CISCO實現雙線接入

 

第一步： 

配置cnc接口： 

interface GigabitEthernet5/1 

ip address 60.10.135.11 255.255.255.224 

ip nat outside

配置tel接口： 

interface GigabitEthernet5/9 

ip address 219.148.157.22 255.255.255.252 

ip nat outside

配置內網接口： 

interface GigabitEthernet5/2 

ip address 192.168.0.1 255.255.255.0 

ip nat inside

第二步：配置accelist-list

access-list 100 permit ip 192.168.0.0 0.0.0.255 any

第三步：分別配置cnc和tel的地址池 

ip nat pool pool2 60.10.135.11 60.10.135.11 netmask 255.255.255.224 

ip nat pool pool1 219.148.157.22 219.148.157.22 netmask 255.255.255.252

第四步：配置兩個route-map

route-map isp2 permit 10 

match ip address 100 

match interface GigabitEthernet5/1 

! 

route-map isp1 permit 10 

match ip address 100 

match interface GigabitEthernet5/9

第五步：配置兩個nat

ip nat inside source route-map isp1 pool pool1 overload 

ip nat inside source route-map isp2 pool pool2 overload

第六步：配置路由 

缺省從電信走：ip route 0.0.0.0 0.0.0.0 219.148.157.21 

目的地址是網通的走網通，例如:ip route 202.99.168.0 255.255.248.0 60.10.135.1 

將全國的網通地址段全部添加上即可完成。