Re: Private Address Spaces

From: Bob Eager (rde42_at_spamcop.net)
Date: 11/25/03 

Date: 25 Nov 2003 00:19:57 GMT

On Mon, 24 Nov 2003 23:24:04 UTC, Craig A. Finseth <news@finseth.com>
wrote:

> In article <1069711392.885995@cache6.usenetserver.com>,
> Jim Fischer <jfischer_link5809@now.here.com> wrote:
> ...
> >A NIC's data link address (a.k.a., MAC address, data link identifier) is
> >not necessarily unique among all NICs. A company that manufactuers
> >millions of NICs - e.g., 3Com, Intel, Netgear, etc. - will eventually
> >produce multiple NICs with the same MAC address. This is generally not a
>
> No, they won't. They get a second (or third, or ...) manufacturer id.

However, many NICs can be told by software to use a different MAC
address ....one networking protocol relies (or did) on that...!

Relevant Pages

  • Re: Cannot Ping Beyond Default Gateway & DHCP Server
    ... That computer has two ethernet NICs: one from Intel, and one from Linksys. ... He says he has never had to change a MAC nor tell the home office to change one. ... My assumption now is that this MAC control is occurring in the cable modem, and that clearing it with power off causes it to loose its previously-stored value. ... Network Diagnostics shows pings to his IP, Default Gateway, and DHCP Server work, but pings to DNS servers fail. ...
    (microsoft.public.windowsxp.network_web)
  • Re: Mac 10.4 OS on G5
    ... I called into the SBS Team Support yesterday because I was getting bombared ... changed before the Mac problem begin. ... the dual NICs on the server from teaming as Load Balance to Fault Tolerance ...
    (microsoft.public.windows.server.sbs)
  • Re: RIS, same GUID, duplicates, Dell GX60s
    ... Hence the requirement of the RIS boot disk. ... At this stage, it can't find it, so decides to get the MAC ... > these nics part of the motherboard or pci devices? ...
    (microsoft.public.windowsxp.setup_deployment)
  • Re: Multiple external interfaces
    ... >> It sounds like you need to set up routing tables to have one segment get ... see in outgoing frames/packets -- they never see extB's IP or MAC). ... All other dual line setups to a single ISP I've seen required static ... external NICs and just one internal NIC? ...
    (comp.os.linux.networking)
  • Re: MAC address
    ... *All* NICs have the MAC hard coded. ... it is up to the NIC manufacturer to ... provide OS drivers that can over-ride the hardware MAC with a software MAC. ...
    (microsoft.public.win2000.general)
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