![]() ![]() The switch will flood broadcast frames out of all ports except the port that it was received on. The broadcast address has the value of (all binary ones). Frames sent to a broadcast address will be delivered to all devices on the LAN: One example of an Ethernet multicast address would be 01:00:0C:CC:CC:CC, which is the address used by CDP (Cisco Discovery Protocol).īroadcast addresses represent all devices on the LAN. ![]() This helps a network switch to distinguish between unicast and multicast addresses. Multicast frames have a value of 1 in the least-significant bit of the first octet of the destination address. Start by pinging the device you want the MAC to address for. Using the website you can enter the first 6 characters of a MAC address to find out the manufacturer or company name who has registered that block of MAC addresses. Here is one example of how to find a MAC address using an IP address. A frame sent to a multicast address will be forwarded to a group of devices on the LAN: You can use the first 6 characters of a MAC address to find out the vendor or manufacturer name. Multicast addresses represent a group of devices in a LAN. The unicast address will have the value of the MAC address of the destination device. A unicast frame will be sent to a specific device, not to a group of devices on the LAN: Unicast addresses represent a single LAN interface. ![]() ![]() There are three types of Ethernet addresses: 1. ![]()
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