1、需求描述
访问不同的IP地址使用不同的ISP线路
不同ISP的用户通过不同地址访问内网服务器
IP地址自定义。
2、拓扑结构
3、实现思路
配置不同的ACL区分地址转换时使用不同的地址池
通过浮动路由和明细路由实现路由选路和备份
服务器使用8080端口
4、实现过程
R1配置
en
conf t
int fa 0/0
ip add 192.168.0.254 255.255.255.0
no shut
ip nat inside
exit
int fa 0/1
ip add 192.168.1.254 255.255.255.0
no shut
ip nat inside
exit
int fa 1/0
ip add 202.101.100.1 255.255.255.0
no shut
ip nat outside
exit
int fa 1/1
ip add 202.101.200.1 255.255.255.0
no shut
ip nat outside
ip nat inside source static tcp 192.168.0.1 8080 202.101.100.1 8080 extendable
ip nat inside source static tcp 192.168.0.1 8080 202.101.200.1 8080 extendable
ip access-list extended isp1
permit ip any 202.101.100.0 0.0.0.255
exit
ip access-list extended isp2
permit ip any 202.101.200.0 0.0.0.255
exit
ip nat pool isp1 202.101.100.1 202.101.100.1 netmask 255.255.255.0
ip nat pool isp2 202.101.200.1 202.101.200.1 netmask 255.255.255.0
ip nat inside source list isp1 pool isp1 overload
ip nat inside source list isp2 pool isp2 overload
ip route 202.101.100.0 255.255.255.0 202.101.100.1 1
ip route 202.101.100.0 255.255.255.0 202.101.200.1 2
ip route 202.101.200.0 255.255.255.0 202.101.200.1 1
ip route 202.101.200.0 255.255.255.0 202.101.100.1 2
R2配置
en
conf t
int fa 0/0
ip add 202.101.100.2 255.255.255.0
no shut
exit
R3配置
en
conf t
int fa 0/0
ip add 202.101.200.2 255.255.255.0
