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BGP reachability issue from different AS

R Manjunatha
Level 3
Level 3

Unable to ping from one AS 65001 i.e R61 to another AS 65002 R54, R53 and R58.similarly AS65003 R59, R50 and R55.but am getting all the BGP routes. I configured next hop self towards ebgp routers as well.

ex- from R61 unable to ping IP add 192.54.10.1 and 192.55.10.1

 R61

interface Loopback0
ip address 61.61.61.61 255.255.255.0
!
interface Loopback1
ip address 192.61.10.1 255.255.255.0
!
interface Loopback2
ip address 192.61.20.2 255.255.255.0
!
interface Loopback3
ip address 192.61.30.3 255.255.255.0
!
interface Loopback4
ip address 192.61.40.4 255.255.255.0
!
interface Ethernet0/0
ip address 10.10.61.2 255.255.255.0
duplex auto
!
interface Ethernet0/1
no ip address
duplex auto
!
interface Ethernet0/2
ip address 172.16.85.2 255.255.255.0
duplex auto
!
interface Ethernet0/3
no ip address
shutdown
duplex auto
!
interface Ethernet1/0
no ip address
shutdown
duplex auto
!
interface Ethernet1/1
no ip address
shutdown
duplex auto
!
interface Ethernet1/2
no ip address
shutdown
duplex auto
!
interface Ethernet1/3
no ip address
shutdown
duplex auto
!
!
router eigrp 100
network 172.16.85.0 0.0.0.255
!
router ospf 1
router-id 61.61.61.61
network 10.10.48.0 0.0.0.255 area 0
network 10.10.61.0 0.0.0.255 area 0
network 61.61.61.0 0.0.0.255 area 0
!
router bgp 65002
bgp log-neighbor-changes
network 61.61.61.0 mask 255.255.255.0
network 172.16.85.0 mask 255.255.255.0
network 192.61.10.0
network 192.61.20.0
network 192.61.30.0
network 192.61.40.0
neighbor 48.48.48.48 remote-as 65002
neighbor 48.48.48.48 update-source Loopback0
neighbor 48.48.48.48 next-hop-self
neighbor 52.52.52.52 remote-as 65002
neighbor 52.52.52.52 update-source Loopback0
neighbor 52.52.52.52 next-hop-self
neighbor 60.60.60.60 remote-as 65002
neighbor 60.60.60.60 update-source Loopback0
neighbor 60.60.60.60 next-hop-self

R61(config-router)# DO SH IP BGP
BGP table version is 68, local router ID is 192.61.40.4
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale, m multipath, b backup-path, f RT-Filter,
x best-external, a additional-path, c RIB-compressed,
t secondary path,
Origin codes: i - IGP, e - EGP, ? - incomplete
RPKI validation codes: V valid, I invalid, N Not found

