I have a router that is performing NAT for a dozen or so switches.  The switches behind the router have a port mapped so that they can be managed via HTTP.  I want to monitor using HTTP to determine if any of those devices go down since I obviously cannot monitor them using ICMP in this case.

The problem is that I can only set each device to monitor using ICMP or one TCP port.  I thought about creating a new device for each switch I want to monitor and assigning them their specific TCP port for monitoring, but since they all share the same IP address, OpManager does not let me add more than one.

Is there any way to add more than one device that shares the same IP address?  If not, is there a way to do this with OpManager or do I need another product?

An example of what I want to monitor is this (using fictional IP's)

- Router1, IP:88.88.88.88 (using ICMP)

- Switch1, IP:88.88.88.88 (using TCP Port 10001)

- Switch2, IP:88.88.88.88 (using TCP Port 10002)

- Switch3, IP:88.88.88.88 (using TCP Port 10003)

- Switch4, IP:88.88.88.88 (using TCP Port 10004)

- Switch5, IP:88.88.88.88 (using TCP Port 10005)

- Switch6, IP:88.88.88.88 (using TCP Port 10006)

- Switch7, IP:88.88.88.88 (using TCP Port 10007)

- Switch8, IP:88.88.88.88 (using TCP Port 10008)