SNMP纵论

On Simple Network Management Protocol (SNMP)

为了进一步理解简单网络管理协议,通过对网络管理与简单网络管理协议(SNMP)的分析,指出了SNMP所面临的安全威胁、网络管理与SNMP的发展方向.描述了SNMP的通信模式、组成部分、通信协议与管理信息库(MIB),指出了SNMP面临伪装、信息更改、信息泄漏、拒绝服务等安全威胁.提出了由于SNMP的SMI使用ASN.1信令描述,SNMP的核心安全具有安全隐患.最后描述并分析了基于Web的方式、桌面管理任务组织、分布式对象管理和下一代SNMP等网络管理发展方向.

For further understanding simple Network Management Protocol, through the analysis of network management and SNMP, the authors point out the potential security problem of SNMP and the development trends of network management, describe the communication mode, component parts, communication protocol and management infomation base of SNMP, and list such menace to SNMP's security as role pretence, information modification, information divulgence, and denying of service, etc. The authors think that the core of SNMP has dangers in security because SMI (structure of management information) of SNMP is written by ASN. 1 (abstract syntax notation one) . At last, they analyze the development trends of network management, such as Web besed managemnent tools, DMTF(desk management task force), CORBA (cooperative object request broker architecture) and SNMPng (SNMP next generation), etc.