蠕蟲模擬時產(chǎn)生的無效IP 地址掃描包會在源節(jié)點所屬的路由器被直接丟棄，這與實際網(wǎng)絡(luò)中數(shù)據(jù)包的傳輸情況差距較大。本文針對這一問題，提出了改進路由策略的方法，并實現(xiàn)了對模擬器GTNetS 路由策略的修改。為了量化改進路由策略前后的區(qū)別，本文提出
了一個理想的假設(shè)模型，在此基礎(chǔ)上進行了模擬實驗。實驗結(jié)果與模型的理論值相符，改進路由策略后能夠更準確地反映蠕蟲數(shù)據(jù)包在網(wǎng)絡(luò)中的傳輸。
關(guān)鍵詞：GTNetS；蠕蟲模擬；路由策略
Abstract: In current worm simulation, network simulators will drop the scanning packets sent to invalid IP addresses，which will underestimate the traffic brought by worm. This paper focuses on that problem, introduces a modified routing strategy for worm simulation and implements the idea in the network simulator GTNetS. In order to quantitatively compare the differences between original routing strategy and the modified one, an ideal model is presented and several experiments have been made. Simulation results show that worm traffic is more accurately reflected after routing strategy has been modified.
Key words: GTNetS; worm simulation; routing strategy