I had my layer 2 netgear switches replaced with layer 3 cisco managed switches and for the most part everything pings everything, except for one windows 7 workstation that can ping everything but nothing can ping it, see it, share with it... when I had the dumb netgear layer 2 switches everything worked. Anyone have a clue why a machine that worked before, when put into a cisco based managed switch network would all of a sudden loose the ability to be seen on the network, yet at the same time, it can see everything on the network?
Topology - 10/100/1000 L3 SW -> 10/100 L3 SW -> Cisco Router
Might be :
10/100/1000 L3 SW -> Cisco Router -> 10/100 L3 SW, I'd have to look, if it matters...
The 10/100 L3 SW and the Cisco Router have gig ports. On the 10/100 there are 4 uplink ports. On the Cisco Router, the ports are gig. Plugging the workstation into either the gig uplink on the switch or the gig port on the router results in this behavior where the workstation sees the network ok, but nothing on the network can see it.