R1
hostname R1!
interface FastEthernet0/0
ip address 192.168.100.2 255.255.255.0
!
router bgp 64100
neighbor 192.168.100.1 remote-as 64100
no auto-summary
Borde 1
hostname B1!
interface FastEthernet0/0
ip address 10.0.0.1 255.255.255.0
!
interface FastEthernet0/1
ip address 192.168.100.1 255.255.255.0
!
router bgp 64100
network 192.168.100.0
neighbor 10.0.0.2 remote-as 64200
neighbor 192.168.100.2 remote-as 64100
neighbor 192.168.100.2 next-hop-self
no auto-summary
!
Border 2
hostname B2!
interface FastEthernet0/0
ip address 10.0.0.2 255.255.255.0
!
interface FastEthernet0/1
ip address 192.168.200.1 255.255.255.0
!
router bgp 64200
network 192.168.200.0
neighbor 10.0.0.1 remote-as 64100
neighbor 192.168.200.2 remote-as 64200
neighbor 192.168.200.2 next-hop-self
no auto-summary
!
R2
hostname R2!
interface FastEthernet0/0
ip address 192.168.200.2 255.255.255.0
!
router bgp 64200
neighbor 192.168.200.1 remote-as 64200
no auto-summary
!
Pruebas
R1#sh ip bgp
BGP table version is 8, local router ID is 192.168.0.2
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
r>i192.168.100.0 192.168.100.1 0 100 0 i
*>i192.168.200.0 192.168.100.1 0 100 0 64200 i
R1#ping 192.168.200.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.200.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 48/68/88 ms
R1#
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
r>i192.168.100.0 192.168.100.1 0 100 0 i
*>i192.168.200.0 192.168.100.1 0 100 0 64200 i
R1#ping 192.168.200.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.200.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 48/68/88 ms
R1#