实验步骤:
第一步:IP地址规划,进行子网划分
将172.16.0.0/16的网段划分为172.16.0.0/24的多个网段,因为在实际工程当中,24的网段更符合用户网段,因此先将网段划分为172.16.0.0 /24的多个子网掩码为24的网段,再将172.16.0.0/24的多个网段进行划分,将172.16.0.0/24的网段用于P2P网络当中,将172.16.1.0/24的网段用于MA网络当中,每个路由器的环回接口都使用一个子网掩码为24的网段
第二步:配置接口IP
R1 :
配置代码
[R1]int g0/0/0
[R1-GigabitEthernet0/0/0]ip add 12.0.0.1 24[R1-GigabitEthernet0/0/0]int l0
[R1-LoopBack0]ip add 192.168.1.1 24[R1-LoopBack0]int lo1
[R1-LoopBack1]ip add 10.0.0.1 24
R2:
配置代码
[R2]int g0/0/0
[R2-GigabitEthernet0/0/0]ip add 12.0.0.2 24[R2-GigabitEthernet0/0/0]int l0
[R2-LoopBack0]ip add 172.16.2.1 24
[R2-GigabitEthernet0/0/1]ip add 172.16.1.1 29[R2-GigabitEthernet0/0/1]int g0/0/2
[R2-GigabitEthernet0/0/2]ip add 172.16.1.9 29
R3:
配置代码
[R3]int g0/0/0
[R3-GigabitEthernet0/0/0]ip add 172.16.1.2 29[R3-GigabitEthernet0/0/0]int l0
[R3-LoopBack0]ip add 172.16.3.1 24
[R3-LoopBack0]int g0/0/1
[R3-GigabitEthernet0/0/1]ip add 172.16.1.17 29
R4:
配置代码
[R4]int g0/0/0
[R4-GigabitEthernet0/0/0]ip add 172.16.1.17 29[R4-GigabitEthernet0/0/0]int g0/0/1
[R4-GigabitEthernet0/0/1]ip add 172.16.1.25 29[R4-GigabitEthernet0/0/1]int l0
[R4-LoopBack0]ip add 172.16.4.1 24
R5:
配置代码
[R5]int g0/0/0
[R5-GigabitEthernet0/0/0]ip add 172.16.1.10 29[R5-GigabitEthernet0/0/0]int g0/0/1
[R5-GigabitEthernet0/0/1]ip add 172.16.1.133 29[R5-GigabitEthernet0/0/1]int l0
[R5-LoopBack0]ip add 172.168.5.1 24
R6:
配置代码
[R6]int g0/0/0
[R6-GigabitEthernet0/0/0]ip add 172.16.1.34 29[R6-GigabitEthernet0/0/0]int l0
[R6-LoopBack0]ip add 172.16.6.1 24
[R6-LoopBack0]int g0/0/1
[R6-GigabitEthernet0/0/1]ip add 172.16.1.41 29
R7:
配置代码
[R7]int g0/0/0
[R7-GigabitEthernet0/0/0]ip add 172.16.1.41 29[R7-GigabitEthernet0/0/0]int l0
[R7-LoopBack0]ip add 172.16.7.1 24[R7-LoopBack0]int g0/0/1
[R7-GigabitEthernet0/0/1]ip add 172.16.1.26 29[R7-GigabitEthernet0/0/1]int g0/0/2
[R7-GigabitEthernet0/0/2]ip add 78.0.0.1 24
R8:
配置代码
[R8]int g0/0/0
[R8-GigabitEthernet0/0/0]ip add 78.0.0.2 24[R8-GigabitEthernet0/0/0]int l0
[R8-LoopBack0]ip add 192.168.2.1 24
[R8-LoopBack0]int l1
[R8-LoopBack1]ip add 11.0.0.1 24
第三步:在AS2中启用OSPF 协议
R2:
[R2]ospf 1 router-id 2.2.2.2
[R2-ospf-1]area 0
[R2-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.255.255
R3:
配置代码
[R3]ospf 1 router-id 3.3.3.3
[R3-ospf-1]area 0
[R3-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.255.255
R4:
配置代码
[R4]ospf 1 router-id 4.4.4.4
[R4-ospf-1]area 0
[R4-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.255.255
R5:
配置代码
[R5]ospf 1 router-id 5.5.5.5
[R5-ospf-1]area 0
[R5-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.255.255
R6:
配置代码
[R6]ospf 1 rou
[R6]ospf 1 router-id 6.6.6.6[R6-ospf-1]area 0
[R6-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.255.255
R7:
配置代码
[R7]ospf 1 router-id 7.7.7.7
[R7-ospf-1]area 0
[R7-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.255.255
第四步:对所有设备启用BGP协议 ,并进行对等体的建立
R1:
配置代码
[R1]bgp 1
[R1-bgp]router-id 1.1.1.1
[R1-bgp]peer 12.0.0.2 as 2
R2:
配置代码
[R2]bgp 64512
[R2-bgp]router-id 2.2.2.2
[R2-bgp]confederation id 2