Network Next Hop Metric LocPrf Weight Path
*>i 10.10.49.0/24 48.48.48.48 0 100 0 65001 i
*>i 10.10.54.0/24 48.48.48.48 0 100 0 65001 i
*>i 48.48.48.0/24 48.48.48.48 0 100 0 i
*>i 49.49.49.0/24 48.48.48.48 0 100 0 65001 i
*> 61.61.61.0/24 0.0.0.0 0 32768 i
*>i 172.16.1.0/24 52.52.52.52 0 100 0 i
*>i 172.16.2.0/24 48.48.48.48 0 100 0 i
*>i 172.16.3.0/24 52.52.52.52 0 100 0 65003 i
*> 172.16.85.0/24 0.0.0.0 0 32768 i
*>i 192.48.10.0 48.48.48.48 0 100 0 i
*>i 192.48.20.0 48.48.48.48 0 100 0 i
*>i 192.48.30.0 48.48.48.48 0 100 0 i
*>i 192.48.40.0 48.48.48.48 0 100 0 i
Network Next Hop Metric LocPrf Weight Path
*>i 192.49.10.0 48.48.48.48 0 100 0 65001 i
*>i 192.49.20.0 48.48.48.48 0 100 0 65001 i
*>i 192.49.30.0 48.48.48.48 0 100 0 65001 i
*>i 192.49.40.0 48.48.48.48 0 100 0 65001 i
*>i 192.50.10.0 52.52.52.52 0 100 0 65003 i
*>i 192.50.20.0 52.52.52.52 0 100 0 65003 i
*>i 192.50.30.0 52.52.52.52 0 100 0 65003 i
*>i 192.50.40.0 52.52.52.52 0 100 0 65003 i
*>i 192.52.10.0 52.52.52.52 0 100 0 i
*>i 192.52.20.0 52.52.52.52 0 100 0 i
*>i 192.52.30.0 52.52.52.52 0 100 0 i
*>i 192.52.40.0 52.52.52.52 0 100 0 i
*>i 192.53.10.0 52.52.52.52 0 100 0 65003 65001 i
*>i 192.53.20.0 52.52.52.52 0 100 0 65003 65001 i
*>i 192.53.30.0 52.52.52.52 0 100 0 65003 65001 i
*>i 192.53.40.0 52.52.52.52 0 100 0 65003 65001 i
*>i 192.54.10.0 48.48.48.48 0 100 0 65001 i
*>i 192.54.20.0 48.48.48.48 0 100 0 65001 i
*>i 192.54.30.0 48.48.48.48 0 100 0 65001 i
*>i 192.54.40.0 48.48.48.48 0 100 0 65001 i
*>i 192.55.10.0 52.52.52.52 0 100 0 65003 i
*>i 192.55.20.0 52.52.52.52 0 100 0 65003 i
Network Next Hop Metric LocPrf Weight Path
*>i 192.55.30.0 52.52.52.52 0 100 0 65003 i
*>i 192.55.40.0 52.52.52.52 0 100 0 65003 i
*>i 192.56.10.0 52.52.52.52 0 100 0 65003 i
*>i 192.56.20.0 52.52.52.52 0 100 0 65003 i
*>i 192.56.30.0 52.52.52.52 0 100 0 65003 i
*>i 192.56.40.0 52.52.52.52 0 100 0 65003 i
*>i 192.58.10.0 48.48.48.48 0 100 0 65001 i
*>i 192.58.20.0 48.48.48.48 0 100 0 65001 i
*>i 192.58.30.0 48.48.48.48 0 100 0 65001 i
*>i 192.58.40.0 48.48.48.48 0 100 0 65001 i
*>i 192.59.10.0 52.52.52.52 0 100 0 65003 i
*>i 192.59.20.0 52.52.52.52 0 100 0 65003 i
*>i 192.59.30.0 52.52.52.52 0 100 0 65003 i
*>i 192.59.40.0 52.52.52.52 0 100 0 65003 i
*>i 192.60.10.0 60.60.60.60 0 100 0 i
*>i 192.60.20.0 60.60.60.60 0 100 0 i
*>i 192.60.30.0 60.60.60.60 0 100 0 i
*>i 192.60.40.0 60.60.60.60 0 100 0 i
*> 192.61.10.0 0.0.0.0 0 32768 i
*> 192.61.20.0 0.0.0.0 0 32768 i
*> 192.61.30.0 0.0.0.0 0 32768 i
*> 192.61.40.0 0.0.0.0 0 32768 i
Network Next Hop Metric LocPrf Weight Path
*>i 192.168.50.0 60.60.60.60 0 100 0 i
R61(config-router)#

R61(config-router)#DO sh ip rou bgp
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override, p - overrides from PfR

