as4 作director,freebsd作realserver产生的问题

通过vmware启动as4系统,主备as4系统分别装在ip为192.168.1.100 和 192.168.1.101的xp系统上,在做好集群后,分别启动主备服务器的heartbeat,在主服务器上查看ipvsadm,显示如下:
IP Virtual Server version 1.2.0 (size=4096)
Prot LocalAddress:Port Scheduler Flags
-> RemoteAddress:Port Forward Weight ActiveConn InActConn
TCP 192.168.1.200:http rr
-> 192.168.1.252:http Route 1 24 5
其中http://192.168.1.252/index.html得到Test Page内容.
现在问题如下:
通过192.168.1.100 这台xp可以访问到http://192.168.1.200,得到Test Page内容,但在101或其它任何机器上都无法得到Test Page内容,不知道是什么原因.
ldirectord.cf 配置如下:
checktimeout=3
checkinterval=1
fallback=127.0.0.1:80
autoreload=yes
logfile="/var/log/ldirectord.log"
#logfile="local0"
quiescent=no

# A sample virual with a fallback that will override the gobal setting
virtual=192.168.1.200:80
real=192.168.1.175:80 gate
real=192.168.1.176:80 gate
real=192.168.1.252:80 gate
# real=192.168.6.6:80 gate
fallback=127.0.0.1:80 gate
service=http
request="/index.html"
receive="Test Page"
virtualhost=loadbalancer
scheduler=rr
#persistent=600
#netmask=255.255.255.255
protocol=tcp
不知道问题出在哪了,请帮忙分析下原因,谢谢.

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