在cisco交换机上查找某个已知ip地址的主机所对应的设备的端口？
如题，如何在局域网内查找某个ip地址所在的交换机接口？
C4506-02#sh arp | i 10.197.5.6
Internet 10.197.5.6 1 0021.9b4f.0fb9 ARPA Vlan21
C4506-02#sh mac-address-table address 0021.9b4f.0fb9
Unicast Entries
vlan mac address type protocols port
-------+---------------+--------+---------------------+--------------------
21 0021.9b4f.0fb9 dynamic ip GigabitEthernet3/39
Internet 10.197.5.6 1 0021.9b4f.0fb9 ARPA Vlan21
C4506-02#sh mac-address-table address 0021.9b4f.0fb9
Unicast Entries
vlan mac address type protocols port
-------+---------------+--------+---------------------+--------------------
21 0021.9b4f.0fb9 dynamic ip GigabitEthernet3/39
