Re: MAC address

Tech-Archive recommends: Repair Windows Errors & Optimize Windows Performance

From: David H. Lipman (DLipman~nospam~_at_Verizon.Net)
Date: 02/15/04 

Date: Sun, 15 Feb 2004 10:43:55 -0500

*All* NICs have the MAC hard coded. As I stated, it is up to the NIC manufacturer to
provide OS drivers that can over-ride the hardware MAC with a software MAC.

I also stated it was a 3Com 3c905 BUT...I have seen the ability in numerous other cards from
Intel to Linksys to NetGear.

Dave

"*Vanguard*" <no-email@no-spam.invalid> wrote in message
news:b_adneLzwqLlDbLdRVn-gw@comcast.com...
| "David H. Lipman" said in news:eRaMen88DHA.1548@tk2msftngp13.phx.gbl:
| > Ren:
| >
| > Right Click on "My Network Places" then choose "Properties"
| > Right Click on "Local Area Connection" then choose "Properties"
| > Choose "Configure"
| > Choose Advanced
| > Highlight "Network Address" and provide a 12digit Hex address, that
| > is not a multicast address, for the value.
| >
| >
| > Note...The above depends on the manufacturer's provided drivers. I
| > have found most drivers allow over-riding the hard coded MAC with
| > another address. This included Win98, WinME and WinXP as well.
| >
| > I'm using a 3Com 3c905 and it provides the functionality I described.
| >
| > Dave
| >
| >
| >
| > "Ren" <RenyLouis@hotmail.com> wrote in message
| > news:1007e01c3f38d$bf05ea00$a301280a@phx.gbl...
| >> Plz any one tell me, how to change the MAC address in
| >> win2000.
|
| Note that the description for that option say it is for "this adapter". If
| you have a standard NIC (network interface card), the MAC is fixed. The
| first part is a fixed number assigned to the NIC manufacturer while the
| second half is a number assigned by that manufacturer and is supposed to be
| unique. Some NIC manufacturers have decided to reuse their old addresses
| but also then have to make the MAC programmable since it is possible a
| customer could use a new NIC with a preprogrammed MAC address that happens
| to match the MAC address of their older non-programmable NIC. If you are
| using a network controller (onboard the motherboard) instead of a NIC then
| the MAC is programmable.
|
| David needs to specify if he is using a fixed (i.e., standard or old-spec)
| NIC, a programmable NIC, or an onboard chipset's network controller (which
| is programmable). Similary, the OP (Ren) should have mentioned what
| hardware he/she is using for a NIC or the chipset providing the onboard
| network controller.
|
|
| --
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|

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