Subject: Ethernet MAC Cloning
To: None <tech-net@netbsd.org>
From: Benson <peachokay@hotmail.com>
List: port-i386
Date: 02/27/2002 12:41:57
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Hi dear folks,
I am looking for one simple way (.to use it is easy, to implement it is
not easy at all~~)
to change the MAC address of a network card in NetBSD (since some ISPs
would use
the NIC's MAC address to authenticate a service), let's say card i82557
of Intel.
I tried to study the source code for i82557 to know the location of the
register on
the NIC to write, but I am not that good enough to understand those
codes,
especially to write with ioctl. I also have an idea of modifying the
command 'ifconfig'
so that it can set the hardware address as the linux's version of
ifconfig does.
But again, I was knocked down with ioctl.
I am not sure how much effort it would take to write a patch for
ifconfig
with -H option to set MAC address or any other possible way one can
provide me with.
Thanks.
Benson
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<p class=3DMsoNormal =
style=3D'mso-layout-grid-align:none;text-autospace:none'><font
size=3D1 face=3DArial><span lang=3DEN-US =
style=3D'font-size:9.0pt;font-family:Arial;
mso-font-kerning:0pt'>Hi dear folks,<o:p></o:p></span></font></p>
<p class=3DMsoNormal =
style=3D'text-indent:24.0pt;mso-layout-grid-align:none;
text-autospace:none'><font size=3D1 face=3DArial><span lang=3DEN-US =
style=3D'font-size:
9.0pt;font-family:Arial;mso-font-kerning:0pt'>I am looking for one =
simple way (…to
use it is easy, to implement it is not easy at =
all~~)<o:p></o:p></span></font></p>
<p class=3DMsoNormal =
style=3D'mso-layout-grid-align:none;text-autospace:none'><span
class=3DGramE><font size=3D1 face=3DArial><span lang=3DEN-US =
style=3D'font-size:9.0pt;
font-family:Arial;mso-font-kerning:0pt'>to</span></font></span><font =
size=3D1
face=3DArial><span lang=3DEN-US =
style=3D'font-size:9.0pt;font-family:Arial;
mso-font-kerning:0pt'> change the MAC address of a network card in =
NetBSD
(since some ISPs would use <o:p></o:p></span></font></p>
<p class=3DMsoNormal =
style=3D'mso-layout-grid-align:none;text-autospace:none'><span
class=3DGramE><font size=3D1 face=3DArial><span lang=3DEN-US =
style=3D'font-size:9.0pt;
font-family:Arial;mso-font-kerning:0pt'>the</span></font></span><font =
size=3D1
face=3DArial><span lang=3DEN-US =
style=3D'font-size:9.0pt;font-family:Arial;
mso-font-kerning:0pt'> NIC's MAC address to authenticate a service), =
let's say card
i82557 of Intel. <o:p></o:p></span></font></p>
<p class=3DMsoNormal =
style=3D'mso-layout-grid-align:none;text-autospace:none'><font
size=3D1 face=3DArial><span lang=3DEN-US =
style=3D'font-size:9.0pt;font-family:Arial;
mso-font-kerning:0pt'>I tried to study the source code for i82557 to =
know the
location of the register on <o:p></o:p></span></font></p>
<p class=3DMsoNormal =
style=3D'mso-layout-grid-align:none;text-autospace:none'><span
class=3DGramE><font size=3D1 face=3DArial><span lang=3DEN-US =
style=3D'font-size:9.0pt;
font-family:Arial;mso-font-kerning:0pt'>the</span></font></span><font =
size=3D1
face=3DArial><span lang=3DEN-US =
style=3D'font-size:9.0pt;font-family:Arial;
mso-font-kerning:0pt'> NIC to write, but I am not that good enough to
understand those codes, <o:p></o:p></span></font></p>
<p class=3DMsoNormal =
style=3D'mso-layout-grid-align:none;text-autospace:none'><span
class=3DGramE><font size=3D1 face=3DArial><span lang=3DEN-US =
style=3D'font-size:9.0pt;
font-family:Arial;mso-font-kerning:0pt'>especially</span></font></span><f=
ont
size=3D1 face=3DArial><span lang=3DEN-US =
style=3D'font-size:9.0pt;font-family:Arial;
mso-font-kerning:0pt'> to write with ioctl. I also have an idea of =
modifying the
command ‘ifconfig’ <o:p></o:p></span></font></p>
<p class=3DMsoNormal =
style=3D'mso-layout-grid-align:none;text-autospace:none'><span
class=3DGramE><font size=3D1 face=3DArial><span lang=3DEN-US =
style=3D'font-size:9.0pt;
font-family:Arial;mso-font-kerning:0pt'>so</span></font></span><font =
size=3D1
face=3DArial><span lang=3DEN-US =
style=3D'font-size:9.0pt;font-family:Arial;
mso-font-kerning:0pt'> that it can set the hardware address as the =
linux's version
of ifconfig does. <o:p></o:p></span></font></p>
<p class=3DMsoNormal =
style=3D'mso-layout-grid-align:none;text-autospace:none'><font
size=3D1 face=3DArial><span lang=3DEN-US =
style=3D'font-size:9.0pt;font-family:Arial;
mso-font-kerning:0pt'>But again, I was knocked down with =
ioctl.<o:p></o:p></span></font></p>
<p class=3DMsoNormal =
style=3D'text-indent:24.0pt;mso-layout-grid-align:none;
text-autospace:none'><font size=3D1 face=3DArial><span lang=3DEN-US =
style=3D'font-size:
9.0pt;font-family:Arial;mso-font-kerning:0pt'>I am not sure how much =
effort it
would take to write a patch for ifconfig <o:p></o:p></span></font></p>
<p class=3DMsoNormal =
style=3D'mso-layout-grid-align:none;text-autospace:none'><span
class=3DGramE><font size=3D1 face=3DArial><span lang=3DEN-US =
style=3D'font-size:9.0pt;
font-family:Arial;mso-font-kerning:0pt'>with</span></font></span><font =
size=3D1
face=3DArial><span lang=3DEN-US =
style=3D'font-size:9.0pt;font-family:Arial;
mso-font-kerning:0pt'> -H option to set MAC address or any other =
possible way
one can provide me with.<o:p></o:p></span></font></p>
<p class=3DMsoNormal =
style=3D'mso-layout-grid-align:none;text-autospace:none'><font
size=3D1 face=3DArial><span lang=3DEN-US =
style=3D'font-size:9.0pt;font-family:Arial;
mso-font-kerning:0pt'><o:p> </o:p></span></font></p>
<p class=3DMsoNormal =
style=3D'mso-layout-grid-align:none;text-autospace:none'><font
size=3D1 face=3DArial><span lang=3DEN-US =
style=3D'font-size:9.0pt;font-family:Arial;
mso-font-kerning:0pt'>Thanks.<o:p></o:p></span></font></p>
<p class=3DMsoNormal =
style=3D'mso-layout-grid-align:none;text-autospace:none'><font
size=3D1 face=3DArial><span lang=3DEN-US =
style=3D'font-size:9.0pt;font-family:Arial;
mso-font-kerning:0pt'><o:p> </o:p></span></font></p>
<p class=3DMsoNormal =
style=3D'mso-layout-grid-align:none;text-autospace:none'><font
size=3D1 face=3DArial><span lang=3DEN-US =
style=3D'font-size:9.0pt;font-family:Arial;
mso-font-kerning:0pt'>Benson<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
lang=3DEN-US
style=3D'font-size:12.0pt'><o:p> </o:p></span></font></p>
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