Re: vmac support

On 25.02.2014 22:43, Lennart Sorensen wrote:
> On Tue, Feb 25, 2014 at 09:15:37PM +0100, Sander Klein wrote:
>> Is there or can anyone provide me with a manual how to use the vmac
>> feature?
>> 
>> I've been trying to get it working and I somehow can't get it working.
>> It looks like the mac address of the vrrp interface gets spilled on 
>> the
>> network from both vrrp hosts at the same time.
>> 
>> I've used NOTE_vrrp_vmax.txt to create my setup but I've got a feeling
>> it's missing something.
> 
> Which version are you using?

I'm using keepalived 1.2.12 on kernel 3.2.54 with Debian Wheezy.

The sysctl settings are:

net.ipv4.conf.all.arp_filter = 0
net.ipv4.conf.default.arp_filter = 0
net.ipv4.conf.all.arp_ignore = 1
net.ipv4.conf.default.arp_ignore = 1
net.ipv4.conf.all.arp_announce = 2
net.ipv4.conf.default.arp_announce = 2

And I've got a script which sets some settting on the vrrp interface 
when going to master like:

sysctl -w net.ipv4.conf.vrrp/18.arp_filter=0
sysctl -w net.ipv4.conf.vrrp/18.accept_local=1

The keepalived config I use is quite simple:

vrrp_instance VI_1 {
	state MASTER
	interface eth0
	virtual_router_id 18
	priority 100
	advert_int 1
	use_vmac
	vmac_xmit_base
	authentication {
		auth_type PASS
		auth_pass somepass
	}
	virtual_ipaddress {
		x.x.x.x
	}
	track_interface {
		eth0
	}
	track_script {
		chk_somecheck
	}
	notify_master "/etc/keepalived/vmac.sh"
}

Everything starts up fine. I see the vrrp interface created on both the 
loadbalancers. But it seems like connections go to both loadbalancers 
sometimes.

If I ping the VIP and the second loadbalancer comes online then I 
receive a couple of (DUP!)'s from the ping utility.

Greets,

Sander

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