Cisco路由交換技術實驗7——網絡位址轉換技術(NAT)

實驗7——網絡位址轉換技術(NAT)

靜态位址轉換

interface s0/0/0 \\接入營運商接口
ip nat outside  \\ 設定外部接口
interface s0/0/1 \\内網接口
ip nat inside  \\設定内部接口
ip nat inside source static [内部本地IP] [内部全局IP]
show ip nat translation  \\檢視結果
           

動态位址轉換

interface s0/0/0 \\接入營運商接口
ip nat outside  \\ 設定外部接口
interface s0/0/1 \\内網接口
ip nat inside  \\設定内部接口
ip nat pool [名稱] [動态位址起始值] [動态位址結束值] netmask [子網路遮罩]
access-list [名稱] permit [子網絡号] [子網路遮罩反碼] 
ip nat inside source list [名稱] pool [名稱]
           

端口多路複用位址轉換

interface s0/0/0 \\接入營運商接口
ip nat outside  \\ 設定外部接口
interface s0/0/1 \\内網接口
ip nat inside  \\設定内部接口
ip nat pool [名稱] [動态位址起始值] [動态位址結束值] netmask [子網路遮罩]
access-list [名稱] permit [子網絡号1] [子網路遮罩反碼] 
access-list [名稱] permit [子網絡号2] [子網路遮罩反碼]
access-list [名稱] permit [子網絡号3] [子網路遮罩反碼]
ip nat inside source list [名稱] pool [名稱]