The ARP table on these devices will contain the compliance of the MAC and IP addresses.įor searching, use the sh arp | inc x.x.x.x command, where x.x.x.x is the IP of the host we need. It’s possible if you have access to a Cisco router or Cisco ASA firewall which is the default host gateway. To learn the MAC address remotely if you know the user’s computer IP address.To execute the ipconfig /all command in the command line on the user’s computer.There are two possible ways of how you can determine the MAC address: It’s known that the IP address of his computer is 192.168.10.100 So, let’s say you need to find the switch port a user John is connected to. Your task is to use this information wisely. The point is that each switch stores information about all MAC addresses that showed at least any network activity in the last few minutes. To do it, you don’t have to look for it visually. In everyday work, it’s often necessary to determine the switch and port a user or device is connected to.
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