Why are users from VLAN 100 unable to ping users on VLAN 200?
A.
Encapsulation on the switch is wrong.
B.
Trunking must be enabled on Fa0/1.
C.
The native VLAN is wrong.
D.
VLAN 1 needs the no shutdown command.
E.
IP routing must be enabled on the switch.
Explanation:
Switch supports multiple VLAN but have no Layer3 capability to route packets between those
VLANs, the switch must be connected to router external to the switch. This setup is most efficiently
accomplished by providing a single trunk link between the switch and the router that can carry the
traffic of multiple VLANs, which can in turn be routed by the router. For that trunk require between
Router & Switch. So trunking need to be enable on Fa0/1.
http://www.cisco.com/en/US/tech/tk389/tk815/tk857/tsd_technology_support_subprotocol_home.html