Gentoo Archives: gentoo-user

From: "Sergey A. Kobzar" <sergey.kobzar@××××.ru>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] Re: MAC addresses
Date: Thu, 30 Apr 2009 15:36:20
Message-Id: 1259882194.20090430183619@mail.ru
In Reply to: [gentoo-user] Re: MAC addresses by James
1 Thursday, April 30, 2009, 6:22:27 PM, James wrote:
2
3 > Sergey A. Kobzar <sergey.kobzar <at> mail.ru> writes:
4
5
6 >> LinkSys switch. It has 2 NICs onboard:
7
8 >> How is it possible?
9
10
11 > Often the MAC is printed on the nic. Some (few) devices
12 > have MAC set in firmware and it is hackable.
13 > MAC numbering is often suspect in a variety of
14 > circumstances. My suggestion is that
15 > you surf the open source tools to find something
16 > that reveals deeper information about your MAC
17 > anomalies. Lots of stuff in:
18
19
20 > /usr/portage/net-analyzer/
21
22
23 > Here's one:
24
25
26 > net-analyzer/macchanger
27
28 > Description: Utility for viewing/manipulating
29 > the MAC address of network interfaces
30
31
32 James, thank you for the useful tip. The output of macchanger:
33
34 # macchanger eth1
35 Current MAC: 00:15:17:1a:6e:6d (Intel Corporate)
36 Faked MAC: 00:15:17:1a:6e:6e (Intel Corporate)
37
38
39 # macchanger eth0
40 Current MAC: 00:15:17:1a:6e:6c (Intel Corporate)
41 Faked MAC: 00:15:17:1a:6e:6d (Intel Corporate)
42
43
44 How is it possible? I thought NIC has one MAC only.What does mean
45 'Faked MAC'?
46
47
48
49 > goodluck,
50
51
52 > James
53
54
55
56 --
57 Sergey

Replies

Subject Author
Re: [gentoo-user] Re: MAC addresses Anthony Metcalf <nevyn@××××××××××.uk>