Date: Mon, 30 Jan 2017 13:19:24 +0100 From: "Nagy, Attila" <bra@fsn.hu> To: freebsd-net@freebsd.org Subject: Re: Interface cannot change link addresses - switching IP from one IF to another on a netbooted machine Message-ID: <ff03ad9e-1de9-1ad7-953e-86ff15cbe62f@fsn.hu> In-Reply-To: <578F4AB6.2090200@fsn.hu> References: <578F4AB6.2090200@fsn.hu>
next in thread | previous in thread | raw e-mail | index | archive | help
Hi,
Following up on this, placing the script into /etc/rc.conf.lagg and
configuring/including it in rc.conf with:
lagg_dev="lagg0"
lagg_devs="igb0 igb1 igb2 igb3"
Solves the issue.
if [ -n "${lagg_dev}" ]; then
/sbin/ifconfig "${lagg_dev}" create > /dev/null 2>&1
if [ $? -eq 0 ]; then
/sbin/mount -t tmpfs tmpfs /tmp
/bin/cp /rescue/ifconfig /tmp
addr=`kenv boot.netif.ip`
netmask=`kenv boot.netif.netmask`
bootif=`kenv boot.netif.name`
if_lagg_devs=`echo ${lagg_devs} | sed "s/ / laggport /g"`
for dev in ${lagg_devs}
do
/tmp/ifconfig ${dev} up
done
ifconfig ${lagg_dev} up
ifconfig ${lagg_dev} ${addr} netmask ${netmask} laggproto \
lacp laggport ${if_lagg_devs} up
ifconfig ${bootif} -alias ${addr}
/sbin/umount /tmp
fi
fi
On 07/20/2016 11:56 AM, Nagy, Attila wrote:
> Hi,
>
> I have several netbooted machines, which operate in this way:
> - the machine boots up from one interface (PXE, DHCP), for example igb0
> - during the boot, an rc script runs* which deletes the IP from igb0
> and creates the lagg interface with igb0, igb1 etc and sets the
> original IP on that interface (with a statically linked ifconfig)
> - normal booting continues from the lagg interface
>
> This has worked for years and broke somewhere in the lifecycle of
> 10-STABLE.
>
> Now I can't remove the IP address from the interface, ifconfig igb0
> delete gives:
> interface igb0 cannot change link addresses!
>
> Any ideas about how could I work around this?
>
> Basically I would like to switch the IP from one interface to another
> while running from an NFS root. (and this has worked before svn rev xxx)
>
> Thanks,
> _______________________________________________
> freebsd-net@freebsd.org mailing list
> https://lists.freebsd.org/mailman/listinfo/freebsd-net
> To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org"
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?ff03ad9e-1de9-1ad7-953e-86ff15cbe62f>