0.
For example, if you configure a device with a port offset of 1, that device uses port 12347.
For NAT devices that can differentiate among the devices behind the NAT, you do not need to configure the port offset.