Identifying IP address of attached device?

[Chris_Gray]

I'm using a Perl script using SNMP to access the configuration of the 100 or so switches across a WAN.  Some of the switches are in very small rooms in locations very few people go near.  The switch ports are connected to patch-panels which are connected to wall/floor ports throughout the building.  Some switches are connected to other switches via fibre - and so on.  The sites are connected via MPLS routers supplied and managed by a third party - so I do NOT have access to them.  I'm trying to identify what is connected to each switch port.  I'm currently using CDP to identify switches / routers and will shortly look to move to LLDP.  However I need guidance as to how to obtain information about printers, PCs and servers are attached.

The information I'd really like is IP address, MAC and make/model - but do recognize that I need to look at what is feasible. 

PCs and servers are all HP/Compaq (e.g. nc2400 laptop).  Printers are mainly HP.

I'm using "HP Web Jet Admin" to trawl for printers and it is finding a lot - including the odd non-HP printer.  But, while it gives me the IP address it doesn't show where it is connected.  It should give the printers' MAC addresses which I may then be able to track back.

So - what is it I can tell using SNMP?

[Chris_Gray]

Has anyone any ideas?

[brandher1230]

I am still using this one:

Managed Switch Port Mapping Tool from

http://www.netscantools.com/

PCM does not support it