I have the same problem.
Old: PCs --> 2960 --- > 3750 ---> 6800 ---> Firewall -- > Internet
New: PCs --> 2960 --- > 4500 ---> 6800 ---> Firewall -- > Internet
I replaced old Switch 3750 to New Switch 4500. I copied the same configuration on Switch 3750 to new Switch 4500.
At the Switch 3750, I can access to VLAN 1 Mgmt to manage Switch. I can ping and manage Switch with VLan 1 Mgmt.
After changing to new Switch 4500, I can ping to other Vlans from PCs connected to Switch 4500. The only problem, I can't ping to other vlans from Switch 4500 itself
I tried to change native vlan to other vlan and configured trunk port to map with this other native vlan but the problem is the same.
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