sh arp | inc 해당IP 로 검색하여 MAC 값을 찾는다.
해당 하는 방법 등으로 이용된 포트를 찾는다
sh mac-address-table add 맥어드레스
sh mac-address-table int gi6/44
cisco#sh mac-address-table vlan 1
Mac Address Table
------------------------------------------
Vlan Mac Address Type Ports
---- ----------- ---- -----
1 0000.0c07.ac01 DYNAMIC Po1
1 0000.0c07.ac02 DYNAMIC Po2
1 0000.0c07.ac03 DYNAMIC Fa0/21
1 0004.6d77.c060 DYNAMIC Po1
1 0004.ac57.75ba DYNAMIC Fa0/8
1 0004.c0f2.e060 DYNAMIC Po2
1 0004.c120.6770 DYNAMIC Fa0/13
1 0006.29dc.0643 DYNAMIC Fa0/2
1 0006.29dc.065e DYNAMIC Po2
1 0006.29dc.069e DYNAMIC Po2
1 0006.29dc.06c3 DYNAMIC Fa0/1
1 0006.29dc.2c38 DYNAMIC Po2
1 0006.29dc.cc82 DYNAMIC Fa0/3
1 0006.29dc.cce2 DYNAMIC Fa0/4
1 0007.ebe9.f300 DYNAMIC Fa0/21
1 0008.02ef.d291 DYNAMIC Fa0/17
1 0008.02ef.d2c0 DYNAMIC Po2
1 0009.e8b0.86f0 DYNAMIC Po2
1 000b.fd5e.c480 DYNAMIC Po2
1 000b.fd5e.c497 DYNAMIC Po2
1 000b.fd5e.c498 DYNAMIC Po2
1 0030.8564.5a00 DYNAMIC Fa0/14
1 0060.9755.2144 DYNAMIC Fa0/22
1 0060.9755.2462 DYNAMIC Po2
1 0800.2082.44b8 DYNAMIC Po2
1 0800.20fd.3c0b DYNAMIC Po2
1 0800.20fd.3c9f DYNAMIC Fa0/11
Total Mac Addresses for this criterion: 27
