BGP Issues

[davidcriollo]

HI Everyone, 

I have the following topogy: 

My problem is that R6 can not learn Looback interface from R3, R4 and R5. Eventhough R1 has TCP session with R2 and R6.

R1 BGP table and routing table 

R6 BGP table and routing table

By the way I'm having this error too: 

Please Haaaallllppp

[MHM Cisco World]

I send you message check it 

[davidcriollo · Accepted solution]

Sure

------------------------------------------------------------------------------------------------------

R1

R1#show running-config
Building configuration...

Current configuration : 1811 bytes
!
version 15.2
service timestamps debug datetime msec
service timestamps log datetime msec
!
hostname R1
!
boot-start-marker
boot-end-marker
!
!
!
no aaa new-model
no ip icmp rate-limit unreachable
ip cef
!
!
!
!
!
!
no ip domain lookup
no ipv6 cef
!
!
multilink bundle-name authenticated
!
!
!
!
!
!
!
!
!
ip tcp synwait-time 5
!
!
!
!
!
!
!
!
!
!
!
!
interface FastEthernet0/0
no ip address
shutdown
duplex full
!
interface Serial1/0
ip address 10.12.1.1 255.255.255.0
serial restart-delay 0
!
interface Serial1/1
ip address 10.13.1.2 255.255.255.0
serial restart-delay 0
!
interface Serial1/2
ip address 10.14.1.2 255.255.255.0
serial restart-delay 0
!
interface Serial1/3
ip address 10.15.1.2 255.255.255.0
serial restart-delay 0
!
interface Serial2/0
no ip address
shutdown
serial restart-delay 0
!
interface Serial2/1
no ip address
shutdown
serial restart-delay 0
!
interface Serial2/2
no ip address
shutdown
serial restart-delay 0
!
interface Serial2/3
no ip address
shutdown
serial restart-delay 0
!
!
router eigrp 1
network 10.13.1.0 0.0.0.255
!
router ospf 1
network 10.15.1.0 0.0.0.255 area 0
!
router bgp 65100
bgp log-neighbor-changes
network 10.12.1.0 mask 255.255.255.0
network 192.168.1.1 mask 255.255.255.255
network 192.168.3.3 mask 255.255.255.255
network 192.168.4.4 mask 255.255.255.255
redistribute static
redistribute eigrp 1
redistribute ospf 1
neighbor 10.12.1.2 remote-as 65100
neighbor 10.12.2.2 remote-as 65100
!
ip forward-protocol nd
!
!
no ip http server
no ip http secure-server
ip route 192.168.4.0 255.255.255.0 10.14.1.1
!
!
!
!
control-plane
!
!
line con 0
exec-timeout 0 0
privilege level 15
logging synchronous
stopbits 1
line aux 0
exec-timeout 0 0
privilege level 15
logging synchronous
stopbits 1
line vty 0 4
login

-----------------------------------------------------------------------------------------------------

R2 

R2#show running-config
Building configuration...

Current configuration : 1356 bytes
!
version 15.2
service timestamps debug datetime msec
service timestamps log datetime msec
!
hostname R2
!
boot-start-marker
boot-end-marker
!
!
!
no aaa new-model
no ip icmp rate-limit unreachable
ip cef
!
!
!
!
!
!
no ip domain lookup
no ipv6 cef
!
!
multilink bundle-name authenticated
!
!
!
!
!
!
!
!
!
ip tcp synwait-time 5
!
!
!
!
!
!
!
!
!
!
!
!
interface Loopback0
ip address 192.168.2.2 255.255.255.0
!
interface FastEthernet0/0
no ip address
shutdown
duplex full
!
interface Serial1/0
ip address 10.12.1.2 255.255.255.0
serial restart-delay 0
!
interface Serial1/1
ip address 10.12.2.1 255.255.255.0
serial restart-delay 0
!
interface Serial1/2
no ip address
shutdown
serial restart-delay 0
!
interface Serial1/3
no ip address
shutdown
serial restart-delay 0
!
router ospf 1
network 10.12.1.0 0.0.0.255 area 1
network 10.12.2.0 0.0.0.255 area 1
!
router bgp 65100
bgp log-neighbor-changes
network 10.12.1.0 mask 255.255.255.0
network 10.12.2.0 mask 255.255.255.0
neighbor 10.12.1.1 remote-as 65100
neighbor 10.12.2.2 remote-as 65100
!
ip forward-protocol nd
!
!
no ip http server
no ip http secure-server
!
!
!
!
control-plane
!
!
line con 0
exec-timeout 0 0
privilege level 15
logging synchronous
stopbits 1
line aux 0
exec-timeout 0 0
privilege level 15
logging synchronous
stopbits 1
line vty 0 4
login
!
!
end

------------------------------------------------------------------------------------------------------------

R3

R3#show running-config
Building configuration...

Current configuration : 1133 bytes
!
version 15.2
service timestamps debug datetime msec
service timestamps log datetime msec
!
hostname R3
!
boot-start-marker
boot-end-marker
!
!
!
no aaa new-model
no ip icmp rate-limit unreachable
ip cef
!
!
!
!
!
!
no ip domain lookup
no ipv6 cef
!
!
multilink bundle-name authenticated
!
!
!
!
!
!
!
!
!
ip tcp synwait-time 5
!
!
!
!
!
!
!
!
!
!
!
!
interface Loopback0
ip address 192.168.3.3 255.255.255.0
!
interface FastEthernet0/0
no ip address
shutdown
duplex full
!
interface Serial1/0
no ip address
shutdown
serial restart-delay 0
!
interface Serial1/1
ip address 10.13.1.1 255.255.255.0
serial restart-delay 0
!
interface Serial1/2
no ip address
shutdown
serial restart-delay 0
!
interface Serial1/3
no ip address
shutdown
serial restart-delay 0
!
!
router eigrp 1
network 10.13.1.0 0.0.0.255
network 192.168.3.0
!
ip forward-protocol nd
!
!
no ip http server
no ip http secure-server
!
!
!
!
control-plane
!
!
line con 0
exec-timeout 0 0
privilege level 15
logging synchronous
stopbits 1
line aux 0
exec-timeout 0 0
privilege level 15
logging synchronous
stopbits 1
line vty 0 4
login
!
!
end

-----------------------------------------------------------------------------------------------

R4 

R4#show running-config
Building configuration...

Current configuration : 1099 bytes
!
version 15.2
service timestamps debug datetime msec
service timestamps log datetime msec
!
hostname R4
!
boot-start-marker
boot-end-marker
!
!
!
no aaa new-model
no ip icmp rate-limit unreachable
ip cef
!
!
!
!
!
!
no ip domain lookup
no ipv6 cef
!
!
multilink bundle-name authenticated
!
!
!
!
!
!
!
!
!
ip tcp synwait-time 5
!
!
!
!
!
!
!
!
!
!
!
!
interface Loopback0
ip address 192.168.4.4 255.255.255.0
!
interface FastEthernet0/0
no ip address
shutdown
duplex full
!
interface Serial1/0
no ip address
shutdown
serial restart-delay 0
!
interface Serial1/1
no ip address
shutdown
serial restart-delay 0
!
interface Serial1/2
ip address 10.14.1.1 255.255.255.0
serial restart-delay 0
!
interface Serial1/3
no ip address
shutdown
serial restart-delay 0
!
ip forward-protocol nd
!
!
no ip http server
no ip http secure-server
ip route 0.0.0.0 0.0.0.0 Serial1/2
!
!
!
!
control-plane
!
!
line con 0
exec-timeout 0 0
privilege level 15
logging synchronous
stopbits 1
line aux 0
exec-timeout 0 0
privilege level 15
logging synchronous
stopbits 1
line vty 0 4
login
!
!
end

--------------------------------------------------------------------------------------------------------------

R5 

Building configuration...

Current configuration : 1154 bytes
!
version 15.2
service timestamps debug datetime msec
service timestamps log datetime msec
!
hostname R5
!
boot-start-marker
boot-end-marker
!
!
!
no aaa new-model
no ip icmp rate-limit unreachable
ip cef
!
!
!
!
!
!
no ip domain lookup
no ipv6 cef
!
!
multilink bundle-name authenticated
!
!
!
!
!
!
!
!
!
ip tcp synwait-time 5
!
!
!
!
!
!
!
!
!
!
!
!
interface Loopback0
ip address 192.168.5.5 255.255.255.0
!
interface FastEthernet0/0
no ip address
shutdown
duplex full
!
interface Serial1/0
no ip address
shutdown
serial restart-delay 0
!
interface Serial1/1
no ip address
shutdown
serial restart-delay 0
!
interface Serial1/2
no ip address
shutdown
serial restart-delay 0
!
interface Serial1/3
ip address 10.15.1.1 255.255.255.0
serial restart-delay 0
!
router ospf 1
network 10.15.1.0 0.0.0.255 area 0
network 192.168.5.0 0.0.0.255 area 0
!
ip forward-protocol nd
!
!
no ip http server
no ip http secure-server
!
!
!
!
control-plane
!
!
line con 0
exec-timeout 0 0
privilege level 15
logging synchronous
stopbits 1
line aux 0
exec-timeout 0 0
privilege level 15
logging synchronous
stopbits 1
line vty 0 4
login
!
!
end

--------------------------------------------------------------------------------------------

R6

R6#show running-config
Building configuration...

Current configuration : 1159 bytes
!
version 15.2
service timestamps debug datetime msec
service timestamps log datetime msec
!
hostname R6
!
boot-start-marker
boot-end-marker
!
!
!
no aaa new-model
no ip icmp rate-limit unreachable
ip cef
!
!
!
!
!
!
no ip domain lookup
no ipv6 cef
!
!
multilink bundle-name authenticated
!
!
!
!
!
!
!
!
!
ip tcp synwait-time 5
!
!
!
!
!
!
!
!
!
!
!
!
interface FastEthernet0/0
no ip address
shutdown
duplex full
!
interface Serial1/0
no ip address
shutdown
serial restart-delay 0
!
interface Serial1/1
ip address 10.12.2.2 255.255.255.0
serial restart-delay 0
!
interface Serial1/2
no ip address
shutdown
serial restart-delay 0
!
interface Serial1/3
no ip address
shutdown
serial restart-delay 0
!
router bgp 65100
bgp log-neighbor-changes
network 10.12.2.0 mask 255.255.255.0
neighbor 10.12.1.1 remote-as 65100
neighbor 10.12.2.1 remote-as 65100
!
ip forward-protocol nd
!
!
no ip http server
no ip http secure-server
!
!
!
!
control-plane
!
!
line con 0
exec-timeout 0 0
privilege level 15
logging synchronous
stopbits 1
line aux 0
exec-timeout 0 0
privilege level 15
logging synchronous
stopbits 1
line vty 0 4
login
!
!
end