MPLS L3VPN. Доступ в Интернет. VRF Aware NAT

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

hostname Linkmeup_R1

!

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

 route-target export 64500:200

 route-target import 64500:200

!

interface Loopback0

 ip address 1.1.1.1 255.255.255.255

 ip router isis 1

!

interface FastEthernet0/0

 description To C3PO_Electronic_1

 ip vrf forwarding C3PO

 ip address 192.168.0.1 255.255.255.0

!

interface FastEthernet0/1

 description To Linkmeup_R2

 ip address 10.0.12.1 255.255.255.0

 ip router isis 1

 ip nat inside

 mpls ip

!

interface FastEthernet1/0

 description To TARS_1

 ip vrf forwarding TARS

 ip address 100.0.0.1 255.255.255.252

!

interface FastEthernet1/1

 description To Balagan-Telecom

 ip address 101.0.0.2 255.255.255.252

 ip nat outside

!

router ospf 2 vrf C3PO

 redistribute bgp 64500 subnets

 network 192.168.0.0 0.0.255.255 area 0

!

router isis 1

 net 10.0000.0000.0001.00

!

router bgp 64500

 network 100.0.0.0 mask 255.255.254.0

 neighbor 3.3.3.3 remote-as 64500

 neighbor 3.3.3.3 update-source Loopback0

 neighbor 3.3.3.3 next-hop-self

 neighbor 101.0.0.1 remote-as 64501

 !

 address-family vpnv4

 neighbor 3.3.3.3 activate

 neighbor 3.3.3.3 send-community both

 !

 address-family ipv4 vrf TARS

 redistribute connected

 neighbor 100.0.0.2 remote-as 64510

 neighbor 100.0.0.2 activate

 default-information originate

 !

 address-family ipv4 vrf C3PO

 redistribute static

 redistribute ospf 2 vrf C3PO match internal

 default-information originate

!

ip route 100.0.0.0 255.255.254.0 Null0

ip route vrf C3PO 0.0.0.0 0.0.0.0 101.0.0.1 global

!

ip nat inside source list 100 interface FastEthernet1/1 vrf C3PO overload

!

access-list 100 permit ip 192.168.0.0 0.0.255.255 any

!

mpls ldp router-id Loopback0

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

 route-target export 64500:200

 route-target import 64500:200

!

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

 network 100.0.1.0 mask 255.255.255.252

 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

!

mpls ldp router-id Loopback0

C3PO_2

hostname C3PO_2

!

ip cef

!

interface Loopback0

 ip address 192.168.255.2 255.255.255.255

!

interface FastEthernet0/0

 description To Linkmeup

 ip address 192.168.1.2 255.255.255.0

!

interface FastEthernet0/1

 description To LAN

 ip address 192.168.2.1 255.255.255.0

!

router ospf 1

 network 192.168.0.0 0.0.255.255 area 0

PC2

ip 192.168.2.2 255.255.255.0 192.168.2.1