MPLS experiment

One 、 Experimental content

Two 、 The topology

 

  3、 ... and 、 To configure

1. Configure the public network part ip

r2

[r2]int g 0/0/2
[r2-GigabitEthernet0/0/2]ip add 23.1.1.1 24

[r2]int lo0
[r2-LoopBack0]ip add 2.2.2.2 24

r3

[r3]int g 0/0/0
[r3-GigabitEthernet0/0/0]ip add 23.1.1.2 24

[r3]int lo0
[r3-LoopBack0]ip add 3.3.3.3 24

[r3]int g 0/0/1
[r3-GigabitEthernet0/0/1]ip add 34.1.1.1 24

r4

[r4]int lo0
[r4-LoopBack0]ip add 4.4.4.4 24

[r4]int g 0/0/0
[r4-GigabitEthernet0/0/0]ip add 34.1.1.2 24

[r4]int g 0/0/2
[r4-GigabitEthernet0/0/2]ip add 47.1.1.1 24

r7

[r7]int g 0/0/0
[r7-GigabitEthernet0/0/0]ip add 47.1.1.2 24

2. Use ospf Make the public network part communicate

r2

[r2]ospf 1	router-id 2.2.2.2	
[r2-ospf-1]area 0
[r2-ospf-1-area-0.0.0.0]network 23.1.1.1 0.0.0.0
[r2-ospf-1-area-0.0.0.0]network 2.2.2.2 0.0.0.0

r3

[r3]ospf 1 	router-id 3.3.3.3
[r3-ospf-1]area 0
[r3-ospf-1-area-0.0.0.0]network 23.1.1.2 0.0.0.0
[r3-ospf-1-area-0.0.0.0]network 3.3.3.3 0.0.0.0	
[r3-ospf-1-area-0.0.0.0]network 34.1.1.1 0.0.0.0

r4

[r4]ospf 1 router-id 4.4.4.4
[r4-ospf-1]area 0
[r4-ospf-1-area-0.0.0.0]network 34.1.1.2 0.0.0.0
[r4-ospf-1-area-0.0.0.0]network 4.4.4.4 0.0.0.0
[r4-ospf-1-area-0.0.0.0]network 47.1.1.1 0.0.0.0

r7

[r7]ospf 1 router-id 7.7.7.7
[r7-ospf-1]area 0	
[r7-ospf-1-area-0.0.0.0]network 47.1.1.2 0.0.0.0

because r7 The client side. , There is no need to r7 send out hello package , So we need to restrain g0/0/2 Interface , Again r7 Write a default route to r4,r7 You can access r2/3/4

[r4-ospf-1]silent-interface g0/0/2
[r7]ip route-static 0.0.0.0  0 47.1.1.1

3. stay r2/3/4 On the configuration mpls

r2

[r2]mpls lsr-id 2.2.2.2
[r2]mpls
[r2-mpls]mpls ldp
[r2-mpls-ldp]int g 0/0/2
[r2-GigabitEthernet0/0/2]mpls
[r2-GigabitEthernet0/0/2]mpls ldp

r3

[r3]mpls lsr-id 3.3.3.3
[r3]mpls
[r3-mpls]mpls ldp
[r3-GigabitEthernet0/0/0]int g 0/0/1
[r3-GigabitEthernet0/0/0]mpls
[r3-GigabitEthernet0/0/0]mpls ldp

r4

[r4]mpls lsr-id 4.4.4.4
[r4]mpls		
[r4-mpls]mpls ldp
[r4-mpls-ldp]int g 0/0/0
[r4-GigabitEthernet0/0/0]mpls 
[r4-GigabitEthernet0/0/0]mpls ldp

Check mpls My neighbor table , Build neighbors normally

4. stay r2 Do on vrf Space

[r2]ip vpn-instance b1	
[r2-vpn-instance-b1]ipv4-family 	
[r2-vpn-instance-b1-af-ipv4]route-distinguisher 1:1	
[r2-vpn-instance-b1-af-ipv4]vpn-target 1:1
[r2-vpn-instance-b1-af-ipv4]q
[r2]ip vpn	
[r2]ip vpn-instance a1
[r2-vpn-instance-a1]ipv4-family 
[r2-vpn-instance-a1-af-ipv4]route-distinguisher 2:2	
[r2-vpn-instance-a1-af-ipv4]vpn-target 2:2

Bind the two interfaces to b1a1 Space , Configure interface ip

[r2]int g 0/0/0	
[r2-GigabitEthernet0/0/0]ip binding vpn-instance b1
[r2-GigabitEthernet0/0/0]ip add 192.168.2.2 24
[r2-GigabitEthernet0/0/0]q

[r2]int g 0/0/1
[r2-GigabitEthernet0/0/1]ip binding vpn-instance a1
[r2-GigabitEthernet0/0/1]ip add 192.168.2.2 24

start-up r2 Of bgp

[r2]bgp 1	
[r4-bgp] router-id 2.2.2.2
[r2-bgp]peer 4.4.4.4 as-number 1
[r2-bgp]peer 4.4.4.4 connect-interface lo0
[r2-bgp]ipv4	
[r2-bgp]ipv4-family vpnv4	
[r2-bgp-af-vpnv4]peer 4.4.4.4 enable 

5. stay r4 Do on vrf Space

[r4]ip vpn-instance b2	
[r4-vpn-instance-b2]route-distinguisher 1:1
[r4-vpn-instance-b2-af-ipv4]vpn-target 1:1
	
