Public bug reported: I am Using Ubuntu 12.04.5 LTS and something is wrong with the bonding module or ifenslave. After booting one of the eth-interfaces has a diffent mac-address, not proper to the bond.
This are my settings: /etc/network/interfaces auto bond0 iface bond0 inet static address 192.168.2.59 netmask 255.255.255.0 network 192.168.2.0 broadcast 192.168.2.255 gateway 192.168.2.99 dns-nameservers 192.168.2.100 slaves eth0 eth1 bond-mode 4 bond-miimon 100 bond-updelay 200 bond-downdelay 200 auto eth0 iface eth0 inet manual hwaddress ether 00:16:e6:59:57:30 bond-master bond0 auto eth1 iface eth1 inet manual hwaddress ether 00:08:54:4f:e7:4c bond-master bond0 (I tried to put bond0 at the end of config file, but this do nothing) /etc/modules: bonding Result of ifconfig with the wrong mac-address of eth1: bond0 Link encap:Ethernet Hardware Adresse 00:16:e6:59:57:30 eth0 Link encap:Ethernet Hardware Adresse 00:16:e6:59:57:30 eth1 Link encap:Ethernet Hardware Adresse 00:08:54:4f:e7:4c I could dis-bond this interface eth1 and join the bond with ifenslave again. This fixed the problem at runtime. But all mac-address of this bond should be the same at boot time. (Remeber, I used bond mode 4!) ** Affects: ifenslave (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1353522 Title: Problem with interface and bonding To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ifenslave/+bug/1353522/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs