On 15.04.2016 11:33, Mimiko wrote:
Hello.
A server has 3 interfaces: eth0, eth1, eth2. I've setup a bond12 with
mode adaptive-alb with eth1 and eth2. Now interfaces have:
auto eth0
iface eth0 inet static
address x.x.x.1
netmask 255.255.255.0
auto eth1
iface eth1 inet manual
auto eth2
iface eth2 inet manual
auto bond12
iface bond12 inet static
address x.x.x.2
netmask 255.255.255.0
bond-slaves eth1 eth2
bond-mode balance-alb
All interfaces are connected to 3 different switches which are on same
LAN (switches are interconnected).
The problem is that when I do from another computer:
arping -c 1 -I eth0 x.x.x.1
or
arping -c 1 -I eth0 x.x.x.2
in both cases I receive two mac addresses: one for eth0 and another for
currently active interface in the bond. This confuses clients and there
are problem when accessing servicing on incorrect interface regarding
the IP.
mac for x.x.x.1 must be of the eth0
mac for x.x.x.2 must be of the currently active interface in the bond
What could be the problem?
Also on start-up, bond0 is also created with no slaves. Why it is created?
Thank you.
I've just found the problem. I read this site:
http://kb.linuxvirtualserver.org/wiki/Using_arp_announce/arp_ignore_to_disable_ARP
And use:
echo 1 > /proc/sys/net/ipv4/conf/all/arp_ignore
This resolves the problem. On windows by default is not to reply with
the mac of the not received interface.
