1,配置IP地址
R1:
[R1]dis ip interface brief
Interface IP Address/Mask Physical Protocol
GigabitEthernet0/0/0 192.168.1.254/24 up up
Serial4/0/0 15.1.1.1/24 up up
Tunnel0/0/0 10.1.2.1/24 up up
Tunnel0/0/1 10.1.1.1/24 up up
R2:
[R2]dis ip interface brief
Interface IP Address/Mask Physical Protocol
GigabitEthernet0/0/0 192.168.2.254/24 up up
NULL0 unassigned up up(s)
Serial4/0/0 25.1.1.2/24 up up
Tunnel0/0/0 10.1.2.2/24 up up
R3:
[R3]dis ip interface brief
Interface IP Address/Mask Physical Protocol
GigabitEthernet0/0/0 192.168.3.254/24 up up
NULL0 unassigned up up(s)
Serial4/0/0 35.1.1.3/24 up down
Tunnel0/0/0 10.1.2.3/24 up down
R4:
[R4]dis ip interface brief
Interface IP Address/Mask Physical Protocol
GigabitEthernet0/0/0 45.1.1.4/24 up up
GigabitEthernet0/0/1 192.168.4.254/24 up up
NULL0 unassigned up up(s)
Tunnel0/0/1 10.1.1.4/24 up up
R5:
[R5]dis ip interface brief
Interface IP Address/Mask Physical Protocol
GigabitEthernet0/0/0 45.1.1.5/24 up up
LoopBack1 5.5.5.5/24 up up(s)
NULL0 unassigned up up(s)
Serial3/0/1 25.1.1.5/24 up up
Serial4/0/0 35.1.1.5/24 up down
Serial4/0/1 15.1.1.5/24 up up
PC1:192.168.1.1/24
PC2:192.168.4.2/24
PC3:192.168.2.3/24
PC4:192.168.3.4/24
2,实现公网互通
[R1]ip route-static 0.0.0.0 0 15.1.1.5
[R2]ip route-static 0.0.0.0 0 25.1.1.5
[R3]ip route-static 0.0.0.0 0 35.1.1.5
[R4]ip route-static 0.0.0.0 0 45.1.1.5
3,配置认证
(1)R1和R5间使用PPP的PAP认证,R5为主认证方:
R5
[R5]aaa
[R5-aaa]local-user zhangdaye password cipher zdy123
Info: Add a new user.
[R5-aaa]local-user zhangdaye service-type ppp
[R5-aaa]q
[R5]int s4/0/1
[R5-Serial4/0/1]ppp authentication-mode pap
R1
[R1]int s 4/0/0
[R1-Serial4/0/0]ppp pap local-user zhangdaye password cipher zdy123
(2)R2与R5之间使用ppp的CHAP认证,R5为主认证方;
R5
[R5]int s 3/0/1
[R5-Serial3/0/1]ppp authentication-mode chap
R2
[R2]int s 4/0/0
[R2-Serial4/0/0]ppp chap user zhangdaye
[R2-Serial4/0/0]ppp chap password cipher zdy123
(3)R3与R5之间使用HDLC封装;
R3:
[R3-Serial4/0/0]link-protocol hdlc
R5:
[R5-Serial4/0/0]link-protocol hdlc
4,R1、R2、R3构建一个MGRE环境,R1为中心站点,R1、R4间为点到点的GRE;
(1)配置tunnel隧道:
R1:
0/0/0:
[R1]int t 0/0/0
[R1-Tunnel0/0/0]ip address 10.1.2.1 24
[R1-Tunnel0/0/0]tunnel-protocol gre p2mp
[R1-Tunnel0/0/0]source 15.1.1.1
0/0/1
[R1]int t 0/0/1
[R1-Tunnel0/0/1]ip address 10.1.1.1 24
[R1-Tunnel0/0/1]tunnel-protocol gre
[R1-Tunnel0/0/1]source 15.1.1.1
[R1-Tunnel0/0/1]destination 45.1.1.4
R2:
[R2]int t 0/0/0
[R2-Tunnel0/0/0]ip address 10.1.2.2 24
[R2-Tunnel0/0/0]tunnel-protocol gre p2mp
[R2-Tunnel0/0/0]source 25.1.1.2
R3:
[R3]int t 0/0/0
[R3-Tunnel0/0/0]ip address 10.1.2.3 24
[R3-Tunnel0/0/0]tunnel-protocol gre p2mp
[R3-Tunnel0/0/0]source 35.1.1.3
R4:
[R4]int t 0/0/1
[R4-Tunnel0/0/1]ip address 10.1.1.4 24
[R4-Tunnel0/0/1]tunnel-protocol gre
[R4-Tunnel0/0/1]source 45.1.1.4
[R4-Tunnel0/0/1]destination 15.1.1.1
(2)NHRP的配置,中心站点配置:
[R1]int t 0/0/0
[R1-Tunnel0/0/0]nhrp network-id 100
[R2]int t 0/0/0
[R2-Tunnel0/0/0]nhrp network-id 100
[R2-Tunnel0/0/0]nhrp entry 10.1.2.1 15.1.1.1 register
[R3]int t 0/0/0
[R3-Tunnel0/0/0]nhrp network-id 100
[R3-Tunnel0/0/0]nhrp entry 10.1.2.1 15.1.1.1 register
5,整个私有网络基本RIP全网可达,
(1)配置RIP路由协议来传递两端私网路由
[R1]rip 1
[R1-rip-1]undo summary
[R1-rip-1]v 2
[R1-rip-1]network 192.168.1.0
[R1-rip-1]network 10.0.0.0
[R2]rip 1
[R2-rip-1]undo summary
[R2-rip-1]v 2
[R2-rip-1]network 192.168.2.0
[R2-rip-1]network 10.0.0.0
[R3]rip 1
[R3-rip-1]undo summary
[R3-rip-1]v 2
[R3-rip-1]network 192.168.3.0
[R3-rip-1]network 10.0.0.0
[R4]rip 1
[R4-rip-1]undo summary
[R4-rip-1]v 2
[R4-rip-1]network 192.168.4.0
[R4-rip-1]network 10.0.0.0
(2)在中心上开启伪广播,关闭RIP的水平分割机制
[R1]int t 0/0/0
[R1-Tunnel0/0/0]nhrp entry multicast dynamic
[R1-Tunnel0/0/0]undo rip split-horizon
[R2-Tunnel0/0/0]undo rip split-horizon
[R3-Tunnel0/0/0]undo rip split-horizon
[R4-Tunnel0/0/0]undo rip split-horizon
6,所有pc设置私有IP为源IP,可以访问R5环回,达到全网通。
[R1]acl 2000
[R1-acl-basic-2000]rule permit source 192.168.1.0 0.0.0.255
[R1]int s 4/0/0
[R1-Serial4/0/0]nat outbound 2000
[R2]acl 2000
[R2-acl-basic-2000]rule permit source 192.168.2.0 0.0.0.255
[R2-acl-basic-2000]q
[R2]int s 4/0/0
[R2-Serial4/0/0]nat outbound 2000
[R3]acl 2000
[R3-acl-basic-2000]rule permit source 192.168.3.0 0.0.0.255
[R3-acl-basic-2000]q
[R3]int s 4/0/0
[R3-Serial4/0/0]nat outbound 2000
[R4]acl 2000
[R4-acl-basic-2000]rule permit source 192.168.4.0 0.0.0.255
[R4-acl-basic-2000]q
[R4]int g 0/0/0
[R4-GigabitEthernet0/0/0]nat outbound 2000