Cisco Switch IP Address MAC Address and Switch Port Location Command
To locate a switch port on a Cisco Switch for a specific IP address you can approach it like this. Note these instructions are demonstrated on a Cisco IOS Software, Catalyst 4500 L3 Switch
Running Software (cat4500-ENTSERVICESK9-M), Version 12.2(46)SG, RELEASE SOFTWARE (fc1)
CiscoSwitch01>en
CiscoSwitch01#ping 192.168.1.157
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.157, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/3/8 ms
CiscoSwitch01#show arp | include 192.168.1.157
Internet 192.168.1.157 0 22df.c47e.0fd7 ARPA Vlan404
CiscoSwitch01#show mac address-table | include 22df.c47e.0fd7
404 22df.c47e.0fd7 dynamic ip GigabitEthernet3/34
CiscoSwitch01#show run
Building configuration...
!
/GigabitEthernet3/34
filtering...
interface GigabitEthernet3/34
description Host01-1 test server
switchport access vlan 404
switchport mode access
spanning-tree portfast
!CiscoSwitch01#
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