MPLS VPN cross domain -optionb

adopt optionB programme hold CE1 Private network routing 192.168.1.1 to CE2
The network topology is as follows ：

Configuration ideas ：
1. stay AS100 Follow AS200 Running in RIPv2 agreement
2. stay AS100 Follow AS200 Run in MPLS LDP
3.R2 Follow R1 R2 Follow R3 establish bgp, here R2 Act as a reflector
4.R1 To create a VPN example , function ospf binding VPN Examples follow CE1 Build a neighborhood
5. stay R1 From BGP Introduced in the agreement ospf agreement （ here R3 There will be 192.168.1.1 The routing ）
6.R3 Follow R4 establish EBGP Neighborhood
7. stay R6 To create a VPN example , function ospf binding VPN Examples follow CE2 Build a neighborhood
8. stay R6 From ospf Introduced in the agreement bgp agreement （ here CE2 There is already 192.168.1.1 The routing ）
9. Then turn it in the opposite direction R6 introduce ospf,R1 introduce bgp（ here CE1 Yes CE2 Of 192.168.2.1 The routing ）
10.ping -a 192.168.1.1 192.168.2.1 through

CE1

interface GigabitEthernet0/0/0
ip address 10.1.11.2 255.255.255.0
#
interface LoopBack0
ip address 192.168.1.1 255.255.255.0
#
ospf 1 router-id 1.1.1.1
area 0.0.0.0
network 10.1.11.2 0.0.0.0
network 192.168.1.1 0.0.0.0

R1

ip vpn-instance A1 ( establish VPN example A1)
ipv4-family
route-distinguisher 1:1
vpn-target 1:100 export-extcommunity
vpn-target 1:100 import-extcommunity（RD Configure to 1:1 RT Configure to 1:100 both）
#
mpls lsr-id 1.1.1.1
mpls
#
mpls ldp ( To configure MPLS LDP agreement )
#
interface GigabitEthernet0/0/0
ip binding vpn-instance A1
ip address 10.1.11.1 255.255.255.0（ stay g0/0/0 Oral binding VPN example A1）
#
interface GigabitEthernet0/0/1
ip address 10.1.12.1 255.255.255.0
mpls
mpls ldp（ Each interface is turned on MPLS LDP agreement The following is the same ）
#

interface LoopBack0
ip address 1.1.1.1 255.255.255.255
#

bgp 100
peer 2.2.2.2 as-number 100
peer 2.2.2.2 connect-interface LoopBack0
#
ipv4-family unicast
undo synchronization
peer 2.2.2.2 enable
#
ipv4-family vpnv4
policy vpn-target
peer 2.2.2.2 enable（BGP Not on by default vpnv4 Address family , Need to open ）
#
ipv4-family vpn-instance A1
import-route ospf 1（ stay BGP Introduced in the agreement ospf1 The route in ）
#
ospf 1 vpn-instance A1（ establish ospf Remember to bind instances A1）
import-route bgp（ stay ospf1 Introduced inside BGP The routing ）
area 0.0.0.0
network 10.1.11.1 0.0.0.0
#
rip 1
version 2（ Remember to use ripv2 ）
network 1.0.0.0
network 10.0.0.0

R2

mpls lsr-id 2.2.2.2
mpls
#
mpls ldp
#
interface GigabitEthernet0/0/0
ip address 10.1.12.2 255.255.255.0
mpls
mpls ldp
#
interface GigabitEthernet0/0/1
ip address 10.1.23.2 255.255.255.0
mpls
mpls ldp
#

interface LoopBack0
ip address 2.2.2.2 255.255.255.255
#
bgp 100（ here R2 Need to follow R1 R3 establish BGP Neighborhood , Act as a reflector ）
peer 1.1.1.1 as-number 100
peer 1.1.1.1 connect-interface LoopBack0
peer 3.3.3.3 as-number 100
peer 3.3.3.3 connect-interface LoopBack0
#
ipv4-family unicastu
ndo synchronization
peer 1.1.1.1 enable
peer 3.3.3.3 enable
#

ipv4-family vpnv4
undo policy vpn-target（ You need to turn off tag filtering ）
peer 1.1.1.1 enable
peer 1.1.1.1 reflect-client（ Inform to R1 As R2 Client ）
peer 3.3.3.3 enable
peer 3.3.3.3 reflect-client（ Inform to R3 As R2 Client ）
#
rip 1
version 2
network 10.0.0.0
network 2.0.0.0

