In the first case, use the command ‘traceroute mac 0019.9955.0f60 0b’ Ciscozine-SW1#traceroute mac 0019.9955.0f60 0b You have two options to find the path between two hosts:
Protocol Address Age (min) Hardware Addr Type Interface Total Mac Addresses for this criterion: 6 Suppose to have two host (192.168.0.4, 192.168.0.6) and you would find the layer2 path using the Ciscozine-SW1 Switch.īelow the MAC address table and the ARP table of the Ciscozine-SW1 switch: Ciscozine-SW1#sh mac-address-table dynamic See you the example to understand how this feature works. If you specify source and destination addresses that belong to different VLANs, the Layer 2 path is not identified, and an error message appears. The traceroute mac command output shows the Layer2 path when the specified source and destination addresses belong to the same VLAN. To do it, Cisco has implemented a good tool: traceroute mac. In a Data Center, it is often required to find a host and the layer2 path. Routers decrement this parameter and discard a packet when the TTL value has reached zero, returning an ICMP error message (ICMP Time Exceeded) to the sender.
Tracing the intermediate routers traversed involves control of the time-to-live (TTL) Internet Protocol parameter. Traceroute sends a sequence of Internet Control Message Protocol (ICMP) packets addressed to a destination host. If you know any better ways, please feel free to share.Traceroute is a tool for measuring the route path and transit times of packets across an Internet Protocol (IP) network. It can be useful either when you want to enter the MAC address into a network analyzer or when you need to know what protocols are currently in use on each network adapter on a computer. It’s the command line that returns the MAC address with the list of network protocols associated with each address for all network adapters from either local or remote computer. It’s primarily designed to help troubleshoot NetBIOS name resolution problems but it does get the MAC address from the remote system as well. NBTSTAT is a Windows built-in diagnostic tool for NetBIOS over TCP/IP which mostly used in Windows system. Ping the remote computer to get the IP address and use ARP to retrieve the MAC address from that IP. Let me show you 3 different ways to archive this. ipconfig /all (to get the MAC address from a local computer) As we all know, we can use the command line IPConfig to get the MAC address of the network adapter installed on the local computer but to get the MAC address from a remote computer we need to use the different commands.
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