长时间ping外部网络 不定时地掉包5-6个 造成断网
查看日志发现防火墙自动重起过！为什么会这样！？
日志中显示：
System is operational.
PKI: Saved DSA PUBLIC KEY PAIR OF USER with subject name CN=ssh host dsa key,CN=Root,
PKI: Saved CA configuration (CA cert subject name OU=Secure Server Certification Authority,O=RSA Data Security, Inc.,C=US,)Saved CA CERT with subject name OU=Secure Server Certification Authority,O=RSA Data Security, Inc.,C=US,
PKI: Saved REFERENCES OF CA CERT with subject name CN=URL,OU=Secure Server Certification Authority,O=RSA Data Security, Inc.,C=US,
The physical state of interface ethernet4 has changed to Up
The physical state of interface ethernet3 has changed to Up
The physical state of interface ethernet2 has changed to Up
The physical state of interface ethernet1 has changed to Up.
The NetScreen device file system is already upgraded.
The NetScreen device loader is already upgraded.
这是什么升级？它为什么自动重起？？

从提示上看你是不是对防火墙的安全设置作过修改,先检查一下防火墙设置在什么时间改动过,再去看看防火墙连接是多少,如果连接数大的话,会导致重新启动.至于病毒,有杀毒软件而且升级就应该没有问题,先看看配置吧.

各位朋友，我的NETSCREEN-204无故重起,session也不多，网络配置最近也没有修改，一天不定期重期3-5次，不知到如何解决，非常着急，那位要是知道如何处理的话，非常感谢！
如下是LOG

2008-02-03 07:27:56	info	Rapid Deployment cannot start because gateway has undergone configuration changes.
2008-02-03 07:27:56	notif	System was reset at 2008-02-02 12:08:30 by shipping.com
2008-02-03 07:27:56	notif	System is operational.
2008-02-03 07:27:54	notif	The physical state of interface ethernet3 has changed to Up
2008-02-03 07:27:54	notif	The physical state of interface ethernet4 has changed to Up
2008-02-03 07:27:54	notif	The physical state of interface ethernet1 has changed to Up
2008-02-03 07:27:50	notif	PKI: Saved DSA PUBLIC KEY PAIR OF USER with subject name CN=ssh host dsa key,CN=Root,
2008-02-03 07:27:50	notif	PKI: Saved CA configuration (CA cert subject name OU=Secure Server Certification Authority,O=RSA Data Security, Inc.,C=US,)
2008-02-03 07:27:50	notif	PKI: Saved CA CERT with subject name OU=Secure Server Certification Authority,O=RSA Data Security, Inc.,C=US,
2008-02-03 07:27:50	notif	PKI: Saved REFERENCES OF CA CERT with subject name CN=URL,OU=Secure Server Certification Authority,O=RSA Data Security, Inc.,C=US,
2008-02-03 07:27:47	notif	The NetScreen device file system is already upgraded.
2008-02-03 07:27:47	notif	The NetScreen device loader is already upgraded.