In looking at all the tools used to monitor the health of our network. All the lookups are based on the RF MAC address of the CM. In the networking world of DOCSIS how can I get the IP address from the command line for any given MAC address?
In looking at all the tools used to monitor the health of our network. All the lookups are based on the RF MAC address of the CM. In the networking world of DOCSIS how can I get the IP address from the command line for any given MAC address?
Not sure where you are doing this, what you are doing it with but. If you are on the same subnet using a PC/Mac/Linux you can type Arp -a and it will display the mac/ip of the units the machine sees, if the machine hasn't communicated with that mac address you may not see it. You could ping 255.255.255.255 (every address in the world basically) for a few seconds and do arp -a again to display them. If you are talking at the cmts, on a cisco you can type "show cable modem" and it will show the mac address and ip's. If you are searching for a specific one you can use "show cable modem | include 0123" , that is the pipe character, and 0123 would be the last four (or any of the digits) of a mac address and that will show you the modem.