HCIP——BGP综合实验
BGP综合实验
- 一、实验拓扑
- 二、实验要求
- 三、实验步骤
-
- 1、配置接口IP地址与环回地址
- 2、AS2配置OSPF
- 3、配置BGP，建立对等体
- 4、发布路由
- 5、配置路由反射器
- 6、做空接口、汇总以及宣告
- 7、建立GRE隧道
- 8、查看BGP路由表
- 9、测试
一、实验拓扑
二、实验要求
- 1，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中存在俩个环回，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
- 2，整个AS2的IP地址为172.16.0.0/16，请合理划分
- 3，AS间的骨干链路IP地址随意定制
- 4，使用BGP协议让整个网络所有设备的环回可以互相访问
- 5，减少路由条目数量，避免环路出现
划分AS2网段：
172.16.0.0/16
172.16.0.0/24
172.16.1.0/24---MA
172.16.1.0/29
172.16.1.8/29
172.16.1.24/29
172.16.1.32/29
172.16.1.40/29
172.16.1.48/29
172.16.1.56/29
R2:172.16.2.0/24---P2P
R3:172.16.3.0/24---P2P
R4:172.16.4.0/24
R5:172.16.5.0/24
R6:172.16.6.0/24
三、实验步骤
1、配置接口IP地址与环回地址
R1:
[r1]int g 0/0/0
[r1-GigabitEthernet0/0/0]ip a 12.0.0.1 24
[r1-GigabitEthernet0/0/0]int lo0
[r1-LoopBack0]ip a 192.168.1.1 24
[r1-LoopBack0]int lo1
[r1-LoopBack1]ip a 10.0.0.1 24
R2:
[r2]int g0/0/0
[r2-GigabitEthernet0/0/0]ip a 12.0.0.2 24
[r2-GigabitEthernet0/0/0]int lo0
[r2-LoopBack0]ip a 172.16.2.1 24
[r2]int g 0/0/1
[r2-GigabitEthernet0/0/1]ip a 172.16.1.1 29
[r2-GigabitEthernet0/0/1]int g0/0/2
[r2-GigabitEthernet0/0/2]ip a 172.16.1.9 29
R3:
[r3]int g0/0/0
[r3-GigabitEthernet0/0/0]ip a 172.16.1.2 29
[r3-GigabitEthernet0/0/0]int lo0
[r3-LoopBack0]ip a 172.16.3.1 24
[r3-LoopBack0]int g 0/0/1
[r3-GigabitEthernet0/0/1]ip a 172.16.1.17 29
R4:
[r4]int g0/0/0
[r4-GigabitEthernet0/0/0]ip a 172.16.1.18 29
[r4-GigabitEthernet0/0/0]int g 0/0/1
[r4-GigabitEthernet0/0/1]ip a 172.16.1.25 29
[r4-GigabitEthernet0/0/1]int lo0
[r4-LoopBack0]ip a 172.16.4.1 24
R5:
[r5]int g 0/0/0
[r5-GigabitEthernet0/0/0]ip a 172.16.1.10 29
[r5-GigabitEthernet0/0/0]int g 0/0/1
[r5-GigabitEthernet0/0/1]ip a 172.16.1.133 29
[r5-GigabitEthernet0/0/1]int lo0
[r5-LoopBack0]ip a 172.16.5.1 24
R6:
[r6]int g 0/0/0
[r6-GigabitEthernet0/0/0]ip a 172.16.1.34 29
[r6-GigabitEthernet0/0/0]int lo0
[r6-LoopBack0]ip a 172.16.6.1 24
[r6-LoopBack0]int g0/0/1
[r6-GigabitEthernet0/0/1]ip a 172.16.1.41 29
R7:
[r7]int g0/0/0
[r7-GigabitEthernet0/0/0]ip a 172.16.1.42 29
[r7-GigabitEthernet0/0/0]int lo0
[r7-LoopBack0]ip a 172.16.7.1 24
[r7-LoopBack0]int g 0/0/1
[r7-GigabitEthernet0/0/1]ip a 172.16.1.26 29
[r7-GigabitEthernet0/0/1]int g 0/0/2
[r7-GigabitEthernet0/0/2]ip a 78.0.0.1 24
R8:
[r8]int g 0/0/0
[r8-GigabitEthernet0/0/0]ip a 78.0.0.2 24
[r8-GigabitEthernet0/0/0]int lo0
[r8-LoopBack0]ip a 192.168.2.1 24
[r8-LoopBack0]int lo1
[r8-LoopBack1]ip a 11.0.0.1 24
2、AS2配置OSPF
R2：
[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：
[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：
[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：