[R2-bgp]confederation peer-as 64513
[R2-bgp]peer 12.0.0.1 as 1
[R2-bgp]peer 172.16.3.1 as 64512
[R2-bgp]peer 172.16.3.1 connect-interface LoopBack 0[R2-bgp]peer 172.16.5.1 as 64513
[R2-bgp]peer 172.16.5.1 connect-interface LoopBack 0
[R2-bgp]peer 172.16.5.1 ebgp-max-hop 2
[R2-bgp]peer 172.16.3.1 next-hop-local
[R2-bgp]peer 172.16.5.1 next-hop-local
R3:
配置代码
[R3]bgp 64512
[R3-bgp]router-id 3.3.3.3
[R3-bgp]confederation id 2
[R3-bgp]peer 172.16.2.1 as 64512
[R3-bgp]peer 172.16.2.1 connect-interface LoopBack 0
[R3-bgp]peer 172.16.4.1 as 64512
[R3-bgp]peer 172.16.4.1 connect-interface LoopBack 0
R4:
配置代码
[R4]bgp 64512
[R4-bgp]router-id 4.4.4.4
[R4-bgp]confederation id 2
[R4-bgp]confederation peer-as 64513
[R4-bgp]peer 172.16.3.1 as 64512
[R4-bgp]peer 172.16.3.1 connect-interface LoopBack 0
[R4-bgp]peer 172.16.7.1 as 64513
[R4-bgp]peer 172.16.7.1 connect-interface LoopBack 0
[R4-bgp]peer 172.16.7.1 ebgp-max-hop 2
R5:
配置代码
[R5]bgp 64513
[R5-bgp]router-id 5.5.5.5
[R5-bgp]confederation id 2
[R5-bgp]confederation peer-as 64512
[R5-bgp]peer 172.16.2.1 as 64512
[R5-bgp]peer 172.16.2.1 connect-interface LoopBack 0
[R5-bgp]peer 172.16.2.1 ebgp-max-hop 2
[R5-bgp]peer 172.16.6.1 as 64513
[R5-bgp]peer 172.16.6.1 connect-interface LoopBack 0
R6:
配置代码
[R6]bgp 64513
[R6-bgp]router-id 6.6.6.6
[R6-bgp]confederation id 2
[R6-bgp]peer 172.16.5.1 as 64513
[R6-bgp]peer 172.16.5.1 connect-interface LoopBack 0
[R6-bgp]peer 172.16.7.1 as 64513
[R6-bgp]peer 172.16.7.1 connect-interface LoopBack 0
R7:
配置代码
[R7]bgp 64513
[R7-bgp]router-id 7.7.7.7
[R7-bgp]confederation id 2
[R7-bgp]confederation peer-as 64512
[R7-bgp]peer 172.16.6.1 as 64513
[R7-bgp]peer 172.16.6.1 connect-interface LoopBack 0
[R7-bgp]peer 172.16.4.1 as 64512
[R7-bgp]peer 172.16.4.1 connect-interface LoopBack 0
[R7-bgp]peer 172.16.4.1 ebgp-max-hop 2
[R7-bgp]peer 78.0.0.2 as 3
[R7-bgp]peer 172.16.4.1 next-hop-local
[R7-bgp]peer 172.16.6.1 next-hop-local
R8:
配置代码
[R8]bgp 3
[R8-bgp]router-id 8.8.8.8
[R8-bgp]peer 78.0.0.1 as 2
第五步:发布路由信息
R1:
[R1]bgp 1
[R1-bgp]network 10.0.0.0 24
R8:
配置代码
[R8]bgp 3
[R8-bgp]network 11.0.0.0 24
第六步:破坏IBGP之间的水平分割,配置路由反射器
R3;
[R3]bgp 64512
[R3-bgp]peer 172.16.2.1 reflect-client
R6;
配置代码
[R6]bgp 64513
[R6-bgp]peer 172.16.7.1 reflect-client
第七步:做空接口、路由汇总以及宣告
R2:
配置代码
[R2]ip route-static 172.16.0.0 21 NULL 0
[R2]bgp 64512
[R2-bgp]network 172.16.0.0 21
R7:
配置代码
[R7]ip route-static 172.16.0.0 22 NULL 0
[R7]bgp 64513
[R7-bgp]network 172.16.0.0 22
第八步:建立GRE隧道,实现R1和R8环回之间的通讯
R1:
配置代码
[R1]int Tunnel 0/0/0
[R1-Tunnel0/0/0]ip add 192.168.10.1 24
[R1-Tunnel0/0/0]tunnel-protocol gre
[R1-Tunnel0/0/0]source 10.0.0.1
[R1-Tunnel0/0/0]destination 11.0.0.1
[R1-Tunnel0/0/0]q
[R1]ip route-static 192.168.1.0 24 99.0.0.2
R8:
配置代码
[R8]int Tunnel 0/0/0
[R8-Tunnel0/0/0]ip add 192.168.10.2 24
[R8-Tunnel0/0/0]tunnel-protocol gre
[R8-Tunnel0/0/0]source 11.0.0.1
[R8-Tunnel0/0/0]destination 10.0.0.1
[R8-Tunnel0/0/0]q
[R8]ip route-static 192.168.2.0 24 99.0.0.1
测试: