MPLS L3VPN. Доступ в Интернет. Common Services

Internet

hostname Internet

!

ip cef

!

interface Loopback0

 ip address 101.0.0.101 255.255.255.255

!

interface FastEthernet0/0

 description To linkmeup

 ip address 101.0.0.1 255.255.255.252

!

router bgp 64501

 network 101.0.0.0 mask 255.255.240.0

 network 101.0.0.0 mask 255.255.248.0

 neighbor 101.0.0.2 remote-as 64500

!

ip route 101.0.0.0 255.255.240.0 Null0

Linkmeup_R1

Linkmeup_R2

hostname Linkmeup_R2

!

ip cef

!

mpls ip

!

interface Loopback0

 ip address 2.2.2.2 255.255.255.255

 ip router isis 1

!

interface FastEthernet0/0

 description To Linkmeup_R1

 ip address 10.0.12.2 255.255.255.0

 ip router isis 1

 mpls ip

!

interface FastEthernet0/1

 description To Linkmeup_R3

 ip address 10.0.23.2 255.255.255.0

 ip router isis 1

 mpls ip

!

router isis 1

 net 10.0000.0000.0002.00

!

mpls ldp router-id Loopback0

Linkmeup_R3

hostname Linkmeup_R3

!

ip cef

!

mpls ip

!

ip vrf C3PO

 rd 64500:100

 route-target export 64500:100

 route-target import 64500:100

!

ip vrf TARS

 rd 64500:200

 export map To_Internet

 route-target export 64500:200

 route-target import 64500:200

 route-target import 64500:22

!

interface Loopback0

 ip address 3.3.3.3 255.255.255.255

 ip router isis 1

!

interface FastEthernet0/0

 description To Linkmeup_R2

 ip address 10.0.23.3 255.255.255.0

 ip router isis 1

 mpls ip

!

interface FastEthernet0/1

 description To C3PO_2

 ip vrf forwarding C3PO

 ip address 192.168.1.1 255.255.255.0

!

interface FastEthernet1/0

 description To TARS_2

 ip vrf forwarding TARS

 ip address 100.0.1.1 255.255.255.252

!

router ospf 2 vrf C3PO

 redistribute bgp 64500 subnets

 network 192.168.0.0 0.0.255.255 area 0

 default-information originate

!

router isis 1

 net 10.0000.0000.0003.00

!

router bgp 64500

 neighbor 1.1.1.1 remote-as 64500

 neighbor 1.1.1.1 update-source Loopback0

 !

 address-family vpnv4

 neighbor 1.1.1.1 activate

 neighbor 1.1.1.1 send-community both

 !

 address-family ipv4 vrf TARS

 redistribute connected

 neighbor 100.0.1.2 remote-as 64520

 neighbor 100.0.1.2 activate

 neighbor 100.0.1.2 default-originate

 !

 address-family ipv4 vrf C3PO

 redistribute ospf 2 vrf C3PO match internal

!

ip prefix-list 1 seq 5 deny 172.16.0.0/12 le 32

ip prefix-list 1 seq 10 deny 192.168.0.0/16 le 32

ip prefix-list 1 seq 15 deny 10.0.0.0/8 le 32

ip prefix-list 1 seq 20 permit 0.0.0.0/0 le 32

!

route-map To_Internet permit 10

 match ip address prefix-list 1

 set extcommunity rt  64500:11

!

mpls ldp router-id Loopback0

TARS_2

hostname TARS_2

!

ip cef

!

interface Loopback0

 ip address 172.16.255.2 255.255.255.255

!

interface FastEthernet0/0

 description To Linkmeup

 ip address 100.0.1.2 255.255.255.252

 ip nat outside

!

interface FastEthernet0/1

 description To LAN

 ip address 172.16.1.1 255.255.255.0

 ip nat inside

!

router bgp 64520

 network 172.16.1.0 mask 255.255.255.0

 network 172.16.255.2 mask 255.255.255.255

 neighbor 100.0.1.1 remote-as 64500

!

ip nat inside source list 100 interface FastEthernet0/0 overload

!

access-list 100 deny   ip 172.16.0.0 0.0.255.255 172.16.0.0 0.0.255.255

access-list 100 permit ip 172.16.0.0 0.0.255.255 any

PC1

 ip 172.16.1.2 255.255.255.0 172.16.1.1