Bring MPLS Network at Your Home Lab

Tool : GNS3

Puprose : Simulating Inter-AS Multicast L3VPN back-to-back mode/options A

Topology :

Comments:

PE1,P and ASBR-1 router are inside AS 777 and running OSPF
ASBR-2 and PE2 router are inside AS 2500 and running IS-IS
connention between PE and CE use static route  
MPLS between PE1-P-ASBR-1 and ASBR-2-PE2
We are using rip in order to exchange VPN route between AS 777 and AS 2500
All interface running PIM-Spase Mode including vrf interface
CE 1 designed as VPN RP use static RP configuration
PE1,P and ASBR-1 form MDT 224.7.7.7
ASBR-2 and PE2 form MDT 224.6.6.6
CE1 and CE2 established unicast routing
CE1 join in group 239.1.1.1
CE2 is able receiving multicast traffic

The configuration to form MLPS L3VPN and unicast routing are same with Inter-AS MPLS VPN on the privious post
we only add multicast traffic forwarding capability to know how to form Inter-AS MPLS VPN
you can review my privous post or read the whole configuration
In this post I only post how to add multicast traffic forwarding capability

Example configuration for PE router

–Set vrf name and RD and MDT
!
ip vrf vpn1
 rd 202.162.208.1:100
 route-target export 202.162.208.1:100
 route-target import 202.162.208.10:100
 mdt default 224.7.7.7

–Activate Multicast traffic forwarding capability
!
ip multicast-routing
ip multicast-routing vrf vpn1
!

–PIM-SM needs to be activate on all interface
!
interface Loopback0
 ip address 202.162.208.1 255.255.255.255
 ip pim sparse-mode
!
interface Loopback1
 ip vrf forwarding vpn1
 ip address 192.168.1.200 255.255.255.255
!
interface FastEthernet0/0
 ip vrf forwarding vpn1
 ip address 192.168.1.1 255.255.255.128
 ip pim sparse-mode
 duplex auto
 speed auto
!
interface FastEthernet1/0
 ip address 10.1.1.1 255.255.255.0
 ip pim sparse-mode
 duplex auto
 speed auto
 mpls ip
!

–Set Static RP and PIM range
!
ip pim ssm range 1
ip pim vrf vpn1 rp-address 172.17.63.1
!
access-list 1 permit 224.7.7.7
!

Example configuration for ASBR router 

–Set vrf name and RD and MDT
!
ip vrf vpn1
 rd 125.249.1.10:100
 route-target export 125.249.1.10:100
 route-target import 125.249.1.1:100
 mdt default 224.6.6.6

–Activate Multicast traffic forwarding capability
!
ip multicast-routing
ip multicast-routing vrf vpn1
!

–PIM-SM needs to be activate on all interface
!
interface Loopback0
 ip address 125.249.1.10 255.255.255.255
 ip router isis
 ip pim sparse-mode
!
interface FastEthernet0/0
 ip vrf forwarding vpn1
 ip address 172.16.1.10 255.255.255.0
 ip pim sparse-mode
 duplex auto
 speed auto
!
interface FastEthernet1/0
 ip address 10.1.1.10 255.255.255.0
 ip router isis
 ip pim sparse-mode
 duplex auto
 speed auto
 mpls ip
!

–Set Static RP and PIM range
!
ip pim ssm range 1
ip pim vrf vpn1 rp-address 172.17.63.1
!
access-list 1 permit 224.6.6.6

Lets verify the configuration 

WOOw THIS ROOCK… I can ping multicast address

For detail configuration download at this Link