蠕蟲(chóng)模擬時(shí)產(chǎn)生的無(wú)效IP 地址掃描包會(huì)在源節(jié)點(diǎn)所屬的路由器被直接丟棄，這與實(shí)際網(wǎng)絡(luò)中數(shù)據(jù)包的傳輸情況差距較大。本文針對(duì)這一問(wèn)題，提出了改進(jìn)路由策略的方法，并實(shí)現(xiàn)了對(duì)模擬器GTNetS 路由策略的修改。為了量化改進(jìn)路由策略前后的區(qū)別，本文提出
了一個(gè)理想的假設(shè)模型，在此基礎(chǔ)上進(jìn)行了模擬實(shí)驗(yàn)。實(shí)驗(yàn)結(jié)果與模型的理論值相符，改進(jìn)路由策略后能夠更準(zhǔn)確地反映蠕蟲(chóng)數(shù)據(jù)包在網(wǎng)絡(luò)中的傳輸。
關(guān)鍵詞：GTNetS；蠕蟲(chóng)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