访问真机不能转发

http://192.168.1.226/bs访问真机192.168.1.231:80 不能转发
[root@lvs1 ~]# ipvsadm -lcn用这命令看没转发
IPVS connection entries
pro expire state source virtual destination

[root@lvs1 ~]# tail -f /var/log/messages 看日志发现 IPVS: Service not defined

Oct 20 14:12:07 lvs1 Keepalived_healthcheckers: Adding service [192.168.1.231:80] to VS [192.168.1.226:80]
Oct 20 14:12:07 lvs1 Keepalived_healthcheckers: IPVS: Service not defined

出现IPVS: Service not defined是不是ipvsadm坏了？我换了另一台装ipvsadm才能转发。