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#35 | ||||
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SigWhore
Join Date: Jan 2008
Location: Montreal, Canada
Posts: 281
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Moetheman:
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Wrong, YOU don't. You are just saying what you think you know about TCP/IP, and making a fool of yourself. Try Googling MAC addresses and you will see for yourself that everything you think you know about it is wrong. Quote:
Anyway, sorry to now put you in your place, but here is a lesson for you in TCP/IP Networking: Take a look at http://en.wikipedia.org/wiki/OSI_model This is the industry standard OSI model for data. TCP/IP functions at Layer 3 & 4, and MAC functions at Layer 2. Layer 2 is for the physical addressing of the local network. If you then look at the structure of the IP packet http://en.wikipedia.org/wiki/Ip_%28struct%29 you'll see that it contains IP addressing only, not MAC addressing, because that is done in the lower layers (Layer 2). That is why the arp function is needed to translate MAC <-> IP in order to deliver on the LAN. The only exception in modern day for MAC to leave the LAN is when a user has a Cable Modem and the Cable Modem has a MAC address, which is sent via the PPPoE protocol (or PPP for dialup) to the local ISP for uthentication to allow Cable Modem to communicate on network and to get assigned an IP address from the ISP. Once the Cable Modem PPPoE authentication is complete, the rest of the communication occurs at a higher Layer, so there is no MAC in the IP (IP or TCP/IP or higher). Now before you decide that "Wiki" is shit or not good enough for you, kindly offer a good, smart reply to the contrary, or please shut the fuck up. Mark Prince http://www.2Much.net http://www.LiveCamNetwork.com |
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