Gateway of last resort is not set

10.0.0.0/8 is variably subnetted, 7 subnets, 2 masks
B 10.10.49.0/24 [200/0] via 48.48.48.48, 00:53:58
B 10.10.54.0/24 [200/0] via 48.48.48.48, 00:53:38
48.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
B 48.48.48.0/24 [200/0] via 48.48.48.48, 00:05:29
49.0.0.0/24 is subnetted, 1 subnets
B 49.49.49.0 [200/0] via 48.48.48.48, 00:03:57
172.16.0.0/16 is variably subnetted, 5 subnets, 2 masks
B 172.16.1.0/24 [200/0] via 52.52.52.52, 00:53:58
B 172.16.2.0/24 [200/0] via 48.48.48.48, 00:53:58
B 172.16.3.0/24 [200/0] via 52.52.52.52, 00:53:58
B 192.48.10.0/24 [200/0] via 48.48.48.48, 00:53:58
B 192.48.20.0/24 [200/0] via 48.48.48.48, 00:53:58
B 192.48.30.0/24 [200/0] via 48.48.48.48, 00:53:58
B 192.48.40.0/24 [200/0] via 48.48.48.48, 00:53:58
B 192.49.10.0/24 [200/0] via 48.48.48.48, 00:53:58
B 192.49.20.0/24 [200/0] via 48.48.48.48, 00:53:58
B 192.49.30.0/24 [200/0] via 48.48.48.48, 00:53:58
B 192.49.40.0/24 [200/0] via 48.48.48.48, 00:53:58
B 192.50.10.0/24 [200/0] via 52.52.52.52, 00:53:45
B 192.50.20.0/24 [200/0] via 52.52.52.52, 00:53:45
B 192.50.30.0/24 [200/0] via 52.52.52.52, 00:53:45
B 192.50.40.0/24 [200/0] via 52.52.52.52, 00:53:45
B 192.52.10.0/24 [200/0] via 52.52.52.52, 00:53:58
B 192.52.20.0/24 [200/0] via 52.52.52.52, 00:53:58
B 192.52.30.0/24 [200/0] via 52.52.52.52, 00:53:58
B 192.52.40.0/24 [200/0] via 52.52.52.52, 00:53:58
B 192.53.10.0/24 [200/0] via 52.52.52.52, 00:53:45
B 192.53.20.0/24 [200/0] via 52.52.52.52, 00:53:45
B 192.53.30.0/24 [200/0] via 52.52.52.52, 00:53:45
B 192.53.40.0/24 [200/0] via 52.52.52.52, 00:53:45
B 192.54.10.0/24 [200/0] via 48.48.48.48, 00:53:38
B 192.54.20.0/24 [200/0] via 48.48.48.48, 00:53:38
B 192.54.30.0/24 [200/0] via 48.48.48.48, 00:53:38
B 192.54.40.0/24 [200/0] via 48.48.48.48, 00:53:38
B 192.55.10.0/24 [200/0] via 52.52.52.52, 00:53:45
B 192.55.20.0/24 [200/0] via 52.52.52.52, 00:53:45
B 192.55.30.0/24 [200/0] via 52.52.52.52, 00:53:45
B 192.55.40.0/24 [200/0] via 52.52.52.52, 00:53:45
B 192.56.10.0/24 [200/0] via 52.52.52.52, 00:53:58
B 192.56.20.0/24 [200/0] via 52.52.52.52, 00:53:58
B 192.56.30.0/24 [200/0] via 52.52.52.52, 00:53:58
B 192.56.40.0/24 [200/0] via 52.52.52.52, 00:53:58
B 192.58.10.0/24 [200/0] via 48.48.48.48, 00:53:58
B 192.58.20.0/24 [200/0] via 48.48.48.48, 00:53:58
B 192.58.30.0/24 [200/0] via 48.48.48.48, 00:53:58
B 192.58.40.0/24 [200/0] via 48.48.48.48, 00:53:58
B 192.59.10.0/24 [200/0] via 52.52.52.52, 00:53:58
B 192.59.20.0/24 [200/0] via 52.52.52.52, 00:53:58
B 192.59.30.0/24 [200/0] via 52.52.52.52, 00:53:58
B 192.59.40.0/24 [200/0] via 52.52.52.52, 00:53:58
B 192.60.10.0/24 [200/0] via 60.60.60.60, 00:53:58
B 192.60.20.0/24 [200/0] via 60.60.60.60, 00:53:58
B 192.60.30.0/24 [200/0] via 60.60.60.60, 00:53:58
B 192.60.40.0/24 [200/0] via 60.60.60.60, 00:53:58
B 192.168.50.0/24 [200/0] via 60.60.60.60, 00:53:58

