How to use /etc/rc.conf with ifconfig_lagg

Ian FREISLICH ianf at clue.co.za
Tue Apr 22 05:45:12 UTC 2008


Daniel Eischen wrote:
> I'm trying to get a lagg interface up via standard /etc/rc.conf
> settings, but it just doesn't seem to be working.  Here's the
> respective settings:
> 
>    ifconfig_sis0="up"
>    ifconfig_sis1="up"
>    ifconfig_sis2="up"
>    cloned_interfaces="lagg0"
>    ifconfig_lagg0="inet 192.168.3.97 netmask 0xffffff80 \
>       laggproto failover laggport sis2 laggport sis0 laggport sis1"
> 
> I've also tried:
> 
>    ifconfig_lagg0="laggproto failover laggport sis2 laggport sis0 \
>       laggport sis1 inet 192.168.3.97 netmask 0xffffff80"
> 
> and without 'inet' as lagg(4) suggests:
> 
>    ifconfig_lagg0="laggproto failover laggport sis2 laggport sis0 \
>       laggport sis1 192.168.3.97 netmask 0xffffff80"
> 
> but nothing seems to work.  The lagg0 interface gets created
> and configured with failover and with all the failover ports
> correctly added, but the IP address and netmask do not get
> set.  I have to manually set them after the system boots.
> Without manually setting them, I get:

I've found this too with other cloned interfaces, vlans for me.  I
use the following trick to work around the problem of not being
able to set the address and other configuration at the same time:

ifconfig_vlan1000="vlandev em2 vlan 1000"
ifconfig_vlan1000_alias0="inet 10.0.0.1/24"

So for your case, I'd do:

ifconfig_lagg0="laggproto failover laggport sis2 laggport sis0 \
	laggport sis1"
ifconfig_lagg0_alias0="inet 192.168.3.97 netmask 0xffffff80"

I'm not sure why it doesn't work the way you'd expect to.

Ian

--
Ian Freislich



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