الله يكرمك اكتب بالعربى يعنى لو تفصل
salamo 3likom
could someone help me in what is the function of the local bit in the mac address i read it in the book but i donot get it
thanks
الله يكرمك اكتب بالعربى يعنى لو تفصل
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السلام عليكم
اولا اشكرك على اهتمامك وعلى النصيحة
انا اسأل عن وظيفة ال local bit فى ال MAC address لانى لم أفهم ما هى وظيفته
وجزاك الله خيرا
A universally administered address is uniquely assigned to a device by its manufacturer; these are sometimes called "burned-in addresses" (BIA). The first three octets (in transmission order) identify the organization that issued the identifier and are known as the Organizationally Unique Identifier (OUI). The following three (MAC-48 and EUI-4or five (EUI-64) octets are assigned by that organization in nearly any manner they please, subject to the constraint of uniqueness. The IEEE expects the MAC-48 space to be exhausted no sooner than the year 2100; EUI-64s are not expected to run out in the foreseeable future.
A locally administered address is assigned to a device by a network administrator, overriding the burned-in address. Locally administered addresses do not contain OUIs.
Universally administered and locally administered addresses are distinguished by setting the second least significant bit of the most significant byte of the address. If the bit is 0, the address is universally administered. If it is 1, the address is locally administered. The bit is 0 in all OUIs. For example, 02-00-00-00-00-01. The most significant byte is 02h. The binary is 00000010 and the second least significant bit is 1. Therefore, it is a locally administered address
السلام عليكم
اشكرك على هذا التوضيح
جزاك الله جيرا
ولكن فى كتاب ال CCNA ال local bit is الثانيه من ناحية اليسار مثل 01000000 اما توضيحك فأنه يتكلم عن IPv6
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