R48

interface Loopback0
ip address 48.48.48.48 255.255.255.0
!
interface Loopback1
ip address 192.48.10.1 255.255.255.0
!
interface Loopback2
ip address 192.48.20.2 255.255.255.0
!
interface Loopback3
ip address 192.48.30.3 255.255.255.0
!
interface Loopback4
ip address 192.48.40.4 255.255.255.0
!
interface Ethernet0/0
no ip address
shutdown
duplex auto
!
interface Ethernet0/1
ip address 10.10.48.1 255.255.255.0
duplex auto
!
interface Ethernet0/2
ip address 10.10.61.1 255.255.255.0
duplex auto
!
interface Ethernet0/3
ip address 172.16.2.1 255.255.255.0
duplex auto
!
interface Ethernet1/0
no ip address
shutdown
duplex auto
!
interface Ethernet1/1
no ip address
shutdown
duplex auto
!
interface Ethernet1/2
no ip address
shutdown
duplex auto
!
interface Ethernet1/3
no ip address
shutdown
duplex auto
!
router ospf 1
router-id 48.48.48.48
network 10.10.48.0 0.0.0.255 area 0
network 10.10.61.0 0.0.0.255 area 0
network 48.48.48.0 0.0.0.255 area 0
!
router bgp 65002
bgp log-neighbor-changes
network 48.48.48.0 mask 255.255.255.0
network 172.16.2.0 mask 255.255.255.0
network 192.48.10.0
network 192.48.20.0
network 192.48.30.0
network 192.48.40.0
neighbor 52.52.52.52 remote-as 65002
neighbor 52.52.52.52 update-source Loopback0
neighbor 52.52.52.52 next-hop-self
neighbor 60.60.60.60 remote-as 65002
neighbor 60.60.60.60 update-source Loopback0
neighbor 60.60.60.60 next-hop-self
neighbor 61.61.61.61 remote-as 65002
neighbor 61.61.61.61 update-source Loopback0
neighbor 61.61.61.61 next-hop-self
neighbor 172.16.2.2 remote-as 65001

R49

interface Loopback0
ip address 49.49.49.49 255.255.255.0
!
interface Loopback1
ip address 192.49.10.1 255.255.255.0
!
interface Loopback2
ip address 192.49.20.2 255.255.255.0
!
interface Loopback3
ip address 192.49.30.3 255.255.255.0
!
interface Loopback4
ip address 192.49.40.4 255.255.255.0
!
interface Ethernet0/0
ip address 10.10.49.2 255.255.255.0
duplex auto
!
interface Ethernet0/1
ip address 10.10.58.1 255.255.255.0
duplex auto
!
interface Ethernet0/2
ip address 172.16.2.2 255.255.255.0
duplex auto
!
interface Ethernet0/3
no ip address
shutdown
duplex auto
!
interface Ethernet1/0
no ip address
shutdown
duplex auto
!
interface Ethernet1/1
no ip address
shutdown
duplex auto
!
interface Ethernet1/2
no ip address
shutdown
duplex auto
!
interface Ethernet1/3
no ip address
shutdown
duplex auto
!
router ospf 1
router-id 49.49.49.49
network 10.10.49.0 0.0.0.255 area 0
network 10.10.58.0 0.0.0.255 area 0
network 49.49.49.0 0.0.0.255 area 0
!
router bgp 65001
bgp log-neighbor-changes
network 49.49.49.0 mask 255.255.255.0
network 172.16.2.0 mask 255.255.255.0
network 192.49.10.0
network 192.49.20.0
network 192.49.30.0
network 192.49.40.0
neighbor 53.53.53.53 remote-as 65001
neighbor 53.53.53.53 update-source Loopback0
neighbor 53.53.53.53 next-hop-self
neighbor 54.54.54.54 remote-as 65001
neighbor 54.54.54.54 update-source Loopback0
neighbor 54.54.54.54 next-hop-self
neighbor 58.58.58.58 remote-as 65001
neighbor 58.58.58.58 update-source Loopback0
neighbor 58.58.58.58 next-hop-self
neighbor 172.16.2.1 remote-as 65002




