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DES-7200 Configuration Guide Chapter 2 Configuring BGP IP VPN
2-126
DES-7200(config)# interface Loopback 0
DES-7200(config-if)# ip address 3.3.3.3 255.255.255.255
DES-7200(config-if)# exit
DES-7200(config)# router ospf 1
DES-7200(config-router)# network 3.3.3.3 0.0.0.0 area 0
DES-7200(config-router)# network 172.1.2.0 0.0.0.255 area 0
DES-7200(config-router)# network 172.1.3.0 0.0.0.255 area 0
DES-7200(config-router)# exit
# On ASBR, configure CE as the BGP neighbor: Here we will take ASBR1 as the example. The
configurations of ASBR2, ASBR3 and ASBR4 are the same.
DES-7200(config)# router bgp 65010
DES-7200(config-router)# neighbor 3.3.3.3 remote-as 65010
DES-7200(config-router)# neighbor 3.3.3.3 update-source Loopback 0
DES-7200(config-router)# neighbor 3.3.3.3 next-hop-self
# On CE, configure ASBR and peer site PE as the route reflector client: Here we will take CE1 as
the example. The configurations of CE2 are the same.
DES-7200(config)# router bgp 65010
DES-7200(config-router)# neighbor 4.4.4.4 remote-as 65010
DES-7200(config-router)# neighbor 4.4.4.4 update-source Loopback 0
DES-7200(config-router)# neighbor 4.4.4.4 route-reflector-client
DES-7200(config-router)# neighbor 5.5.5.5 remote-as 65010
DES-7200(config-router)# neighbor 5.5.5.5 update-source Loopback 0
DES-7200(config-router)# neighbor 5.5.5.5 route-reflector-client
DES-7200(config-router)# neighbor 6.6.6.6 remote-as 65010
DES-7200(config-router)# neighbor 6.6.6.6 update-source Loopback 0
DES-7200(config-router)# neighbor 6.6.6.6 route-reflector-client
DES-7200(config-router)# neighbor 6.6.6.6 next-hop-self
Configure user access
# Here we will connect user network 1 with ASBR3. The configurations of other external
networks (user network and Internet gateway) are the same.
## On ASBR3
DES-7200(config)# interface gigabitEthernet 1/2
# In case of a switch, configure the interface to RoutedPort interface (not applicable to a
router)
DES-7200(config-if)# no switchport
# In case of a router, enable fast forwarding on the interface (not applicable to a switch)
DES-7200(config-if)# ip ref