[Bug 823366] Re: bond_primary is ignored in /etc/network/interfaces

[Steve Langasek]

> but your example does not do this (I don't think this has anything to do with
> the problem but I mention it just in case).

Actually, that does prevent your bond_mode, bond_arp_* settings from
being applied; unfortunately you do have to reproduce all the options
between all the interfaces.

> Since bond0 no longer has an "auto bond0" stanza, I
> see nothing in if-pre-up.d/ifenslave which would bring up bond0.

You didn't show the 'auto bond0' in the original post, so I didn't
include it in my counterexample. :)  I think adding this back should be
enough to fix the problem.

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https://bugs.launchpad.net/bugs/823366

Title:
  bond_primary is ignored in /etc/network/interfaces

Status in “ifenslave-2.6” package in Ubuntu:
  Incomplete

Bug description:
  The bond_primary declaration in /etc/network/interfaces is not working anymore in 10.04.3.
  Setting this value has no influence, it's always set to the lower interface number or none

  Workaround:

  iface bond0 inet static
    bond_slaves eth2 eth0
    bond_primary eth2
    bond_mode 1
    bond_arp_interval 2000
    bond_arp_ip_target 192.168.100.1
    #bond_num_grat_arp 10
    up echo eth2 > /sys/class/net/bond0/bonding/primary
    up echo 10 > /sys/class/net/bond0/bonding/num_grat_arp
    address  192.168.100.50
    netmask 255.255.255.192
    gateway 192.168.100.1

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