Change MAC address
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Posted by on January 25, 2005, 8:53 am
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I have 2 networking devices which are the same. But the MAC addresses can be changed. When I connect them to a hub, do I need to change the MAC address so that they have different MAC addresses? Thanks! | ||||||||||||||||||||||||||||||||||||||||
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Posted by James Knott on January 25, 2005, 3:14 pm
Please log in for more thread options  can be changed, but without further info, I haven't any idea about what you've got. | ||||||||||||||||||||||||||||||||||||||||
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Posted by on January 25, 2005, 4:22 pm
Please log in for more thread options leonlai2k@yahoo.com wrote:What kind of devices? In general (plus or minus the discussion in this ng about what happens or how it should be handled when two MAC addresses are the same), every single MAC address should be globally unique. | ||||||||||||||||||||||||||||||||||||||||
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Posted by James Knott on January 25, 2005, 8:17 pm
Please log in for more thread options William P.N. Smith wrote:However, unique MACs are only required on the local network. One you pass through a router, the original MAC is lost, along with the rest of the original ethernet (or other) frame. | ||||||||||||||||||||||||||||||||||||||||
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Posted by Walter Roberson on January 25, 2005, 10:05 pm
Please log in for more thread options <William P.N. Smith> wrote::In general (plus or minus the discussion in this ng about what happens :or how it should be handled when two MAC addresses are the same), :every single MAC address should be globally unique. Though that's not the underlying definition: the underlying requirement is not -global- uniqueness, but rather uniqueness per segment. -- Reviewers should be required to produce a certain number of negative reviews - like police given quotas for handing out speeding tickets. -- The Audio Anarchist | ||||||||||||||||||||||||||||||||||||||||
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>
> I have 2 networking devices which are the same. But the MAC addresses
> can be changed. When I connect them to a hub, do I need to change the
> MAC address so that they have different MAC addresses?