On Sun, 2010-03-28 at 14:28 +0100, Cyrus wrote: > That's what I try and do. > I edit the /etc/sysconfig/network-scripts/ifcfg-lo:0 file and add the VIP > (174.121.60.28) as the IP address. > > DEVICE=lo:0 > IPADDR=174.121.60.28 > NETMASK=255.255.255.248 > ONBOOT=yes > NAME=loopback
If you configure the loopback adapter like this. RedHat's network scripts will always send an arp broadcast first, which is exactly what you don't want. Instead, put something like this in your /etc/rc.local file: # solve the ARP problem echo 1 > /proc/sys/net/ipv4/conf/lo/arp_ignore echo 1 > /proc/sys/net/ipv4/conf/eth0/arp_ignore echo 2 > /proc/sys/net/ipv4/conf/lo/arp_announce echo 2 > /proc/sys/net/ipv4/conf/eth0/arp_announce # Bring up loopback interface ifconfig lo:0 174.121.60.28 broadcast 174.121.60.28 netmask 0xffffffff up # Make sure traffic destined for the VIP gets handled by the loopback adapter route add -host 174.121.60.28 device lo:0 -- Léon _______________________________________________ Please read the documentation before posting - it's available at: http://www.linuxvirtualserver.org/ LinuxVirtualServer.org mailing list - lvs-users@LinuxVirtualServer.org Send requests to lvs-users-requ...@linuxvirtualserver.org or go to http://lists.graemef.net/mailman/listinfo/lvs-users