root pts/1 h851_service Jul 18 16:34 - 16:36 (00:01) root pts/1 10.20.10.174 Jul 17 16:47 - 23:18 (06:31) root pts/1 10.20.10.174 Jul 17 08:41 - 14:18 (05:37) root pts/1 10.20.10.174 Jul 16 18:00 - 18:02 (00:02) root dtremote 10.20.10.41:1 Jul 16 16:58 - 17:19 (00:20) root pts/1 10.20.10.41 Jul 16 16:48 - 16:55 (00:07) root lft0 Jul 16 16:28 - 17:03 (11+00:34) root pts/0 10.10.20.65 Jul 16 16:25 - 16:26 (00:00) root pts/0 10.20.10.24 May 22 09:28 - 09:29 (00:00) root pts/0 10.20.10.77 May 16 15:43 - 15:43 (00:00) root pts/0 10.10.10.33 root pts/0 10.20.10.33 root pts/0 10.20.10.33 root lft0 reboot ~ shutdown pts/0 root lft0 root pts/0 h851_stby root pts/0 h851_stby root pts/0 h851_stby root lft0 reboot ~ shutdown lft0 root lft0 reboot ~ reboot ~ shutdown lft0 root lft0 reboot ~ shutdown lft0 oracle ftp 10.20.10.28 \
shutdown lft0 oracle ftp 10.20.10.28 root pts/2 10.10.20.15 oracle ftp 10.20.10.28 oracle ftp 10.20.10.28 oracle ftp 10.20.10.28 oracle ftp 10.20.10.28 oracle ftp 10.20.10.28 oracle pts/1 10.20.10.60 root pts/1 10.0.1.199 root pts/1 10.0.1.199 root pts/1 10.0.1.199 root pts/1 10.0.1.199 root pts/1 10.0.1.199 Apr 26 23:26 - 23:28 (00:02) Apr 26 10:04 - 10:08 (00:04) Apr 25 09:51 - 11:31 (01:39)
Apr 06 10:14 - 16:19 (101+06:05) Apr 06 10:09 Apr 06 10:00
Apr 06 09:45 - 10:00 (00:14) Aug 25 11:05 - 11:05 (00:00) Aug 21 15:07 - 15:24 (00:17) Aug 21 10:53 - 11:00 (00:06) Jul 25 19:41 - 10:15 (203+14:33) Jul 25 19:37 Jul 25 14:56
Jun 22 11:42 - 14:55 (33+03:13) Jun 21 12:29 Apr 28 10:54 Apr 28 10:28
Apr 28 10:27 - 10:28 (00:01) Apr 28 10:23 Apr 28 09:56
Apr 27 08:58 - 08:58 (00:00) Apr 28 09:56
Apr 27 08:58 - 08:58 (00:00) Apr 26 10:48 - 10:53 (00:05) Apr 26 09:45 - 09:45 (00:00) Apr 26 09:32 - 09:32 (00:00) Apr 26 08:58 - 08:58 (00:00) Apr 25 09:01 - 09:02 (00:01) Apr 24 08:59 - 09:00 (00:01) Apr 21 15:36 - 15:48 (00:11) Apr 21 10:01 - 10:01 (00:00) Apr 21 09:51 - 09:51 (00:00) Apr 21 09:40 - 09:41 (00:00) Apr 21 09:30 - 09:30 (00:00) Apr 21 09:20 - 09:20 (00:00)
root pts/1 10.0.1.199 Apr 21 09:10 - 09:10 (00:00) root pts/1 10.0.1.199 Apr 21 09:00 - 09:00 (00:00) root pts/1 10.0.1.199 Apr 21 08:50 - 08:50 (00:00) root pts/1 10.0.1.199 Apr 21 08:39 - 08:40 (00:00) root pts/1 10.0.1.199 Apr 21 08:29 - 08:29 (00:00) root pts/1 10.0.1.199 Apr 21 08:19 - 08:19 (00:00) root pts/1 10.0.1.199 Apr 21 08:09 - 08:09 (00:00) root pts/1 10.0.1.199 Apr 21 07:59 - 07:59 (00:00) root pts/1 10.0.1.199 Apr 21 07:49 - 07:49 (00:00) root pts/1 10.0.1.199 Apr 21 07:38 - 07:39 (00:00) root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 Apr 21 07:28 - 07:28 Apr 21 07:18 - 07:18 Apr 21 07:08 - 07:08 Apr 21 06:58 - 06:58 Apr 21 06:48 - 06:48 Apr 21 06:37 - 06:38 Apr 21 06:27 - 06:27 Apr 21 06:17 - 06:17 Apr 21 06:07 - 06:07 