Interface fastethernet0/1 Ip address 192.168.1.1 255.255.255.0 Ip address 192.168.2.1 255.255.255.0 secondary Duplex auto Speed auto Ip nat inside No shutdown
Interface serial 0/0 Ip address 202.99.160.129 255.255.255.192 Duplex auto Speed auto Ip nat outside No shutdwon
Ip nat pool OutPort 202.99.160.190 202.99.160.190 netmask 255.255.255.192 Ip nat pool OutPool 202.99.160.130 202.99.160.190 netmask 255.255.255.192 Ip nat inside source list1 pool OutPort //192.168.1.0段主機全部轉成202.99.160.190 Ip nat inside source list2 pool OutPool //出于訪問FTP站點等考慮：192.168.2.0和192.168.3.0段主機全部 //轉成202.99.160.130到202.99.160.189中的所有地址。 Access-list1 permit 192.168.1.0 0.0.0.255 Access-list2 permit 192.168.2.0 0.0.0.255 Access-list2 permit 192.168.3.0 0.0.0.255
ISP分配的IP地址是:211.82.220.80~211.82.220.87 211.82.220.81 255.255.255.248 要求Intranet上的Web.E-mail.Ftp.Media可以被外部訪問. Interface fastethernet0/0 Ip address 192.168.1.1 255.255.255.0 Duplex auto Speed auto Ip nat inside No shutdown
Interface fastethernet0/1 Ip address 211.82.220.81 255.255.255.248 Speed auto Duplex auto Ip nat outside No shutdown
Ip nat pool Outpool 211.82.220.86 211.82.20.86 netmask 255.255.255.248 Access-list 1 permit 192.168.1.2 0.0.0.255 Access-list 1 permit 192.168.1.3 0.0.0.255 Access-list 1 permit 192.168.1.4 0.0.0.255 Access-list 1 permit 192.168.1.5 0.0.0.255 Ip nat inside source list1 pool Outpool overload Ip nat inside source static 192.168.1.2 211.82.220.82 Ip nat inside source static 192.168.1.3 211.82.220.83 Ip nat inside source static 192.168.1.4 211.82.220.84 Ip nat inside source static 192.168.1.5 211.82.220.85
Interface ethernet0 Ip address 192.168.1.1 255.255.255.0 Duplex auto Speed auto Ip nat inside No shutdown Interface fastethernet0/0 Ip address 211.82.220.129 255.255.255.248 Duplex auto Speed auto Ip nat outside No shutdown
Access-list 1 permit 192.168.1.0 0.0.0.255 Ip nat pool Everybody 211.82.220.130 211.82.220.130 network 255.255.255.252 Ip nat inside source list1 pool Everybody overload Ip nat inside source static tcp 192.168.1.2 80 202.99.220.130 80 Ip nat inside source static tcp 192.168.1.3 21 202.99.220.130 21 Ip nat inside source static tcp 192.168.1.4 25 202.99.220.130 25 Ip nat inside source static tcp 192.168.1.5 110 202.99.220.130 110
*******************利用地址轉換實現負載均衡******************** ;當有如象騰訊公司似的多服務器時,使用路由器實現負載平衡,可以使它們有平等的訪問機會. Interface fastethernet0/1 Ip address 192.168.1.1 255.255.255.0 Duplex auto Speed auto Ip nat inside No shutdown
Interface fastethernet0/0 Ip address 202.110.198.81 255.2555.255.248 Duplex auto Speed auto Ip nat outside Access-list 1 permit 202.110.198.82 Access-list 2 permit 202.110.198.83 Access-list 3 permit 192.168.1.0 0.0.0.255 Ip nat pool Webser 192.168.1.2 192.168.1.3 255.255.255.248 type rotary Ip nat pool Ftpser 192.168.1.4 192.168.1.5 255.255.255.248 type rotary Ip nat pool normal 202.110.198.84 202.110.198.84 netmask 255.255.255.248 Ip nat inside destination list 1 pool Webser Ip nat inside destination list 2 pool Ftpser
