没有局域网环境，全是公网IP可以做LVS吗，该如何做了！请大家赐教！

现在有3台服务器，各有一个公网IP地址。IP地址形式如下：
IP1：122.224.224.001
IP2：122.224.224.002
IP3：122.224.224.003
我想用IP1做主LVS(不做备LVS),
IP2和IP3两台服务器为两个tomcat WEB服务节点。配置上有什么特殊的吗？
我按以下的方法做没有成功：
1、在IP1上安装：
keepalived-1.1.15-7.1
ipvsadm-1.24-123.2
linux-554e:/usr # rpm -ivh keepalived-1.1.15-7.1.i586.rpm
Preparing... ########################################### [100%]
1:keepalived ########################################### [100%]
keepalived 0:off 1:off 2:off 3:on 4:off 5:on 6:off
linux-554e:/usr # rpm -ivh ipvsadm-1.24-123.2.i586.rpm
Preparing... ########################################### [100%]
1:ipvsadm ########################################### [100%]
Updating etc/sysconfig/ipvsadm...
2 配置文件：/etc/keepalived/keepalived.conf
global_defs {
notification_email {
acassen@firewall.loc
failover@firewall.loc
sysadmin@firewall.loc
}
notification_email_from Alexandre.Cassen@firewall.loc
smtp_server 127.0.0.1
smtp_connect_timeout 30
router_id LVS_DEVEL
}
vrrp_instance VI_1 {
state MASTER
interface eth0
virtual_router_id 51
priority 100
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
122.224.224.001
}
}

virtual_server 122.224.224.001 8888 {
delay_loop 6
lb_algo wrr
lb_kind DR
nat_mask 255.255.255.0
persistence_timeout 50
protocol TCP

real_server 122.224.224.002 8888 {
weight 2
TCP_CHECK {
connect_port 8888
connect_timeout 15
nb_get_retry 3
delay_before_retry 3
}
}

real_server 122.224.224.003 8888 {
weight 1
TCP_CHECK {
connect_port 8888
connect_timeout 15
nb_get_retry 3
delay_before_retry 3
}
}
}
3 启动 lvs:~ # rckeepalived start
启动正常
如下：
linux-554e:/etc/keepalived # ps -ef |grep keep
root 13820 1 0 21:45 ? 00:00:00 /usr/sbin/keepalived -D
root 13821 13820 0 21:45 ? 00:00:00 /usr/sbin/keepalived -D
root 13822 13820 0 21:45 ? 00:00:00 /usr/sbin/keepalived -D
4、配置WEB服务器IP2和IP3
修改文件/etc/sysctl.conf添加以下内容：
net.ipv4.conf.eth0.arp_ignore = 1
net.ipv4.conf.eth0.arp_announce = 2
net.ipv4.conf.all.arp_ignore = 1
net.ipv4.conf.all.arp_announce = 2
运行 sysctl -p
修改文件/etc/sysconfig/network/ifcfg-lo添加以下内容
IPADDR_0='122.224.224.001'
NETMASK_0='255.255.255.255'
LABEL_0='0'
运行 rcnetwork restart
一切正常

我现在打开浏览器输入：http://122.224.224.001:8888，理论上应当将服务重定向到http://122.224.224.002:8888或http://122.224.224.002:8888，但是却无法访问，没有重定向成功。

我在IP1上执行ipvsadm -lcn，有如下结果
linux-554e:/etc/keepalived # ipvsadm -lcn
IPVS connection entries
pro expire state source virtual destination
TCP 00:56 SYN_RECV 183.128.209.247:2909 122.224.224.001:8888 122.224.224.002:8888
TCP 00:47 NONE 183.128.209.247:0 122.224.224.001:8888 122.224.224.002:8888
TCP 00:57 SYN_RECV 183.128.209.247:2910 122.224.224.001:8888 122.224.224.002:8888

我在IP1上执行ipvsadm -l，有如下结果
linux-554e:/etc/keepalived # ipvsadm -l
IP Virtual Server version 1.2.1 (size=4096)
Prot LocalAddress:Port Scheduler Flags
-> RemoteAddress:Port Forward Weight ActiveConn InActConn
TCP linux-554e.site:ddi-tcp-1 wrr persistent 50
-> 122.224.224.002:ddi-tcp-1 Route 2 0 2
-> 122.224.224.003:ddi-tcp-1 Route 1 0 0

我是初次配置LVS，请问各位大侠，我应当如何来配置，才能使我的LVS生效呢！