Short for Organizational Unique Identifier, the first 24 bits of a MAC address for a network-connected device, which indicate the specific vendor for that device.
#Cisco show mac address serial number
What is the serial number portion of the MAC address for this device? The MAC address is defined on the Physical Address line of the output. DHCP servers use the MAC address to identify devices and give some devices fixed IP addresses.Īlso know, which part of the output refers to the MAC address? Router show bridge-domain 730 mac security address Port MAC Address Type Rem. They only allow access for known devices ( MAC address is unique and identifies devices) with the correct passphrase. 0.0, the broadcast network address is 10.255.Īlso Know, why would you need to know the MAC address of a device? Wireless access points often use MAC addresses for access control. For example, if your network address is 10.0.
Layer 3 broadcast traffic, however, is sent to all devices in a network using a broadcast network address. Layer 2 broadcast traffic is sent to the broadcast domain using a MAC address of FF:FF:FF:FF:FF:FF. Similarly one may ask, can you have broadcasts at the layer 2 level if so what would the MAC address be? Use the show arp command to display MAC address information.