Apr 21 05:57 - 05:57 Apr 21 05:47 - 05:47 Apr 21 05:37 - 05:37 Apr 21 05:26 - 05:26 Apr 21 05:16 - 05:16 Apr 21 05:06 - 05:06 Apr 21 04:56 - 04:56 Apr 21 04:46 - 04:46 Apr 21 04:36 - 04:36 Apr 21 04:25 - 04:25 Apr 21 04:15 - 04:15 Apr 21 04:05 - 04:05 Apr 21 03:55 - 03:55 Apr 21 03:45 - 03:45 Apr 21 03:55 - 03:55 Apr 21 03:45 - 03:45 Apr 21 03:35 - 03:35 Apr 21 03:24 - 03:24 Apr 21 03:14 - 03:14 Apr 21 03:04 - 03:04 Apr 21 02:54 - 02:54 Apr 21 02:44 - 02:44 Apr 21 02:34 - 02:34 Apr 21 02:23 - 02:23 Apr 21 02:13 - 02:13 Apr 21 02:03 - 02:03 Apr 21 01:53 - 01:53 (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00)
root pts/1 10.0.1.199 Apr 21 01:43 - 01:43 (00:00) root pts/1 10.0.1.199 Apr 21 01:33 - 01:33 (00:00) root pts/1 10.0.1.199 Apr 21 01:22 - 01:22 (00:00) root pts/1 10.0.1.199 Apr 21 01:12 - 01:12 (00:00) root pts/1 10.0.1.199 Apr 21 01:02 - 01:02 (00:00) root pts/1 10.0.1.199 Apr 21 00:52 - 00:52 (00:00) root pts/1 10.0.1.199 Apr 21 00:42 - 00:42 (00:00) root pts/1 10.0.1.199 Apr 21 00:32 - 00:32 (00:00) root pts/1 10.0.1.199 Apr 21 00:21 - 00:22 (00:00) root pts/1 10.0.1.199 Apr 21 00:11 - 00:11 (00:00) root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 Apr 21 00:01 - 00:01 Apr 20 23:51 - 23:51 Apr 20 23:41 - 23:41 Apr 20 23:31 - 23:31 Apr 20 23:20 - 23:20 Apr 20 23:10 - 23:10 Apr 20 23:00 - 23:00 Apr 20 22:50 - 22:50 Apr 20 22:40 - 22:40 Apr 20 22:30 - 22:30 Apr 20 22:19 - 22:20 Apr 20 22:09 - 22:09 Apr 20 21:59 - 21:59 Apr 20 21:49 - 21:49 Apr 20 21:39 - 21:39 Apr 20 21:29 - 21:29 Apr 20 21:18 - 21:19 Apr 20 21:08 - 21:08 Apr 20 20:58 - 20:58 Apr 20 20:48 - 20:48 Apr 20 20:38 - 20:38 Apr 20 20:28 - 20:28 Apr 20 20:17 - 20:18 Apr 20 20:07 - 20:07 Apr 20 20:17 - 20:18 Apr 20 20:07 - 20:07 Apr 20 19:57 - 19:57 Apr 20 19:47 - 19:47 Apr 20 19:37 - 19:37 Apr 20 19:27 - 19:27 Apr 20 19:16 - 19:17 Apr 20 19:06 - 19:06 Apr 20 18:56 - 18:56 Apr 20 18:46 - 18:46 Apr 20 18:36 - 18:36 Apr 20 18:26 - 18:26 (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00) (00:00)
root pts/1 10.0.1.199 Apr 20 18:15 - 18:16 (00:00) root pts/1 10.0.1.199 Apr 20 18:05 - 18:05 (00:00) root pts/1 10.0.1.199 Apr 20 17:55 - 17:55 (00:00) root pts/1 10.0.1.199 Apr 20 17:45 - 17:45 (00:00) root pts/1 10.0.1.199 Apr 20 17:35 - 17:35 (00:00) root pts/1 10.0.1.199 Apr 20 17:25 - 17:25 (00:00) root pts/1 10.0.1.199 Apr 20 17:15 - 17:15 (00:00) root pts/1 10.0.1.199 Apr 20 17:04 - 17:04 (00:00) root pts/1 10.0.1.199 Apr 20 16:54 - 16:54 (00:00) root pts/1 10.0.1.199 Apr 20 16:44 - 16:44 (00:00) root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/1 root pts/2 oracle pts/1 root pts/1 root pts/1 root pts/1 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 10.0.1.199 Apr 20 16:34 - 16:34 (00:00) Apr 20 16:24 - 16:24 (00:00) Apr 20 16:14 - 16:14 (00:00) Apr 20 16:03 - 16:03 (00:00) Apr 20 15:53 - 15:53 (00:00) Apr 20 15:43 - 15:43 (00:00) Apr 20 15:33 - 15:33 (00:00) Apr 20 15:23 - 15:23 (00:00) Apr 20 15:13 - 15:13 (00:00) Apr 20 15:02 - 15:02 (00:00) Apr 20 14:52 - 14:52 (00:00) Apr 20 14:42 - 14:42 (00:00) Apr 20 14:32 - 14:32 (00:00) Apr 20 14:22 - 14:22 (00:00) Apr 20 14:12 - 14:12 (00:00) Apr 20 14:01 - 14:01 (00:00) Apr 20 13:51 - 13:51 (00:00) Apr 20 13:41 - 13:41 (00:00) Apr 20 13:31 - 13:31 (00:00) Apr 20 13:21 - 13:21 (00:00) Apr 20 13:11 - 13:11 (00:00) Apr 20 13:00 - 13:01 (00:00) Apr 20 12:50 - 12:50 (00:00) Apr 20 12:40 - 12:40 (00:00) Apr 20 12:30 - 12:30 (00:00) Apr 20 12:40 - 12:40 (00:00) Apr 20 12:30 - 12:30 (00:00) Apr 20 12:20 - 12:20 (00:00) Apr 20 12:10 - 12:10 (00:00) Apr 20 11:59 - 12:00 (00:00) Apr 20 11:49 - 11:49 (00:00) Apr 20 11:39 - 11:39 (00:00) Apr 20 11:36 - 11:43 (00:07) Apr 20 11:29 - 11:29 (00:00) Apr 20 11:19 - 11:19 (00:00) Apr 20 11:09 - 11:09 (00:00)
10.20.10.60 root pts/1 10.0.1.199 Apr 20 10:58 - 10:59 (00:00) root pts/1 10.0.1.199 Apr 20 10:48 - 10:48 (00:00) root pts/1 10.0.1.199 Apr 20 10:38 - 10:38 (00:00) root pts/1 10.0.1.199 Apr 20 10:28 - 10:28 (00:00) root pts/1 10.0.1.199 Apr 20 10:18 - 10:18 (00:00) root pts/1 10.0.1.199 Apr 20 10:08 - 10:08 (00:00) root pts/1 10.0.1.199 Apr 20 09:58 - 09:58 (00:00) root pts/1 10.0.1.199 Apr 20 09:47 - 09:47 (00:00) root pts/1 10.0.1.199 Apr 20 09:37 - 09:37 (00:00) root pts/1 10.0.1.199 Apr 20 09:27 - 09:27 (00:00) root pts/1 10.0.1.199 Apr 20 09:17 - 09:17 (00:00) root pts/1 10.0.1.199 Apr 20 09:07 - 09:07 (00:00) root pts/1 10.0.1.199 Apr 20 08:57 - 08:57 (00:00) root pts/1 10.0.1.199 Apr 20 08:46 - 08:46 (00:00) root pts/1 10.0.1.199 Apr 20 08:36 - 08:36 (00:00) root pts/1 10.0.1.199 Apr 20 08:26 - 08:26 (00:00) root pts/1 10.0.1.199 Apr 20 08:16 - 08:16 (00:00) root pts/1 10.0.1.199 Apr 20 08:06 - 08:06 (00:00) root pts/1 10.0.1.199 Apr 20 07:56 - 07:56 (00:00) root pts/1 10.0.1.199 Apr 20 07:45 - 07:45 (00:00) root pts/1 10.0.1.199 Apr 20 07:35 - 07:35 (00:00) root pts/1 10.0.1.199 Apr 20 07:25 - 07:25 (00:00)
通过对以上信息的分析，问题在于网卡en1的IP被人为改动所致
在以上出错信息中，9月3日的报错是因为重启HACMP的缘故，不是事故的原因。查以上信息，en1的IP应该在2007年7月16日以前被改动，具体改成什么IP，不可查知，但在9月3日出现故障时，可查知en1的IP被改为10.0.0.1（正常IP应是192.168.0.20）
故障原因分析：
因为en1的IP被改为与主网卡（en0）同一个A网段的地址，所以，网络会发生聚合-----就是该主机会把诸如10.10.20.X或10.30.40.X之类所有的地址全部当成是10.0.0.0/8网段的主机。所以，当其它网段(例如IP为10.20.222..29的终端)的TCP请求从10.10.20.40到达主机后，因为网络地址聚合的原理，该主机会认为从10.20.222..29发来的请求包是来自本地网，所以回包信息不会发给它的网关10.10.20.1，所以，到不同网段的TCP包也就不会被路由出去，而是在本局域网内传递（这就是为什么跨网段的终端不能访问到该主机，而同一局域网的小型机能访问该主机的原因）
最后，试图用smit tcpip改回en1的IP时，发现其IP设置是正确的（为192.168.0.20），因此推测出对en1的IP的改动是通过ifconfig en1 10.0.0.1 netmask 255.0.0.0 up命令动态实现的。直接用ifconfig将IP改回192.168.0.20，网络恢复正常。