- 學位論文
應用SNMP實做網路終端設備之管理與監測研究
A Study of Network End Devices Management and Monitoring using SNMP
摘要
今日電腦網路的使用已可說是日常生活的一部分，面對數量眾多的網路使用者，如何有效率的管理實體網路一直是網管人員所面臨的最大挑戰之一。 網路發展到今日已有數十年的時間，通常實體網路佈建會隨著需求而有適度變更調整，但是網路佈線圖卻往往被忽略了要同步異動，日後若想要快速且正確的找出網路設備埠號所對應資訊插座位置，除了花費人力與時間逐線尋找外，另一選擇則是依賴昂貴的網路探測設備來輔佐追蹤，對於網路管理人員而言，無論時間成本或是經費的花費，均是一項沈重的負擔。 本論文應用 ARP Table、SNMP等技術，搭配網頁程式及資料庫，建構出監測網路終端裝置的系統。透過監測系統的定期探測、收集網路設備資訊，並與先前存於資料庫的資料做交叉比對，能夠迅速協助管理人員勾勒出實際網路分佈架構，若發生偽裝網卡位址的事件時亦可追蹤出偽造者目前的上網位置，杜絕資訊安全上的漏洞。此外更能有效處理區域網路中IP位址衝突的情況，進一步可配合目前節能減碳趨勢，記錄終端設備使用的時間，提供做為節能政策成效的參考資料。
並列摘要
Nowadays, the network is indispensable part of the daily life. Due to the large number of network users, finding an effective ways for network management to the physical network is one of the biggest challenges to network managers. The physical network layout and deployment is clearly ordered in the beginning and is adjusted moderately to meet the demands later on. However, the manager usually forgets to synchronize the changes to the network wiring diagrams. Consequently, it will cost a great deal of manpower and time in the future when an identification of the network device mapping information and port location is required. One option is to rely on some expensive network assisting detection equipments for the task. Regardless of the time and cost, both are a heavy burden to network management, staff. In this thesis, we utilize ARP Table, SNMP and other technologies to construct a system to monitor the network terminal devices. Through periodic detection and network equipment information collection, we can construct a relational map of the network structure. When some users counterfeit the MAC address, we can also use this system to track dawn the counterfeiter’s current location in order to eliminate the security holes. Moreover, we can also use this system to effectively dissolve the local network IP address conflict problem. Furthermore, by recording the on-time of terminal equipments, we can supply the device usage information to the one who take care the energy conservation policy. By using this information, the organization can define and enforce an effective energy saving policy.