keepalived vrrp multicast mac config scratch pad

default settings (gentoo)

# for i in /proc/sys/net/ipv4/conf/*; do printf "$i "; cat $i/arp_* | tr '\n' ' '; echo; done
/proc/sys/net/ipv4/conf/all 0 0 0 0 0 
/proc/sys/net/ipv4/conf/bond0 0 0 0 0 0 
/proc/sys/net/ipv4/conf/default 0 0 0 0 0 
/proc/sys/net/ipv4/conf/eql 0 0 0 0 0 
/proc/sys/net/ipv4/conf/eth0 0 0 0 0 0 
/proc/sys/net/ipv4/conf/eth1 0 0 0 0 0 
/proc/sys/net/ipv4/conf/eth2 0 0 0 0 0 
/proc/sys/net/ipv4/conf/eth3 0 0 0 0 0 
/proc/sys/net/ipv4/conf/eth4 0 0 0 0 0 
/proc/sys/net/ipv4/conf/eth5 0 0 0 0 0 
/proc/sys/net/ipv4/conf/gre0 0 0 0 0 0 
/proc/sys/net/ipv4/conf/gretap0 0 0 0 0 0 
/proc/sys/net/ipv4/conf/ip6tnl0 0 0 0 0 0 
/proc/sys/net/ipv4/conf/ip_vti0 0 0 0 0 0 
/proc/sys/net/ipv4/conf/lo 0 0 0 0 0 
/proc/sys/net/ipv4/conf/sdla0 0 0 0 0 0 
/proc/sys/net/ipv4/conf/sit0 0 0 0 0 0 
/proc/sys/net/ipv4/conf/teql0 0 0 0 0 0 
/proc/sys/net/ipv4/conf/tunl0 0 0 0 0 0 

check point firewall (give multicast mac in response to arp requests for vrrp IPs)

[Expert@chkpfw1:0]# for i in /proc/sys/net/ipv4/conf/*; do printf "$i "; cat $i/arp_* | tr '\n' ' '; echo; done
/proc/sys/net/ipv4/conf/all 0 2 1 0 
/proc/sys/net/ipv4/conf/default 0 0 1 0 
/proc/sys/net/ipv4/conf/eth0 0 0 1 0 
/proc/sys/net/ipv4/conf/eth1 0 0 1 0 
/proc/sys/net/ipv4/conf/eth2 0 0 1 0 
/proc/sys/net/ipv4/conf/eth3 0 0 1 0 
/proc/sys/net/ipv4/conf/lo 0 0 0 0