I am also hitting this issue with a very basic bonding example:
$ cat /etc/network/interfaces auto lo iface lo inet loopback
auto eth0 iface eth0 inet manual bond-master bond0 bond-primary eth0
auto eth1 iface eth1 inet manual bond-master bond0
auto bond0 iface bond0 inet dhcp bond-mode active-backup bond-miimon 100 bond-slaves none
$ ip a 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eth0: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master bond0 state UP group default qlen 1000 link/ether 52:54:00:76:06:28 brd ff:ff:ff:ff:ff:ff inet6 fe80::5054:ff:fe76:628/64 scope link valid_lft forever preferred_lft forever 3: eth1: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master bond0 state UP group default qlen 1000 link/ether 52:54:00:76:06:28 brd ff:ff:ff:ff:ff:ff inet6 fe80::5054:ff:fe76:628/64 scope link valid_lft forever preferred_lft forever 4: bond0: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default link/ether 52:54:00:76:06:28 brd ff:ff:ff:ff:ff:ff inet 192.168.122.224/24 brd 192.168.122.255 scope global bond0 valid_lft forever preferred_lft forever inet6 fe80::5054:ff:fe76:628/64 scope link tentative dadfailed valid_lft forever preferred_lft forever
/var/log/kern.log: Mar 19 21:52:49 lp1280362 kernel: [ 4.043238] bonding: Ethernet Channel Bonding Driver: v3.7.1 (April 27, 20 11) Mar 19 21:52:49 lp1280362 kernel: [ 4.264717] kvm: Nested Virtualization enabled Mar 19 21:52:49 lp1280362 kernel: [ 4.373163] ppdev: user-space parallel port driver Mar 19 21:52:49 lp1280362 kernel: [ 4.581661] bonding: bond0: Setting MII monitoring interval to 100. Mar 19 21:52:49 lp1280362 kernel: [ 4.592622] bonding: bond0: setting mode to active-backup (1). Mar 19 21:52:49 lp1280362 kernel: [ 4.593091] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready Mar 19 21:52:49 lp1280362 kernel: [ 4.661884] bonding: bond0: Adding slave eth1. Mar 19 21:52:49 lp1280362 kernel: [ 4.662189] 8139cp 0000:00:07.0 eth1: link up, 100Mbps, full-duplex, lpa 0 x05E1 Mar 19 21:52:49 lp1280362 kernel: [ 4.662363] bonding: bond0: making interface eth1 the new active one. Mar 19 21:52:49 lp1280362 kernel: [ 4.664071] bonding: bond0: enslaving eth1 as an active interface with an up link. Mar 19 21:52:49 lp1280362 kernel: [ 4.664076] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready Mar 19 21:52:49 lp1280362 kernel: [ 4.666837] bonding: bond0: Adding slave eth0. Mar 19 21:52:49 lp1280362 kernel: [ 4.667201] bonding: bond0: enslaving eth0 as a backup interface with an u p link. Mar 19 21:52:49 lp1280362 kernel: [ 4.680131] bonding: bond0: Setting eth0 as primary slave. Mar 19 21:52:49 lp1280362 kernel: [ 4.680132] bonding: bond0: making interface eth0 the new active one. Mar 19 21:52:49 lp1280362 kernel: [ 4.752194] IPv6: bond0: IPv6 duplicate address fe80::5054:ff:fe76:628 detected!
I am also hitting this issue with a very basic bonding example:
$ cat /etc/network/ interfaces
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet manual
bond-master bond0
bond-primary eth0
auto eth1
iface eth1 inet manual
bond-master bond0
auto bond0
iface bond0 inet dhcp
bond-mode active-backup
bond-miimon 100
bond-slaves none
$ ip a UP,LOWER_ UP> mtu 65536 qdisc noqueue state UNKNOWN group default MULTICAST, SLAVE,UP, LOWER_UP> mtu 1500 qdisc pfifo_fast master bond0 state UP group default qlen 1000 ff:fe76: 628/64 scope link MULTICAST, SLAVE,UP, LOWER_UP> mtu 1500 qdisc pfifo_fast master bond0 state UP group default qlen 1000 ff:fe76: 628/64 scope link MULTICAST, MASTER, UP,LOWER_ UP> mtu 1500 qdisc noqueue state UP group default ff:fe76: 628/64 scope link tentative dadfailed
1: lo: <LOOPBACK,
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,
link/ether 52:54:00:76:06:28 brd ff:ff:ff:ff:ff:ff
inet6 fe80::5054:
valid_lft forever preferred_lft forever
3: eth1: <BROADCAST,
link/ether 52:54:00:76:06:28 brd ff:ff:ff:ff:ff:ff
inet6 fe80::5054:
valid_lft forever preferred_lft forever
4: bond0: <BROADCAST,
link/ether 52:54:00:76:06:28 brd ff:ff:ff:ff:ff:ff
inet 192.168.122.224/24 brd 192.168.122.255 scope global bond0
valid_lft forever preferred_lft forever
inet6 fe80::5054:
valid_lft forever preferred_lft forever
/var/log/kern.log: NETDEV_ UP): bond0: link is not ready NETDEV_ CHANGE) : bond0: link becomes ready ff:fe76: 628 detected!
Mar 19 21:52:49 lp1280362 kernel: [ 4.043238] bonding: Ethernet Channel Bonding Driver: v3.7.1 (April 27, 20
11)
Mar 19 21:52:49 lp1280362 kernel: [ 4.264717] kvm: Nested Virtualization enabled
Mar 19 21:52:49 lp1280362 kernel: [ 4.373163] ppdev: user-space parallel port driver
Mar 19 21:52:49 lp1280362 kernel: [ 4.581661] bonding: bond0: Setting MII monitoring interval to 100.
Mar 19 21:52:49 lp1280362 kernel: [ 4.592622] bonding: bond0: setting mode to active-backup (1).
Mar 19 21:52:49 lp1280362 kernel: [ 4.593091] IPv6: ADDRCONF(
Mar 19 21:52:49 lp1280362 kernel: [ 4.661884] bonding: bond0: Adding slave eth1.
Mar 19 21:52:49 lp1280362 kernel: [ 4.662189] 8139cp 0000:00:07.0 eth1: link up, 100Mbps, full-duplex, lpa 0
x05E1
Mar 19 21:52:49 lp1280362 kernel: [ 4.662363] bonding: bond0: making interface eth1 the new active one.
Mar 19 21:52:49 lp1280362 kernel: [ 4.664071] bonding: bond0: enslaving eth1 as an active interface with an
up link.
Mar 19 21:52:49 lp1280362 kernel: [ 4.664076] IPv6: ADDRCONF(
Mar 19 21:52:49 lp1280362 kernel: [ 4.666837] bonding: bond0: Adding slave eth0.
Mar 19 21:52:49 lp1280362 kernel: [ 4.667201] bonding: bond0: enslaving eth0 as a backup interface with an u
p link.
Mar 19 21:52:49 lp1280362 kernel: [ 4.680131] bonding: bond0: Setting eth0 as primary slave.
Mar 19 21:52:49 lp1280362 kernel: [ 4.680132] bonding: bond0: making interface eth0 the new active one.
Mar 19 21:52:49 lp1280362 kernel: [ 4.752194] IPv6: bond0: IPv6 duplicate address fe80::5054: