Holdtime : 144 secNow you should connect to the neighbor switch SW -DELTACONFIG-2Р вЂ™Р’В with the running address 192.168.1.202Р вЂ™Р’В and find the necessary MAC address there. Interface: GigabitEthernet0/1, Port ID (outgoing port): GigabitEthernet0/18 Platform: cisco WS-C2960-24TT-L, Capabilities: Switch IGMP Port ID ( Gig 0/18) Р Р†Р вЂљРІР‚Сљ the interface of the neighbor switch. Local Intrfce ( Gig 0/1) Р Р†Р вЂљРІР‚Сљ the local interface where the neighbor switch is connected to S - Switch, H - Host, I - IGMP, r - Repeater, P - PhoneР вЂќР’Вevice ID Local Intrfce Holdtme Capability Platform Port IDР вЂќР’Вevice ID ( SW-DELTACONFIG-2) Р Р†Р вЂљРІР‚Сљ the name of the neighbor device The shР вЂ™Р’В cdpР вЂ™Р’В neighborsdetail command will additionally show the IP addresses for controlling the neighbor switches.Р вЂќР’В¬apability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge The command will show you names and related ports of all the Cisco switches that are connected to the current switch. If you have several switches in your office, use the sh cdp neighbors command to determine the name and address for running the neighbor switch. In this case, you should repeat search in the MAC addresses table of the neighboring switch. Sometimes, another switch is connected to the found port of the current switch.

But if there are several switchesР вЂ™Р’В in the network, itР Р†Р вЂљРІвЂћСћs possible that you found not the final one. If you have a small office and all network is organized only usingР вЂ™Р’В one switch, your search is finished. The output line shows that the host is located in VLAN 10 and is connected to a port of the Gigabitethernet 0/1 switch. SW-DELTACONFIG-1# sh mac address-table | inc 74f2 Usually, four last symbols will be enough. For more convenience, you can filter the necessary Р В РЎС™Р В РЎвЂ™Р В Р Р‹ address.

Usually, there are a large number of records shown at this table. The show mac address-tableР вЂ™Р’В command (it can sometimes be written with an additional hyphen instead of a space, like this: showР вЂ™Р’В mac - address-table) shows the MAC address table of all active devices that are connected to the switch. Having determined the deviceР Р†Р вЂљРІвЂћСћs MAC address, you can keep on searching for its direct location on the switch. Protocol Address Age (min) Hardware Addr Type Interface The ARP table on these devices will contain the compliance of the MAC and IP addresses.Р вЂќР вЂЎor searching, use the shР вЂ™Р’В arp |Р вЂ™Р’В incР вЂ™Р’В x.x.x.x command, where x.x.x.x is the IP of the host we need. ItР Р†Р вЂљРІвЂћСћs 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 userР Р†Р вЂљРІвЂћСћs computer IP address.To execute the ipconfig /all command in the command line on the userР Р†Р вЂљРІвЂћСћs computer.There are two possible ways of how you can determine the MAC address: ItР Р†Р вЂљРІвЂћСћs known that the IP address of his computer is 192.168.10.100 So, letР Р†Р вЂљРІвЂћСћs say you need to find the switch port a user JohnР вЂ™Р’В 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 donР Р†Р вЂљРІвЂћСћt have to look for it visually. In everyday work, itР Р†Р вЂљРІвЂћСћs often necessary to determine the switch and port a user or device is connected to.

Which command show mac address cisco