R54

interface Loopback0
ip address 54.54.54.54 255.255.255.0
!
interface Loopback1
ip address 192.54.10.1 255.255.255.0
!
interface Loopback2
ip address 192.54.20.2 255.255.255.0
!
interface Loopback3
ip address 192.54.30.3 255.255.255.0
!
interface Loopback4
ip address 192.54.40.4 255.255.255.0
!
interface Ethernet0/0
ip address 10.10.54.1 255.255.255.0
duplex auto
!
interface Ethernet0/1
ip address 10.10.49.1 255.255.255.0
duplex auto
!
interface Ethernet0/2
no ip address
shutdown
duplex auto
!
interface Ethernet0/3
no ip address
shutdown
duplex auto
!
interface Ethernet1/0
no ip address
shutdown
duplex auto
!
interface Ethernet1/1
no ip address
shutdown
duplex auto
!
interface Ethernet1/2
no ip address
shutdown
duplex auto
!
interface Ethernet1/3
no ip address
shutdown
duplex auto
!
router ospf 1
router-id 54.54.54.54
network 10.10.49.0 0.0.0.255 area 0
network 10.10.54.0 0.0.0.255 area 0
network 54.54.54.0 0.0.0.255 area 0
!
router bgp 65001
bgp log-neighbor-changes
network 10.10.49.0 mask 255.255.255.0
network 10.10.54.0 mask 255.255.255.0
network 192.54.10.0
network 192.54.20.0
network 192.54.30.0
network 192.54.40.0
neighbor 49.49.49.49 remote-as 65001
neighbor 49.49.49.49 update-source Loopback0
neighbor 49.49.49.49 next-hop-self
neighbor 53.53.53.53 remote-as 65001
neighbor 53.53.53.53 update-source Loopback0
neighbor 53.53.53.53 next-hop-self
neighbor 58.58.58.58 remote-as 65001
neighbor 58.58.58.58 update-source Loopback0
neighbor 58.58.58.58 next-hop-self

R53

interface Loopback0
ip address 53.53.53.53 255.255.255.0
!
interface Loopback1
ip address 192.53.10.1 255.255.255.0
!
interface Loopback2
ip address 192.53.20.2 255.255.255.0
!
interface Loopback3
ip address 192.53.30.3 255.255.255.0
!
interface Loopback4
ip address 192.53.40.4 255.255.255.0
!
interface Ethernet0/0
ip address 10.10.54.2 255.255.255.0
duplex auto
!
interface Ethernet0/1
ip address 10.10.53.2 255.255.255.0
duplex auto
!
interface Ethernet0/2
no ip address
shutdown
duplex auto
!
interface Ethernet0/3
no ip address
shutdown
duplex auto
!
interface Ethernet1/0
no ip address
shutdown
duplex auto
!
interface Ethernet1/1
no ip address
shutdown
duplex auto
!
interface Ethernet1/2
no ip address
shutdown
duplex auto
!
interface Ethernet1/3
no ip address
shutdown
duplex auto
!
router ospf 1
router-id 53.53.53.53
network 10.10.53.0 0.0.0.255 area 0
network 10.10.54.0 0.0.0.255 area 0
network 53.53.53.0 0.0.0.255 area 0
!
router bgp 65001
bgp log-neighbor-changes
network 192.53.10.0
network 192.53.20.0
network 192.53.30.0
network 192.53.40.0
network 192.54.10.0
network 192.54.20.0
network 192.54.30.0
network 192.54.40.0
neighbor 54.54.54.54 remote-as 65001
neighbor 54.54.54.54 update-source Loopback0
neighbor 58.58.58.58 remote-as 65001
neighbor 58.58.58.58 update-source Loopback0
!

 

 

26 Replies 26

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this is small lab,
all router inside AS-100 with ospf 10 know that any prefix in AS-200 with OSPF 20 is reach via eBGP s3/0 IP 
all router inside AS-200 with ospf 20 know that any prefix in AS-100 with OSPF 10 is reach via eBGP s3/0 IP 

you can see that in R2 I ping 6.6.6.6 (Lo in R6) wihtout use source because I know that R6 know the R2 IP.
what we need 
redistribute OSPF-into-BGP in one site and other site BGP-into-OSPF

Yes. this is one way that is correct, but I am using my lab as Ibgp instead of igp 

Hi @R Manjunatha ,

Advertising your interface addresses would not be best practice. In most real life scenario, all you need to advertise is a handful of prefixes from one AS to the other. Specifying the source address to test connectivity is very common.

Regards,

Regards,
Harold Ritter, CCIE #4168 (EI, SP)

Hello
looks like you have a full ibgp mesh, as such depending how old your rtr IOS is, you need to turn off synchronization and auto summarization, plus make sure you have full IGP route table for all loopbacks and physical links within the ibgp mesh.


router xxx
no auto-summary
no synchronization

Please rate and mark as an accepted solution if you have found any of the information provided useful.
This then could assist others on these forums to find a valuable answer and broadens the community’s global network.

Kind Regards
Paul

R Manjunatha
Level 3
Level 3

Hi

now I am clear about BGP routes ...

