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- You can give the site the first part of the MAC address (the MAC prefix), and it will return the make of the equipment.
- Or you can give the make of the equipment, and it will return the MAC prefixes of that manufacturer.
Keep in mind that the maker of the internal equipment (e.g. network interface card) may be different than the maker of the overall device.
Also, remember that MAC addresses can be spoofed.
2. Given a local piece of equipment, you can determine the MAC address as follows:
2.1.1 Click Start, click Run and enter the command: winipcfg
2.1.2 Use the pull-down menu to select the network interface for the cable modem (rather than any PPP dial-up). Look for the line "Adapter Address."
2.2.1 Click Start, click Run and enter the command: cmd
2.2.2 In the command prompt windows, enter the command: ipconfig /all
2.2.3 Look for the output section related to the network interface for the cable modem, and look for the line "Physical Address."
2.3 Alternate procedure for WinXP:
2.3.1 Open control panel Network Connections.
2.3.2 Select the icon for the cable interface, right-click it and select Status.
2.3.3 Click tab Support.
2.3.4 Click button Details.
2.3.5 Look for the line "Physical Address."
2.4 Cable modems: Cable modems have multiple MAC addresses, one for the HFC side (Hybrid Fibre-Coax/cable TV coax socket) and one for the CPE side (Customer Premises Equipment, the ethernet socket). USB-capable cable modems also have two further MAC addresses: one for the cable modem USB socket and another for the emulated network interface in the USB driver in the PC. Although it is possible to discover the CPE MAC address(es) of the cable modem, there is no application or procedure that requires them.
Some cable ISPs require you to register the HFC MAC address of your cable modem with them.
2.4.1 The HFC MAC address of a cable modem is stamped on the manufacturer's label on the cable modem or on the label of the shipping box.
2.4.2 Sometimes cable modem MAC addresses are visible from their diagnostics. To see if your cable modem supports web based diagnostics, visit here:
2.5 Finding the MAC address of any other PC or device on the LAN. This procedure only works for PCs/devices in the same "IP sub-net" as the PC doing the discovery.
2.5.1 Click Start, click Run and enter the command: cmd
2.5.2 Type the command: ping xxx.xxx.xxx.xxx
(where xxx.xxx.xxx.xxx is the IP address of the PC/device for which you want to know the MAC address)
Make sure that you get at least one reply.
2.5.3 Type the command: arp -a
2.5.4 In the column "Internet Address," look for the sought IP address, and then in the same line, read the corresponding MAC address from the column "Physical Address."
2.6 To discover the MAC address of the WAN port of your router, please consult the documentation for your router. It may be on the manufacturer's label, or it may be viewed from a configuration panel.
*** Additional instructions on MAC address lookups are here: »homepage.ntlworld.com/robin.d.h.···ddr.html
One of the links to lookup MAC addresses returns 404, and the other one is outdated, doesn't have Ciscos new MAC addresses for example (e05f.b914.ecc0). http://netlookup.se/ is both updated and working.