[lvs-users] keepalived: LVS-DR split brain w/firewalls up

[Gerry Reno]

Joseph Mack NA3T wrote:
> how have you stopped the two directors from talking to each
> other?
>
> Joe
>   
I was hoping someone could tell me. I just brought up the firewalls on 
the directors and instant split brain. What port/protocol do the 
directors use to communicate with each other? I understand how the 
traffic is routed that comes into the directors but does the firewall 
need some settings so the directors can talk? Don't they just use some 
type of multicast? Can the firewall block this? Sorry if this is 
something really basic that I'm missing here. I'm not a network expert.

Gerry