R3

mpls lsr-id 3.3.3.3
mpls
#
mpls ldp
#
interface GigabitEthernet0/0/0
ip address 10.1.23.3 255.255.255.0
mpls
mpls ldp
#
interface GigabitEthernet0/0/1
ip address 10.1.34.3 255.255.255.0
 mpls（ It's going to open here mpls Announce the label to the opposite end ）
#
interface LoopBack0
 ip address 3.3.3.3 255.255.255.255
#

bgp 100
 peer 2.2.2.2 as-number 100
 peer 2.2.2.2 connect-interface LoopBack0
 peer 10.1.34.4 as-number 200
 #
 ipv4-family unicast
  undo synchronization
  peer 2.2.2.2 enable
  peer 10.1.34.4 enable
 #
 ipv4-family vpnv4
  undo policy vpn-target（ Be careful undo）
  peer 2.2.2.2 enable
  peer 10.1.34.4 enable
#
rip 1
 version 2
 network 3.0.0.0
 network 10.0.0.0

R4

mpls lsr-id 4.4.4.4
mpls
#
mpls ldp
#
interface GigabitEthernet0/0/0
 ip address 10.1.34.4 255.255.255.0
 mpls（ Pay attention to R3 The connected interface is turned on mpls）
#
interface GigabitEthernet0/0/1
 ip address 10.1.45.4 255.255.255.0
 mpls
 mpls ldp
#
interface LoopBack0
 ip address 4.4.4.4 255.255.255.255
#

bgp 200
 peer 6.6.6.6 as-number 200
 peer 6.6.6.6 connect-interface LoopBack0
 peer 10.1.34.3 as-number 100
 #
 ipv4-family unicast
  undo synchronization
  peer 6.6.6.6 enable
  peer 10.1.34.3 enable
 #
 ipv4-family vpnv4
  undo policy vpn-target
  peer 6.6.6.6 enable
  peer 10.1.34.3 enable
#
rip 1
 version 2
 network 10.0.0.0
 network 4.0.0.0

R5

（ because R5 Do not act as a reflector , All you need to do here is establish a neighborhood relationship ）
mpls lsr-id 5.5.5.5
mpls
#
mpls ldp
#
interface GigabitEthernet0/0/0
 ip address 10.1.45.5 255.255.255.0
 mpls
 mpls ldp
#
interface GigabitEthernet0/0/1
ip address 10.1.56.5 255.255.255.0
 mpls
 mpls ldp
#
interface LoopBack0
 ip address 5.5.5.5 255.255.255.255
#
rip 1
 version 2
 network 10.0.0.0
 network 5.0.0.0

R6

ip vpn-instance B2
 ipv4-family
  route-distinguisher 1:2 ( Make sure that RD The only )
  vpn-target 1:100 export-extcommunity
  vpn-target 1:100 import-extcommunity
#
mpls lsr-id 6.6.6.6
mpls
#
mpls ldp
#

interface GigabitEthernet0/0/0
 ip address 10.1.56.6 255.255.255.0
 mpls
 mpls ldp
#
interface GigabitEthernet0/0/1（VPN example B2 binding g0/0/1）
 ip binding vpn-instance B2
 ip address 10.1.26.6 255.255.255.0
#
interface LoopBack0
 ip address 6.6.6.6 255.255.255.255
#
bgp 200
 peer 4.4.4.4 as-number 200
 peer 4.4.4.4 connect-interface LoopBack0
 #
 ipv4-family unicast
  undo synchronization
  peer 4.4.4.4 enable
 #
 ipv4-family vpnv4
  policy vpn-target
  peer 4.4.4.4 enable
 #
 ipv4-family vpn-instance B2
  import-route ospf 1（BGP introduce ospf）

#
ospf 1 vpn-instance B2
 import-route bgp(ospf introduce bgp)
 area 0.0.0.0
  network 10.1.26.6 0.0.0.0
#
rip 1
 version 2
 network 6.0.0.0
 network 10.0.0.0

CE2

interface GigabitEthernet0/0/0
 ip address 10.1.26.2 255.255.255.0
#
interface LoopBack0
 ip address 192.168.3.1 255.255.255.0
#
ospf 1 router-id 2.2.2.2
 area 0.0.0.0
  network 10.1.26.2 0.0.0.0
  network 192.168.3.1 0.0.0.0