[시스코 보안 아카데미 1기] MPLS 실습

MPLS

ISP 라우터

Interface 설정

ISP(config)# interface GigabitEthernet0/0
ISP(config-if)# ip address 203.0.113.1 255.255.255.252
ISP(config-if)# duplex auto
ISP(config-if)# speed auto
ISP(config-if)# media-type rj45
ISP(config-if)# no shutdown
ISP(config-if)# exit
ISP(config)#
​

BGP 설정

ISP(config)# router bgp 65000
ISP(config-router)# bgp log-neighbor-changes
ISP(config-router)# neighbor 203.0.113.2 remote-as 65001
ISP(config-router)# address-family ipv4
ISP(config-router-af)# network 0.0.0.0
ISP(config-router-af)# neighbor 203.0.113.2 activate
ISP(config-router-af)# exit
ISP(config-router)# exit
ISP(config)# exit
​

PE1 라우터

Interface 설정

PE1(config)# interface Loopback0
PE1(config-if)# ip address 1.1.1.1 255.255.255.255
PE1(config-if)# exit
PE1(config)# interface GigabitEthernet0/0
PE1(config-if)# ip address 10.0.0.1 255.255.255.252
PE1(config-if)# duplex auto
PE1(config-if)# speed auto
PE1(config-if)# media-type rj45
PE1(config-if)# mpls ip
PE1(config-if)# no shutdown
PE1(config-if)# exit
PE1(config)# interface GigabitEthernet0/1
PE1(config-if)# ip address 203.0.113.2 255.255.255.252
PE1(config-if)# duplex auto
PE1(config-if)# speed auto
PE1(config-if)# media-type rj45
PE1(config-if)# no shutdown
PE1(config-if)# exit
​

OSPF 설정

PE1(config)# router ospf 1
PE1(config-router)# network 1.1.1.1 0.0.0.0 area 0
PE1(config-router)# network 10.0.0.0 0.0.0.3 area 0
PE1(config-router)# exit

BGP 설정

PE1(config)# router bgp 65001
PE1(config-router)# bgp log-neighbor-changes
PE1(config-router)# neighbor 3.3.3.3 remote-as 65001
PE1(config-router)# neighbor 3.3.3.3 update-source Loopback0
PE1(config-router)# neighbor 203.0.113.1 remote-as 65000
PE1(config-router)# address-family ipv4
PE1(config-router-af)# network 0.0.0.0
PE1(config-router-af)# neighbor 3.3.3.3 activate
PE1(config-router-af)# neighbor 3.3.3.3 next-hop-self
PE1(config-router-af)# neighbor 203.0.113.1 activate
PE1(config-router-af)# neighbor 203.0.113.1 next-hop-self
PE1(config-router-af)# exit
PE1(config-router)# exit
PE1(config)# exit
​

P 라우터

Interface 설정

P(config)# interface Loopback0
P(config-if)# ip address 2.2.2.2 255.255.255.255
P(config-if)# exit
P(config)# interface GigabitEthernet0/0
P(config-if)# ip address 10.0.0.2 255.255.255.252
P(config-if)# duplex auto
P(config-if)# speed auto
P(config-if)# media-type rj45
P(config-if)# mpls ip
P(config-if)# no shutdown
P(config-if)# exit
P(config)# interface GigabitEthernet0/1
P(config-if)# ip address 10.0.1.1 255.255.255.252
P(config-if)# duplex auto
P(config-if)# speed auto
P(config-if)# media-type rj45
P(config-if)# mpls ip
P(config-if)# no shutdown
P(config-if)# exit
​

 

OSPF 설정

P(config)# router ospf 1
P(config-router)# network 2.2.2.2 0.0.0.0 area 0
P(config-router)# network 10.0.0.0 0.0.0.3 area 0
P(config-router)# network 10.0.1.0 0.0.0.3 area 0
P(config-router)# exit
P(config)# exit

PE2 라우터

Interface 설정

PE2(config)# interface Loopback0
PE2(config-if)# ip address 3.3.3.3 255.255.255.255
PE2(config-if)# exit
PE2(config)# interface GigabitEthernet0/0
PE2(config-if)# ip address 10.0.1.2 255.255.255.252
PE2(config-if)# duplex auto
PE2(config-if)# speed auto
PE2(config-if)# media-type rj45
PE2(config-if)# mpls ip
PE2(config-if)# no shutdown
PE2(config-if)# exit
PE2(config)# interface GigabitEthernet0/1
PE2(config-if)# ip address 192.168.2.1 255.255.255.252
PE2(config-if)# duplex auto
PE2(config-if)# speed auto
PE2(config-if)# media-type rj45
PE2(config-if)# no shutdown
PE2(config-if)# exit
​

OSPF 설정

PE2(config)# router ospf 1
PE2(config-router)# network 3.3.3.3 0.0.0.0 area 0
PE2(config-router)# network 10.0.1.0 0.0.0.3 area 0
PE2(config-router)# exit
PE2(config)#
​

BGP 설정

PE2(config)# router bgp 65001
PE2(config-router)# bgp log-neighbor-changes
PE2(config-router)# neighbor 1.1.1.1 remote-as 65001
PE2(config-router)# neighbor 1.1.1.1 update-source Loopback0
PE2(config-router)# neighbor 192.168.2.2 remote-as 65002
PE2(config-router)# address-family ipv4
PE2(config-router-af)# network 0.0.0.0
PE2(config-router-af)# network 192.168.2.0 mask 255.255.255.252
PE2(config-router-af)# neighbor 1.1.1.1 activate
PE2(config-router-af)# neighbor 1.1.1.1 next-hop-self
PE2(config-router-af)# neighbor 192.168.2.2 activate
PE2(config-router-af)# exit
PE2(config-router)# exit
PE2(config)# exit
​

CE 라우터

Interface 설정

CE(config)# interface GigabitEthernet0/0
CE(config-if)# ip address 192.168.2.2 255.255.255.252
CE(config-if)# duplex auto
CE(config-if)# speed auto
CE(config-if)# media-type rj45
CE(config-if)# no shutdown
CE(config-if)# exit
​

BGP 설정

설정 검증

PE1라우터 MPLS 테이블

P라우터 MPLS 테이블

PE2라우터 MPLS 테이블

Tracertoute를 통한 라벨 스위칭 확인(PE1 → PE2)

BGP 통신 확인(ISP → CE)

 

bgp 세션