网络工程 - 2 Wan DHCP到cisco路由器 - 吾爱随笔录

我有一个 cisco 2921 路由器和 2 个 wan ip，由 2 个不同的 isp 通过 dhcp 提供。主连接现在是功能性的，我有一个带有 nat 的子网到这个 ip，但我想把第二个 ip 放到另一个子网。我放了这样一条路线：

ip route 0.0.0.0 0.0.0.0 GigabitEthernet0/0

和另一个IP的第二条路线：

ip route 0.0.0.0 0.0.0.0 GigabitEthernet0/1

但是当我这样做时，第二个 ip 不起作用，那么我该如何解决这个问题呢？

配置：

ip dhcp excluded-address 10.28.11.1
ip dhcp excluded-address 10.28.12.1
!
ip dhcp pool vlan 11
 import all
 network 10.28.11.0 255.255.255.0
 domain-name *****
 default-router 10.28.11.1 
 dns-server 1.1.1.1 208.67.220.220 
 lease 3
!
ip dhcp pool vlan 12
 import all
 network 10.28.12.0 255.255.255.0
 domain-name *****
 dns-server 1.1.1.1 208.67.220.220 
 default-router 10.28.12.1 
 lease 3  
!         
!         
!         
no ip domain lookup
ip domain name LAN-***
no ipv6 cef
!         
multilink bundle-name authenticated

interface Embedded-Service-Engine0/0
 no ip address
 shutdown 
!         
interface GigabitEthernet0/0
 ip address dhcp
 ip nat outside
 ip virtual-reassembly in
 duplex auto
 speed auto
!         
interface GigabitEthernet0/1
 ip address dhcp
 ip nat outside
 ip virtual-reassembly in
 duplex auto
 speed auto
!         
interface GigabitEthernet0/2
 i no ip address
 shutdown 
 duplex auto
 speed auto
!         
interface GigabitEthernet0/1/0
 switchport access vlan 10
 no ip address
!         
interface GigabitEthernet0/1/1
 switchport access vlan 11
 no ip address
!         
interface GigabitEthernet0/1/2
 switchport access vlan 10
 no ip address
!         
interface GigabitEthernet0/1/3
 switchport access vlan 12
 no ip address
!         
interface Vlan1
 no ip address
!         
interface Vlan10
 ip address 10.28.10.1 255.255.255.0
 ip nat inside
 ip virtual-reassembly in
!         
interface Vlan11
 ip address 10.28.11.1 255.255.255.0
 ip nat inside
 ip virtual-reassembly in
!         
interface Vlan12
 ip address 10.28.12.1 255.255.255.0
 ip nat inside
 ip virtual-reassembly in
!         
ip forward-protocol nd
!         
no ip http server
no ip http secure-server
!         
ip nat inside source list 1 interface GigabitEthernet0/0 overload
ip nat inside source list 2 interface GigabitEthernet0/0 overload
ip nat inside source list 3 interface GigabitEthernet0/1 overload
ip nat inside source static tcp 10.28.10.50 80 ****** 80 extendable
ip nat inside source static tcp 10.28.10.50 443 ****** 443 extendable
ip nat inside source static udp 10.28.10.22 1194 ****** 1194 extendable
ip nat inside source static tcp 10.28.10.20 8006 ****** 8006 extendable
ip route 0.0.0.0 0.0.0.0 GigabitEthernet0/0
ip route 0.0.0.0 0.0.0.0 GigabitEthernet0/1
!         
access-list 1 permit 10.28.11.0 0.0.0.255
access-list 2 permit 10.28.10.0 0.0.0.255
access-list 3 permit 10.28.12.0 0.0.0.255