BGP basic experiment

Requirements and topology ：

IP Divide ：

The division here is not reasonable

R1:

R2:

R3:

R4:

R5:

R6:

R7:

R8:

OSPF：

AS64512：

ospf 1 router-id 2.2.2.2
area 0.0.0.0
network 172.16.0.1 0.0.0.0
network 172.16.16.1 0.0.0.0
network 172.16.128.1 0.0.0.0

ospf 1 router-id 3.3.3.3
area 0.0.0.0
network 172.16.0.2 0.0.0.0
network 172.16.32.1 0.0.0.0
network 172.16.144.1 0.0.0.0

ospf 1 router-id 4.4.4.4
area 0.0.0.0
network 172.16.32.2 0.0.0.0
network 172.16.48.1 0.0.0.0
network 172.16.160.1 0.0.0.0

AS64513：

ospf 1 router-id 5.5.5.5
area 0.0.0.0
network 172.16.16.2 0.0.0.0
network 172.16.64.1 0.0.0.0
network 172.16.176.1 0.0.0.0

ospf 1 router-id 6.6.6.6
area 0.0.0.0
network 172.16.64.2 0.0.0.0
network 172.16.80.1 0.0.0.0
network 172.16.192.1 0.0.0.0

ospf 1 router-id 7.7.7.7
area 0.0.0.0
network 172.16.48.2 0.0.0.0
network 172.16.80.2 0.0.0.0
network 172.16.208.1 0.0.0.0

R2OSPF Routing table ：

R7OSPF Routing table ：

EBGP：

R1：

Here the EBGP Direct connection and neighbor building
[r1]bgp 1
[r1-bgp]router-id 1.1.1.1
[r1-bgp]peer 12.0.0.2 as-number 2

R2：

[r2]bgp 64512
[r2-bgp]router-id 2.2.2.2
[r2-bgp]confederation id 2 // In order to and EBGP Peer neighbor building , Explain your big AS Number is 2
[r2-bgp]peer 12.0.0.1 as-number 1

R7：

[r7]bgp 64513
[r7-bgp]router-id 7.7.7.7
[r7-bgp]confederation id 2
[r7-bgp]peer 78.0.0.2 as-number 3

R8：

[r8]bgp 3
[r8-bgp]router-id 8.8.8.8
[r8-bgp]peer 78.0.0.1 as-number 2

If the EBGP Non direct connection and neighbor building , You need to modify the next maximum value .
[r8-bgp]peer 78.0.0.1 ebgp-max-hop ?
INTEGER<1-255> Maximum hop
Please press ENTER to execute command

IBGP：

Loop back is used here to build neighbors

R2：

[r2-bgp]peer 172.16.144.1 as-number 64512 // And R3
[r2-bgp]peer 172.16.144.1 connect-interface l0
[r2-bgp]peer 172.16.144.1 next-hop-local

[r2-bgp]confederation peer-as 64513 // The federal
[r2-bgp]peer 172.16.176.1 as-number 64513 // And R5
[r2-bgp]peer 172.16.176.1 next-hop-local
[r2-bgp]peer 172.16.176.1 connect-interface LoopBack 0
[r2-bgp]peer 172.16.176.1 ebgp-max-hop

R3：

[r3]bgp 64512
[r3-bgp]router-id 3.3.3.3
[r3-bgp]confederation id 2
[r3-bgp]peer 172.16.128.1 as-number 64512 // And R2
[r3-bgp]peer 172.16.128.1 connect-interface LoopBack 0
[r3-bgp]peer 172.16.128.1 next-hop-local

[r3-bgp]peer 172.16.160.1 as-number 64512 // And R4
[r3-bgp]peer 172.16.160.1 connect-interface l0
[r3-bgp]peer 172.16.160.1 next-hop-local

R4：

[r4]bgp 64512
[r4-bgp]router-id 4.4.4.4
[r4-bgp]confederation id 2
[r4-bgp]peer 172.16.144.1 as-number 64512 // And R3
[r4-bgp]peer 172.16.144.1 connect-interface l0
[r4-bgp]peer 172.16.144.1 next-hop-local

R5：

[r5]bgp 64513
[r5-bgp]router-id 5.5.5.5
[r5-bgp]confederation id 2
[r5-bgp]confederation peer-as 64512 // The federal
[r5-bgp]peer 172.16.128.1 as-number 64512 // And R2
[r5-bgp]peer 172.16.128.1 connect-interface l0
[r5-bgp]peer 172.16.128.1 next-hop-local
[r5-bgp]peer 172.16.128.1 ebgp-max-hop

[r5-bgp]peer 172.16.192.1 as-number 64513 // And R6
[r5-bgp]peer 172.16.192.1 connect-interface LoopBack 0
[r5-bgp]peer 172.16.192.1 next-hop-local

R6：

[r6-bgp]peer 172.16.176.1 as-number 64513 // And R5
[r6-bgp]peer 172.16.176.1 connect-interface LoopBack 0
[r6-bgp]peer 172.16.176.1 next-hop-local

[r6-bgp]peer 172.16.208.1 as-number 64513 // And R7
[r6-bgp]peer 172.16.208.1 connect-interface LoopBack 0
[r6-bgp]peer 172.16.208.1 next-hop-local

R7：

[r7-bgp]peer 172.16.192.1 as-number 64513 // And R6
[r7-bgp]peer 172.16.192.1 connect-interface LoopBack 0
[r7-bgp]peer 172.16.192.1 next-hop-local

BGP Declare ：

[r1-bgp]network 10.0.0.0 24

[r2-bgp]network 172.16.128.0 20

[r3-bgp]network 172.16.144.0 20

[r4-bgp]network 172.16.160.0 20

[r5-bgp]network 172.16.176.0 20

[r6-bgp]network 172.16.192.0 20

[r7-bgp]network 172.16.208.0 20

[r8-bgp]network 11.0.0.0 24

Routing reflectors ：

[r3-bgp]peer 172.16.160.1 reflect-client R3 Appoint R4 For customers

[r6-bgp]peer 172.16.208.1 reflect-client R6 Appoint R7 For customers

R1 Learn all loopback routes

R8 Learn all loopback routes

VPN：

interface Tunnel0/0/0
ip address 18.0.0.1 255.255.255.0
tunnel-protocol gre
source 10.0.0.1
destination 11.0.0.1
[r1]ip route-static 192.168.2.0 24 18.0.0.2

interface Tunnel0/0/0
ip address 18.0.0.2 255.255.255.0
tunnel-protocol gre
source 11.0.0.1
destination 10.0.0.1
[r8]ip route-static 192.168.1.0 24 18.0.0.1