I need some help in redistributing BGP to eigrp , i can able to ping from R61 to eigrp routers R43, R47 and R86 similarly I could not able to ping those networks from R60, R50 and R53 different AS .

I attached topology for your reference 

R61

interface Loopback0
ip address 61.61.61.61 255.255.255.0
!
interface Loopback1
ip address 192.61.10.1 255.255.255.0
!
interface Loopback2
ip address 192.61.20.2 255.255.255.0
!
interface Loopback3
ip address 192.61.30.3 255.255.255.0
!
interface Loopback4
ip address 192.61.40.4 255.255.255.0
!
interface Ethernet0/0
ip address 10.10.61.2 255.255.255.0
duplex auto
!
interface Ethernet0/1
ip address 10.10.52.1 255.255.255.0
duplex auto
!
interface Ethernet0/2
ip address 172.16.85.2 255.255.255.0
duplex auto
!
interface Ethernet0/3
no ip address
shutdown
duplex auto
!
interface Ethernet1/0
no ip address
shutdown
duplex auto
!
interface Ethernet1/1
no ip address
shutdown
duplex auto
!
interface Ethernet1/2
no ip address
shutdown
duplex auto
!
interface Ethernet1/3
no ip address
shutdown
duplex auto
!
!
router eigrp 100
network 172.16.85.0 0.0.0.255
redistribute bgp 65002 metric 10000 10 255 255 1500
!
router ospf 1
router-id 61.61.61.61
network 10.10.48.0 0.0.0.255 area 0
network 10.10.61.0 0.0.0.255 area 0
network 61.61.61.0 0.0.0.255 area 0
!
router bgp 65002
bgp log-neighbor-changes
network 61.61.61.0 mask 255.255.255.0
network 172.16.85.0 mask 255.255.255.0
network 192.61.10.0
network 192.61.20.0
network 192.61.30.0
network 192.61.40.0
redistribute eigrp 100
neighbor 48.48.48.48 remote-as 65002
neighbor 48.48.48.48 update-source Loopback0
neighbor 48.48.48.48 next-hop-self
neighbor 52.52.52.52 remote-as 65002
neighbor 52.52.52.52 update-source Loopback0
neighbor 52.52.52.52 next-hop-self
neighbor 60.60.60.60 remote-as 65002
neighbor 60.60.60.60 update-source Loopback0
neighbor 60.60.60.60 next-hop-self

R85

interface Loopback1
ip address 192.85.10.1 255.255.255.0
!
interface Loopback2
ip address 192.85.20.1 255.255.255.0
!
interface Loopback3
ip address 192.85.30.1 255.255.255.0
!
interface Loopback4
ip address 192.85.40.1 255.255.255.0
!
interface Ethernet0/0
ip address 10.10.85.2 255.255.255.0
duplex auto
!
interface Ethernet0/1
ip address 10.10.86.1 255.255.255.0
duplex auto
!
interface Ethernet0/2
ip address 10.10.10.1 255.255.255.0
duplex auto
!
interface Ethernet0/3
ip address 172.16.85.1 255.255.255.0
duplex auto
!
interface Ethernet1/0
ip address 10.10.120.1 255.255.255.0
duplex auto
!
interface Ethernet1/1
no ip address
shutdown
duplex auto
!
interface Ethernet1/2
no ip address
shutdown
duplex auto
!
interface Ethernet1/3
no ip address
shutdown
duplex auto
!
!
router eigrp 100
network 10.10.10.0 0.0.0.255
network 10.10.85.0 0.0.0.255
network 10.10.86.0 0.0.0.255
network 10.10.120.0 0.0.0.255
network 172.16.85.0 0.0.0.255
network 192.85.10.0
network 192.85.20.0
network 192.85.30.0
network 192.85.40.0