[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：
[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
[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
3、配置BGP，建立对等体
R1：
[r1]bgp 1
[r1-bgp]route-select
[r1-bgp]router-id 1.1.1.1
[r1-bgp]peer 12.0.0.2 as 2
R2：
[r2]bgp 64512
[r2-bgp]route-select
[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：
[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：
[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：
[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：
[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：
[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：
[r8]bgp 3
[r8-bgp]router-id 8.8.8.8
[r8-bgp]peer 78.0.0.1 as 2
4、发布路由
R1：
[r1]bgp 1
[r1-bgp]network 10.0.0.0 24
R8：
[r8]bgp 3
[r8-bgp]network 11.0.0.0 24
5、配置路由反射器
R3：
[r3]bgp 64512
[r3-bgp]peer 172.16.2.1 reflect-client
R6：
[r6]bgp 64513
[r6-bgp]peer 172.16.7.1 reflect-client
6、做空接口、汇总以及宣告
R2：
[r2]ip route-static 172.16.0.0 21 NULL 0
[r2]bgp 64512
[r2-bgp]network 172.16.0.0 21
R7：
[r7]ip route-static 172.16.0.0 22 NULL 0
[r7]bgp 64513
7、建立GRE隧道
R1：
[r1]int t0/0/0
[r1-Tunnel0/0/0]ip a 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]ip route-static 192.168.1.0 24 99.0.0.2
R8：
[r8]int t0/0/0
[r8-Tunnel0/0/0]ip a 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]ip route-static 192.168.2.0 24 99.0.0.1
8、查看BGP路由表
R1:
[R1]display bgp routing-table
BGP Local router ID is 1.1.1.1
Status codes: * - valid, > - best, d - damped,
h - history, i - internal, s - suppressed, S - Stale
Origin : i - IGP, e - EGP, ? - incomplete
Total Number of Routes: 3
Network NextHop MED LocPrf PrefVal Path/Ogn
*> 10.1.1.0/24 0.0.0.0 0 0 i
*> 11.1.1.0/24 12.1.1.2 0 2 3i
*> 172.16.0.0/21 12.1.1.2 0 0 2i
[R1]
R2:
<R2>display bgp routing-table
BGP Local router ID is 2.2.2.2
Status codes: * - valid, > - best, d - damped,
h - history, i - internal, s - suppressed, S - Stale
Origin : i - IGP, e - EGP, ? - incomplete
Total Number of Routes: 3
Network NextHop MED LocPrf PrefVal Path/Ogn
*> 10.1.1.0/24 12.1.1.1 0 0 1i
*>i 11.1.1.0/24 172.16.7.1 0 100 0 (64513) 3i
*> 172.16.0.0/21 0.0.0.0 0 0 i
<R2>
R3:
<R3>display bgp routing-table
BGP Local router ID is 3.3.3.3
Status codes: * - valid, > - best, d - damped,
h - history, i - internal, s - suppressed, S - Stale
Origin : i - IGP, e - EGP, ? - incomplete
Total Number of Routes: 5
Network NextHop MED LocPrf PrefVal Path/Ogn
*>i 10.1.1.0/24 172.16.2.1 0 100 0 1i
*>i 11.1.1.0/24 172.16.7.1 0 100 0 (64513) 3i
* i 172.16.7.1 0 100 0 (64513) 3i
*>i 172.16.0.0/21 172.16.2.1 0 100 0 i
* i 172.16.7.1 0 100 0 (64513)i
<R3>
R4:
<R4>display bgp routing-table
BGP Local router ID is 4.4.4.4
