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I need to attribute static IPv6 addresses (not use autoconfigured addresses, and ignore router advertisements). This can be done as follows for a standard interface like eth0

iface eth0 inet6 static
  address myprefix:mysubnet::myip
  gateway myprefix:mysubnet::mygatewayip
 netmask 64
 pre-up /sbin/sysctl -q -w net.ipv6.conf.$IFACE.autoconf=0
 pre-up /sbin/sysctl -q -w net.ipv6.conf.$IFACE.accept_ra=0

However, how can this be done for bonded interfaces? using the "all" interface does not work.

System is Ubuntu 10.04, 2.6.24-24-server. (12.04 seems to be the same).

If one uses the above sysctl command for the bond0, the networking hangs on boot, because /proc/sys/net/ipv6/conf/bond0 does not yet exist and cannot be written to.

Once the system has booted /proc/sys/net/ipv6/conf/bond0 exists, so one solution after booting is to add the following to /etc/rc.local:

 /sbin/sysctl -q -w net.ipv6.conf.bond0.autoconf=0
 /sbin/sysctl -q -w net.ipv6.conf.bond0.accept_ra=0
 /etc/init.d/networking restart

and this has the desired effect, the autoconfig v6 address disappears. Seems like a bit of a hack though, are there better solutions?

1 Answer 1

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Have you tried

iface bond0 inet6 static
    address myprefix:mysubnet::myip
    gateway myprefix:mysubnet::mygatewayip
    netmask 64

    post-up /sbin/sysctl -q -w net.ipv6.conf.bond0.autoconf=0
    post-up /sbin/sysctl -q -w net.ipv6.conf.bond0.accept_ra=0

If that does not work, I'd probably try it with a script in /etc/network/if-up.d/

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