Its not NetworkManager. According to the NetworkManager.conf manpage the no-auto-default has nothing to do with it.
Doing a Google search for that specific MAC address aa:00:04:00:0a:04 tells a different story. http://www.fantaghost.com/2010/06/eth0-mac-address-fixed-on- aa0004000a04/ Apparently installed DECnet software can do this on your system. I have found libdnet, dnet-common and xtrans-dev on my system. But don't ask me how it got there. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/878188 Title: Network Manager assigns incorrect MAC address to eth devices Status in “network-manager” package in Ubuntu: Confirmed Bug description: After upgrading from 11.04 to 11.10, my MAC address for my Ethernet connection was changed to a default value. My actual MAC address for the device is not used. I have confirmed this by upgrading two separate laptops, and both had their Ethernet device MAC addressed changed to the same default value. Neither were able to connect to a restricted LAN without adding this (new) MAC address to the MAC filters. The first laptop uses a wireless connection (using broadcom restricted drivers), and the second laptop uses wired Ethernet connection. When booting to recovery terminal, the MAC address is the correct (original) value. NetworkManager.conf contains the following: no-auto-default=aa:00:04:00:0a:04 I removed this, but this did not change anything. Both laptops now have a MAC address of aa:00:04:00:0a:04 ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: network-manager 0.9.1.90-0ubuntu4 ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4 Uname: Linux 3.0.0-12-generic i686 NonfreeKernelModules: wl ApportVersion: 1.23-0ubuntu3 Architecture: i386 Date: Wed Oct 19 08:19:58 2011 IfupdownConfig: auto lo iface lo inet loopback InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007) IpRoute: default via 192.168.1.1 dev eth1 proto static 169.254.0.0/16 dev eth1 scope link metric 1000 192.168.1.0/24 dev eth1 proto kernel scope link src 192.168.1.102 metric 2 ProcEnviron: PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: network-manager UpgradeStatus: Upgraded to oneiric on 2011-10-14 (5 days ago) mtime.conffile..etc.NetworkManager.NetworkManager.conf: 2011-10-19T07:59:32.227864 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/878188/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
