Sounds to me like you have 2 possible angles to attack this problem:
- use SNMP to query the switches to see which IP is on which port.
Its been a long time since I've written an SNMP poll for a switch, but if I remmember
right I think the info you want is in the Bridge MIB.
- The static IP's should be pretty easy to locate. For the
dynamics you could query the DHCP server(s) to see what MAC a particular
IP is assigned to. This may or may not be doable (and may or
may ont be doable via SNMP), it depends on the capability of your DHCP server.
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