Re: VRRP: how to move specific MAC from one router to the other on failover?

Hello Andras,

You can use the use_vmac to have a virtual interface with a VRRP mac.

You can find example templates in the beta branch of Keepalived: https://github.com/acassen/keepalived/blob/beta/tools/json_tracking/template_vrrp_ins
tance

Regards,
On Tue, 2018-04-10 at 17:13 +0200, Andras Korn wrote:
> Hi,
> 
> apologies if support questions are off-topic on this list; I tried IRC
> first, but the channel topic on freenode said to use the mailing list.
> 
> I'm new to keepalived. I'm building a redundant router from two Linux boxes;
> in a basic setup, everything works nicely.
> 
> My problem is that the next hop upstream router has a static ARP table; it
> ignores the gratuitous ARP replies keepalived sends. The only way of making
> it talk to my backup router is to move the MAC address it has in its ARP
> table from the master to the backup on failover.
> 
> What's a good way of doing this? ebtables NAT? Or use a script to set up a
> macvlan interface on the master, with the requisite MAC address?
> 
> (I thought use_vmac would be a mechanism for this, but apparently it's not.)
> 
> Thanks!
> 
> Andras
> 
-- 
Damien Clabaut
R&D vRouter
OVH
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