Status codes: * - valid, > - best, d - damped,
h - history, i - internal, s - suppressed, S - Stale
Origin : i - IGP, e - EGP, ? - incomplete
Total Number of Routes: 5
Network NextHop MED LocPrf PrefVal Path/Ogn
*>i 10.1.1.0/24 172.16.2.1 0 100 0 1i
*>i 11.1.1.0/24 172.16.7.1 0 100 0 (64513) 3i
* i 172.16.7.1 0 100 0 (64513) 3i
*>i 172.16.0.0/21 172.16.7.1 0 100 0 (64513)i
* i 172.16.2.1 0 100 0 i
<R4>
R5:
<R5>display bgp routing-table
BGP Local router ID is 5.5.5.5
Status codes: * - valid, > - best, d - damped,
h - history, i - internal, s - suppressed, S - Stale
Origin : i - IGP, e - EGP, ? - incomplete
Total Number of Routes: 4
Network NextHop MED LocPrf PrefVal Path/Ogn
*>i 10.1.1.0/24 172.16.2.1 0 100 0 (64512) 1i
*>i 11.1.1.0/24 172.16.7.1 0 100 0 3i
*>i 172.16.0.0/21 172.16.2.1 0 100 0 (64512)i
* i 172.16.7.1 0 100 0 i
<R5>
R6:
<R6>display bgp routing-table
BGP Local router ID is 6.6.6.6
Status codes: * - valid, > - best, d - damped,
h - history, i - internal, s - suppressed, S - Stale
Origin : i - IGP, e - EGP, ? - incomplete
Total Number of Routes: 5
Network NextHop MED LocPrf PrefVal Path/Ogn
*>i 10.1.1.0/24 172.16.2.1 0 100 0 (64512) 1i
* i 172.16.2.1 0 100 0 (64512) 1i
*>i 11.1.1.0/24 172.16.7.1 0 100 0 3i
*>i 172.16.0.0/21 172.16.7.1 0 100 0 i
* i 172.16.2.1 0 100 0 (64512)i
<R6>
R7:
<R7>display bgp routing-table
BGP Local router ID is 7.7.7.7
Status codes: * - valid, > - best, d - damped,
h - history, i - internal, s - suppressed, S - Stale
Origin : i - IGP, e - EGP, ? - incomplete
Total Number of Routes: 4
Network NextHop MED LocPrf PrefVal Path/Ogn
*>i 10.1.1.0/24 172.16.2.1 0 100 0 (64512) 1i
* i 172.16.2.1 0 100 0 (64512) 1i
*> 11.1.1.0/24 78.1.1.1 0 0 3i
*> 172.16.0.0/21 0.0.0.0 0 0 i
<R7>
R8:
<R8>display bgp routing-table
BGP Local router ID is 8.8.8.8
Status codes: * - valid, > - best, d - damped,
h - history, i - internal, s - suppressed, S - Stale
Origin : i - IGP, e - EGP, ? - incomplete
Total Number of Routes: 3
Network NextHop MED LocPrf PrefVal Path/Ogn
*> 10.1.1.0/24 78.1.1.2 0 2 1i
*> 11.1.1.0/24 0.0.0.0 0 0 i
*> 172.16.0.0/21 78.1.1.2 0 0 2i
<R8>
9、测试
R1 ping R8：
[R1]ping -a 192.168.1.1 192.168.2.1
PING 192.168.2.1: 56 data bytes, press CTRL_C to break
Reply from 192.168.2.1: bytes=56 Sequence=1 ttl=255 time=110 ms
Reply from 192.168.2.1: bytes=56 Sequence=2 ttl=255 time=50 ms
Reply from 192.168.2.1: bytes=56 Sequence=3 ttl=255 time=40 ms
Reply from 192.168.2.1: bytes=56 Sequence=4 ttl=255 time=40 ms
Reply from 192.168.2.1: bytes=56 Sequence=5 ttl=255 time=30 ms
--- 192.168.2.1 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 30/54/110 ms
[R1]