[r4]ip vpn-instance a2
[r4-vpn-instance-a2]route-distinguisher 2:2
[r4-vpn-instance-a2-af-ipv4]vpn-target 2:2

take r4 The two interfaces on are bound to b2 a2 On , To configure ip

[r4]int g 0/0/1	
[r4-GigabitEthernet0/0/1]ip binding vpn-instance b2
[r4-GigabitEthernet0/0/1]ip add 192.168.3.2 24

[r4-GigabitEthernet0/0/1]int g 4/0/0
[r4-GigabitEthernet4/0/0]ip binding vpn-instance a2
[r4-GigabitEthernet4/0/0]ip add 192.168.3.2 24

start-up r4 Of bgp

[r4]bgp 1
[r4-bgp]router-id 4.4.4.4
[r4-bgp]peer 2.2.2.2 as-number 1	
[r4-bgp]peer 2.2.2.2 connect-interface lo0 	
[r4-bgp]ipv4-family vpnv4
[r4-bgp-af-vpnv4]peer 2.2.2.2 enable 

Configure private network ip

r1

[r1]int g 0/0/0
[r1-GigabitEthernet0/0/0]ip add 192.168.2.1 24

[r1]int lo0
[r1-LoopBack0]ip add 192.168.1.1 24

r6

[r6]int lo0
[r6-LoopBack0]ip add 192.168.1.2 24

[r6]int g 0/0/0
[r6-GigabitEthernet0/0/0]ip add 192.168.2.1 24
 

r5

[r5]int g 0/0/0
[r5-GigabitEthernet0/0/0]ip add 192.168.3.1 24

[r5]int lo0
[r5-LoopBack0]ip add 192.168.4.1 24

r7

[r7]int lo0
[r7-LoopBack0]ip add 192.168.4.2 24

[r7]int g 0/0/2
[r7-GigabitEthernet0/0/2]ip add 192.168.3.1 24

6. Use rip The agreement declares r6 Direct connection network segment

[r6]rip 1 
[r6-rip-1]version 2	
[r6-rip-1]network 192.168.1.0 
[r6-rip-1]network 192.168.2.0

Declare r2 And r6 Direct connection network segment （ Declare the interface vpn Space ）

[r2]rip 1 vpn-instance a1
[r2-rip-1]version 2	
[r2-rip-1]network 192.168.2.0

Use ospf Declare r7 The direct network segment of

[r7]ospf 1 router-id 7.7.7.7
[r7-ospf-1]area 0	
[r7-ospf-1-area-0.0.0.0]network 192.168.3.0 0.0.0.255	
[r7-ospf-1-area-0.0.0.0]network 192.168.4.0 0.0.0.255

stay r4 To announce , because r4 There's already one on the table ospf, Therefore, the protocol process number cannot be one , Declare vpn Space

[r4]ospf 2 vpn-instance a2
[r4-ospf-2]area 0
[r4-ospf-2-area-0.0.0.0]network 192.168.3.0 0.0.0.255

7. stay r2 Use two-way republishing on

Get into rip Of VPN Space import bgp

[r2]rip 1 vpn-instance a1	
[r2-rip-1]import-route bgp

Get into bgpVPN Space import rip

[r2]bgp 1 
[r2-bgp]ipv4-family vpn-instance a1
[r2-bgp-a1]import-route rip

stay r4 Two way republishing on

Get into ospfvpn Space import bgp

[r4]ospf 2 vpn-instance a2
[r4-ospf-2]import-route bgp

Get into bgpVPN Space import ospf

[r4]bgp 1
[r4-bgp]ipv4-family vpn-instance a2	
[r4-bgp-a2]import-route ospf 2

see r6 Routing table

 r6 Learned r7 Upper 3.1 and 4.2 route

see r7

 r7 I also learned r6 Of 1.0 and 2.0 route

8. stay b1 and b2 Use static routing

First, in the r1 Write two static

[r1]ip route-static 192.168.3.0 24 192.168.2.2
[r1]ip route-static 192.168.4.0 24 192.168.2.2

stay r2vpn Space plus a route , Point to 1.0

[r2]ip route-static vpn-instance b1 192.168.1.0 24 192.168.2.1

Get into r2bgpVPN Space handle r2 Go to r1 Static and direct route import bgp

[r2]bgp 1
[r2-bgp]ipv4-family vpn-instance b1
[r2-bgp-b1]import-route static 
[r2-bgp-b1]import-route direct 

see r4vpn Space routing table

  You can see r4vpn Space has learned 1.0 and 2.0 The routing

stay r4VPN Space plus a route to 4.0

[r4]ip route-static vpn-instance b2 192.168.4.0 24 192.168.3.1

stay r5 Write two static routes

[r5]ip route-static 192.168.1.0 24 192.168.3.2
[r5]ip route-static 192.168.2.0 24 192.168.3.2

Get into r4bgp Of vpn Space import r4 Go to r5 Direct static routing

[r4]bgp 1	
[r4-bgp]ipv4-family vpn-instance b2
[r4-bgp-b2]import-route static 
[r4-bgp-b2]import-route direct 

see r2VPN Space routing table

 r2VPN Space also learned 3.0 and 4.0 The routing

Use r1 visit 3.0

<r1>ping 192.168.3.1
  PING 192.168.3.1: 56  data bytes, press CTRL_C to break
    Reply from 192.168.3.1: bytes=56 Sequence=1 ttl=252 time=70 ms
    Reply from 192.168.3.1: bytes=56 Sequence=2 ttl=252 time=30 ms
    Reply from 192.168.3.1: bytes=56 Sequence=3 ttl=252 time=40 ms
    Reply from 192.168.3.1: bytes=56 Sequence=4 ttl=252 time=30 ms
    Reply from 192.168.3.1: bytes=56 Sequence=5 ttl=252 time=40 ms

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