实验题目：
1.整个AS2的IP地址为172.16.0.0/16，请合理划分（AS间的骨干链路IP地址随意定制）
2.AS1存在两个环回，一个地址为192.168.1.0/24该地址不能在任何协议中宣告；AS3中存在两个环回，一个地址为192.168.2.0/24该地址不能在任何协议中宣告，最终要求这两个环回可以互相通讯 As1的另一个环回为10.0.0.0/24，AS3的另一个环回为11.0.0.0/24
1.首先使用ospf建立通讯连接
[r2]ospf 1 router-id 2.2.2.2 [r2-ospf-1]a 0 [r2-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.255.255 [r3]ospf 1 router-id 3.3.3.3 [r3-ospf-1]a 0 [r3-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.255.255 [r4]ospf 1 router-id 4.4.4.4 [r4-ospf-1]a 0 [r4-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.255.255 [r5]ospf 1 router-id 5.5.5.5 [r5-ospf-1]a 0 [r5-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.255.255 [r6]ospf 1 router-id 6.6.6.6 [r6-ospf-1]a 0 [r6-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.255.255 [r7]ospf 1 router-id 7.7.7.7 [r7-ospf-1]a 0 [r7-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.255.255
2.建立联邦的IBGP对等体关系
[r2]bgp 64512 [r2-bgp]confederation id 2 [r2-bgp]peer 12.0.0.1 as-number 1 [r2-bgp]peer 172.16.1.1 as-number 64512 [r2-bgp]peer 172.16.1.1 connect-interface LoopBack 0 [r3]bgp 64512 [r3-bgp]confederation id 2 [r3-bgp]peer 172.16.6.1 as-number 64512 [r3-bgp]peer 172.16.6.1 connect-interface LoopBack 0 [r3-bgp]peer 172.16.2.1 as-number 64512 [r3-bgp]peer 172.16.2.1 connect-interface LoopBack 0 //------//[r3-bgp]peer 172.16.6.1 reflect-client将r3设成RR [r3-bgp]peer 172.16.2.1 reflect-client [r4]bgp 64512 [r4-bgp]confederation id 2 [r4-bgp]peer 172.16.1.1 as-number 64512 [r4-bgp]peer 172.16.1.1 connect-interface LoopBack 0 [r5]bgp 64513 [r5-bgp]confederation id 2 [r5-bgp]peer 172.16.4.1 as-number 64513 [r5-bgp]peer 172.16.4.1 connect-interface LoopBack 0 [r5-bgp]peer 172.16.4.1 next-hop-local [r6]bgp 64513 [r6-bgp]confederation id 2 [r6-bgp]peer 172.16.3.1 as-number 64513 [r6-bgp]peer 172.16.3.1 connect-interface LoopBack 0 [r6-bgp]peer 172.16.5.1 as-number 64513 [r6-bgp]peer 172.16.5.1 connect-interface LoopBack 0 [r6-bgp]peer 172.16.3.1 next-hop-local [r6-bgp]peer 172.16.5.1 next-hop-local >>>>>>>>>>将r6作为RR [r6-bgp]peer 172.16.3.1 reflect-client [r6-bgp]peer 172.16.5.1 reflect-client [r7]bgp 64513 [r7-bgp]confederation id 2 [r7-bgp]peer 172.16.4.1 as-number 64513 [r7-bgp]peer 172.16.4.1 connect-interface LoopBack 0 [r7-bgp]peer 172.16.4.1 next-hop-local
3.建立联邦的EBGP对等体关系
[r1]bgp 1 [r1-bgp]peer 12.0.0.2 as-number 2 [r2-bgp]peer 12.0.0.1 as-number 1 [r2]bgp 64512 [r2-bgp]confederation peer-as 64513 [r2-bgp]peer 172.16.0.18 as-number 64513 [r2-bgp]peer 172.16.0.18 ebgp-max-hop [r4]bgp 64512 [r4-bgp]confederation peer-as 64513 [r4-bgp]peer 172.16.0.42 as-number 64513 [r4-bgp]peer 172.16.0.42 ebgp-max-hop [r5]bgp 64513 [r5-bgp]confederation peer-as 64512 [r5-bgp]peer 172.16.0.17 as-number 64512 [r5-bgp]peer 172.16.0.17 ebgp-max-hop [r7]bgp 64513 [r7-bgp]peer 78.0.0.2 as [r7-bgp]peer 78.0.0.2 as-number 3 [r7]bgp 64513 [r7-bgp]confederation peer-as 64512 [r7-bgp]peer 172.16.0.41 as-number 64512 [r7-bgp]peer 172.16.0.41 ebgp-max-hop [r8]bgp 3 [r8-bgp]network 11.0.0.1 24 [r8-bgp]peer 78.0.0.1 as-number 2
4. 将下一跳的属性修改为自身
[r2-bgp]peer 172.16.1.1 next-hop-local [r3-bgp]peer 172.16.6.1 next-hop-local [r3-bgp]peer 172.16.2.1 next-hop-local [r4-bgp]peer 172.16.1.1 next-hop-local
5.r2设置空接口防止环路并宣告AS 2内的环回（r7同样的配置
[r2]ip route-static 172.16.0.0 16 NULL 0 [r2-bgp]network 172.16.0.0 16
6.给两个固定环回搭建虚拟隧道
[r1-Tunnel0/0/0]display this [V200R003C00] # interface Tunnel0/0/0 ip address 192.168.3.1 255.255.255.0 tunnel-protocol gre source 10.0.0.1 destination 11.0.0.1 # return -------------------------------------------------------------- [r8-Tunnel0/0/0]display this [V200R003C00] # interface Tunnel0/0/0 ip address 192.168.3.2 255.255.255.0 tunnel-protocol gre source 11.0.0.1 destination 10.0.0.1 # return
7.在r1和r8上写个静态控制流量方向
[r1]ip route-static 192.168.2.0 24 192.168.3.2 [r8]ip route-static 192.168.1.0 24 192.168.3.1
