请教 ipsec问题

navy

请教 ipsec问题
各位高手:
我目前正在REDHAT EL4下面试验搭建lan-lan的IPSEC的VPN，已经按照其他高手推荐的文档配置完成
但是在启动ifup IPSEC0时出现如下错误

[root@vpn ~]# ifdown ipsec0
RTNETLINK answers: No such process
[root@vpn ~]# ifup ipsec0
RTNETLINK answers: Network is unreachable
查看日志
tail /var/log/messages
Mar 18 15:51:29 localhost racoon: INFO: fe80::205:5dff:fe72:608a%eth1[500] used as isakmp port (fd=
Mar 18 15:51:29 localhost racoon: INFO: ::1[500] used as isakmp port (fd=9)
Mar 18 15:51:29 localhost racoon: INFO: 192.168.1.189[500] used as isakmp port (fd=10)
Mar 18 15:51:29 localhost racoon: INFO: 127.0.0.1[500] used as isakmp port (fd=11)
Mar 18 15:53:22 localhost sshd(pam_unix)[13813]: session opened for user root by (uid=0)
Mar 18 15:53:30 localhost racoon: INFO: unsupported PF_KEY message REGISTER
Mar 18 16:19:42 localhost sshd(pam_unix)[12456]: session closed for user root
Mar 18 16:19:42 localhost kernel: device eth1 left promiscuous mode
Mar 18 16:30:13 localhost smartd[5453]: Device: /dev/sda, Temperature changed -2 Celsius to 33 Celsius since last report
Mar 18 16:47:40 localhost racoon: INFO: unsupported PF_KEY message REGISTER
请问出现上述问题应该是那里的错误，谢谢

navy

自己顶一下，继续请教