an address that begins with 01-00-5E in hexadecimal
ARP
what are the ethernet frame parts The source and destination MAC addresses
1)Source and destination MAC Address 2)FCS Field
Once the router/adaptor received the destination IP address (even if we entered in the incorrect MAC address) the router/adapter would remove the IP address from the Ethernet frame and using ARP, would get the correct MAC address of the destination
On a hub network:The host (PC-A) computer sends the frame out its Network Interface Card (NIC) to Fast-Ethernet 0/1 (F0/1) on the HUB. The HUB then sends that frame out every interface (except incoming interface). If the destination MAC address is aaa.bbb.ccc, and PC-B has MAC address aaa.aaa.bbb, then PC-B's NIC will ignore the frame and nothing else will happen.
255.255.255.255
ARP
The node sends out an ARP request with the destination IP address.
what are the ethernet frame parts The source and destination MAC addresses
A switch floods a frame when it doesn't have the destination MAC address in its MAC address table. The frame is then forwarded out of all interfaces except the one it was received on in an attempt to find the correct host.
The ethernet frame carries the IP (Internet Protocol) The Ethernet frame is made up of the following: 7 BYTE PREAMBLE 1 Byte "Start OF Frame" delimiter 6 byte destination address 6 byte source address 2 byte length or type 46 - 1500 bytes variable 802.2 or ethernet header and data 4 byte Frame Check sequence
The destination MAC is before the source one for easier scanning, mostly because it is the destination device that is important as that is the device we are trying to reach.
1)Source and destination MAC Address 2)FCS Field
Once the router/adaptor received the destination IP address (even if we entered in the incorrect MAC address) the router/adapter would remove the IP address from the Ethernet frame and using ARP, would get the correct MAC address of the destination
On a hub network:The host (PC-A) computer sends the frame out its Network Interface Card (NIC) to Fast-Ethernet 0/1 (F0/1) on the HUB. The HUB then sends that frame out every interface (except incoming interface). If the destination MAC address is aaa.bbb.ccc, and PC-B has MAC address aaa.aaa.bbb, then PC-B's NIC will ignore the frame and nothing else will happen.
== == I'm not a vandal or spammer I just haven't created a username and password yet but the answer to the question is that your physical address is burned into the net work card adapter on your PC or on Apple Macs by the manufacturer at the time of production and they are all unique. That physical address, just like your mailing address it is real, is also called your MAC address (Media Access Control address) and looks like this 00-56-7E-4A-DD-8D. The logical address is what the IP (Internet Protocol) address, can also be called virtual address, is and it looks like this 216.109.112.135 and is Yahoo's IP address. Your IP address can change and often does when you have a high speed Internet connection. This is called your DHCP Lease and it actually has an expiration date and time. When it expires you may get the same one or another one depending on what available IP addresses the DHCP server has available. You can also do this with the release and renew commands. You can look up the addresses on your computer with the ipconfig -all command in Windows command line utility (cmd on 2000/XP). To do this go to Start - RUN - type 'cmd'. Then your console window should open up. In there you can type 'ipconfig -all' and you will get the information about your physical address and IP address. To lookup Yahoo's or Google's address type ' nslookup yahoo.com or nslookup google.com and you should get the corresponding IP address of the web site. nslookup (name server lookup) is a network command line utility that will display the IP address of a site. I hope this helps as there is a great deal more information that I could write about these two address types.
physical source and destination addressesphysical source and destination addresses