博碩士論文 110423012 詳細資訊




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姓名 徐郁齊(Yu-Chi Hsu)  查詢紙本館藏   畢業系所 資訊管理學系
論文名稱 設計與實作基於驗證路由資訊一致性之自動化 BGP 路由 過濾策略與安全機制
(Design and Implementation of an Automated BGP Routing Filtering Strategy and Security Mechanism based on Validation of Route Information Consistency)
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檔案 [Endnote RIS 格式]    [Bibtex 格式]    [相關文章]   [文章引用]   [完整記錄]   [館藏目錄]   至系統瀏覽論文 (2028-7-31以後開放)
摘要(中) 網路的快速發展,已派發的自治系統及 IP 地址數量龐大,其中,自治系統之間的 關係錯綜複雜,而自治系統之間藉由 BGP 協定交換路由資訊,BGP 協定本身並無附帶 之安全機制,於是迄今為止,出現許多惡意、非惡意的路由宣告,造成網際網路中發生 許多路由洩漏以及路由劫持,然而,陸續有許多防範 BGPHijack 的框架及方法,其中 最熱門、相較之下也最被廣為採用的即為 RPKI 框架,但時至今日,RPKI 的部署以及 ROA 的創建,在全球的路由之中仍然尚未到達半數以上,即代表網路中,多數路由之 ROV 結果,仍然為 NotFound,若將網路安全性作為第一優先考量,強硬地在邊界路由 器上設定只接收 RPKI-valid 之路由,則會大幅影響網路的連接性以及可達性。因此本 研究基於網路的連接性、可達性以及安全性之考量,設計並實作一套基於驗證路由資訊 一致性之自動化佈署 BGP 路由過濾策略的系統,持續監聽網路介面,過濾 BGP 封包, 並解析封包內容,並根據所收到的 BGPUpdateMessage,查詢 InternetRoutingRegistry 資料庫,根據該路由於分散式資料庫中的資訊,產生路由過濾策略,並將路由過濾策略 部署至自治系統內的邊界路由器,企圖在 RPKI-NotFound 之路由當中進一步過濾潛在的 惡意路由,避免將惡意路由收進路由表中,加以散播惡意路由資訊,以此提升自治系統 及整體網路安全性。
摘要(英) With the rapid development of the network, a large number of autonomous systems and IP addresses have been distributed. Among them, the relationship between the autonomous systems is intricate, and the routing information is exchanged between the autonomous systems through the BGP protocol. Today, the establishment of ROA has not yet reached more than half of the routes in the world, which means that most routes in the network have not yet registered ROA. Considering network security, if the border router is set to only accept RPKI-valid routes, it will greatly affect the connectivity and reachability of the network. Therefore, based on the consideration of network connectivity, reachability and security, this research designs and implements a set of automatic deployment BGP routing filtering policy system based on verifying the consistency of routing information. It continuously monitors the network interface, filters BGP packets, and analyzes the packet content. Leveraging data acquired from BGP neighbors, the system proficiently liaises with the IRR database. Proactively, it meticulously filters potential malicious routes, forestalling their entry into the routing table and inhibiting further propagation. This astute tactic significantly fortifies the security of autonomous systems, thus reinforcing the overall network′s robustness.
關鍵字(中) ★ BGP
★ 路由過濾
★ 軟體定義網路
★ 自動化
關鍵字(英) ★ BGP
★ Route Filtering
★ Softwared-Defined Network
★ Automation
論文目次 一、 緒論 1
1.1. 研究背景 1
1.2. 研究動機與目的 2
1.3. 研究貢獻 3
1.4. 章節架構 4
二、 相關研究 5
2.1. SDN 5
2.2. BGP Routing Policy 6
2.3. 路由過濾 11
2.4. BGP Hijack 12
2.5. 常見之路由過濾、技術框架及其依據 13
2.6. 討論 17
三、 系統設計 22
3.1. 系統架構 24
3.2. 系統模組 27
3.2.1. Monitor 模組 27
3.2.2. BGP Message Parser 模組 27
3.2.3. 路由檢查模組 29
3.2.4. Routing Policy Generator 模組 30
3.2.5. Policy Deployment 模組 31
3.3. 系統運作流程說明 31
3.4. 初始路由策略 36
3.5. 適用場域 37
四、 實驗與評估 38
4.1. 實驗環境 38
4.2. 實驗目的 41
4.3. 實驗設計:路由過濾與採用策略 42
4.4. 實驗資料分析 43
4.4.1. 只採用 RPKI-ROV 的結果為 valid 的路由 43
4.4.2. 採用 RPKI-ROV 為 valid 的路由,以及結果為 Not-Found,但可以通過常見的 Bogon Filter 之路由 44
4.4.3. 採用 RPKI-ROV 為 valid 的路由,以及結果為 Not-Found,但可以通過本 系統所提出的方法過濾之路由 45
4.4.4. 實驗比較 52
4.4.5. 系統效能評估 53
4.4.5.1. Automated Routing Policy Generator 效能評估 53
4.4.5.2. Border Router 效能評估 57
4.5. 實驗總結 61
4.6. 研究限制與缺點 62
五、 結論 63
參考文獻 66
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指導教授 蔡邦維(Pang-Wei Tsai) 審核日期 2023-8-17
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