Solaris Servers in LVS/DR and LVS/TUN Clusters
From LVSKB
Introduction
In the Solaris operating systems, ip addresses configured on the loopback interface will not participate the ARP protocol.
Disable ARP for VIP
In LVS/DR clusters, we can disable ARP for VIP on Solaris as follows:
ifconfig lo0:1 plumb ifconfig lo0:1 VIP/32 netmask 255.255.255.255 up
These two commands can be added just after configuring loopback command in the /etc/rc.S/S??network, so that VIP can be brought up after system boots up.