mac-address

switch-connected to router.in router its give this output:
anyone explain this output?


rtr#sh mac-address-table
Destination Address Address Type VLAN Destination Port

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0016.445f.d68b Dynamic 1 FastEthernet3
001f.3c04.149f Dynamic 1 FastEthernet3
001f.3c20.99a9 Dynamic 1 FastEthernet3
0022.6950.0865 Dynamic 1 FastEthernet3
0022.fbba.595e Dynamic 1 FastEthernet3
0024.2b7e.4481 Dynamic 1 FastEthernet3
00c0.ca3e.9ebe Dynamic 1 FastEthernet3
109a.dd3c.e65c Dynamic 1 FastEthernet3
30e4.db1f.10d0 Self 1 Vlan1
c417.fe69.a459 Dynamic 1 FastEthernet3
c83a.35c0.37ce Dynamic 1 FastEthernet3

This is the MAC address table (or as referred to the CAM, Content Addressable Memory). Each row shows a mapping between a MAC address (that exists on your LAN) and an interface on your router (or switch).

In your case above, most of the MACs map to the same Fastethernet3 port, this is obviously because your switch is connected to that port so all MACs on the switch's LAN show there.