在高校校园网络中，存在各种威胁使网络安全得不到保障。本文通过对现阶段校园网络防火墙、VLAN 技术、 防病毒技术等问题进行分析，探讨相应的防范措施，保障校园网络安全，提高信息管理能力，完善高校校园网安全体系。

In the campus network, there are a variety of threats causing the network security being not guaranteed. This article provides an analysis on the problems of firewall, VLAN technology, anti-virus technology, etc. It purposes the corresponding preventive measures to guarantee campus network security, enhancing information management ability and improving the campus network security system.