R60

interface Loopback0
ip address 60.60.60.60 255.255.255.0
!
interface Loopback1
ip address 192.60.10.1 255.255.255.0
!
interface Loopback2
ip address 192.60.20.2 255.255.255.0
!
interface Loopback3
ip address 192.60.30.3 255.255.255.0
!
interface Loopback4
ip address 192.60.40.4 255.255.255.0
!
interface Ethernet0/0
ip address 10.10.48.2 255.255.255.0
duplex auto
!
interface Ethernet0/1
ip address 10.10.60.1 255.255.255.0
duplex auto
!
interface Ethernet0/2
ip address dhcp
duplex auto
!
interface Ethernet0/3
no ip address
shutdown
duplex auto
!
interface Ethernet1/0
no ip address
shutdown
duplex auto
!
interface Ethernet1/1
no ip address
shutdown
duplex auto
!
interface Ethernet1/2
no ip address
shutdown
duplex auto
!
interface Ethernet1/3
no ip address
shutdown
duplex auto
!
router ospf 1
router-id 60.60.0.60
network 10.10.48.0 0.0.0.255 area 0
network 10.10.60.0 0.0.0.255 area 0
network 60.60.60.0 0.0.0.255 area 0
!
router bgp 65002
bgp log-neighbor-changes
network 60.60.60.0 mask 255.255.255.0
network 192.60.10.0
network 192.60.20.0
network 192.60.30.0
network 192.60.40.0
network 192.168.50.0
neighbor 48.48.48.48 remote-as 65002
neighbor 48.48.48.48 update-source Loopback0
neighbor 52.52.52.52 remote-as 65002
neighbor 52.52.52.52 update-source Loopback0
neighbor 61.61.61.61 remote-as 65002
neighbor 61.61.61.61 update-source Loopback0

I am getting the routes 

R60#sh ip bgp | se 192.43.10.0
*>i 192.43.10.0 61.61.61.61 435200 100 0 ?
R60#sh ip bgp | se 192.47.10.0
*>i 192.47.10.0 61.61.61.61 435200 100 0 ?
R60#sh ip bgp | se 192.86.10.0
*>i 192.86.10.0 61.61.61.61 460800 100 0 ?
R60#

ping failed

R60#ping 192.43.10.1 so
R60#ping 192.43.10.1 source 60.60.60.60
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.43.10.1, timeout is 2 seconds:
Packet sent with a source address of 60.60.60.60
.....
Success rate is 0 percent (0/5)
R60#trace192.43.10.1 source 60.60.60.60
R60#trace 192.43.10.1 source 60.60.60.60
Type escape sequence to abort.
Tracing the route to 192.43.10.1
VRF info: (vrf in name/id, vrf out name/id)
1 10.10.48.1 1 msec 2 msec 1 msec
2 10.10.61.2 2 msec 16 msec 1 msec
3 * * *
4

Hi @R Manjunatha ,

It looks like the traceroute breaks on R85. Can you provide a

show ip route 60.60.60.60

from R85.

Regards,

Regards,
Harold Ritter, CCIE #4168 (EI, SP)

Hi

there is no route 

R85#sh ip route | se 192.60.10.0
R85#
R85#sh ip route | se 60.60.60.0

 

 

Hi @R Manjunatha ,

Your BGP routes are not making it to the eigrp domain.

Can you post the following output from R61.

show ip eigrp topo
show ip eigrp nei

Regards,

Regards,
Harold Ritter, CCIE #4168 (EI, SP)

Hi,

R61#show ip eigrp topo
EIGRP-IPv4 Topology Table for AS(100)/ID(192.61.40.4)
Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply,
r - reply Status, s - sia Status

P 10.10.86.0/24, 1 successors, FD is 307200
via 172.16.85.1 (307200/281600), Ethernet0/2
P 192.57.20.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 10.10.70.0/24, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 172.120.10.0/24, 1 successors, FD is 435200
via 172.16.85.1 (435200/409600), Ethernet0/2
P 172.120.40.0/24, 1 successors, FD is 435200
via 172.16.85.1 (435200/409600), Ethernet0/2
P 192.51.20.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 192.68.40.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 10.10.47.0/24, 1 successors, FD is 332800
via 172.16.85.1 (332800/307200), Ethernet0/2
P 192.62.10.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 10.10.65.0/24, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 172.16.85.0/24, 1 successors, FD is 281600
via Connected, Ethernet0/2
P 192.71.30.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 192.66.10.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 192.85.40.0/24, 1 successors, FD is 409600
via 172.16.85.1 (409600/128256), Ethernet0/2
P 192.72.20.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 10.10.43.0/24, 1 successors, FD is 332800
via 172.16.85.1 (332800/307200), Ethernet0/2
P 192.43.40.0/24, 1 successors, FD is 435200
via 172.16.85.1 (435200/409600), Ethernet0/2
P 192.61.20.0/24, 1 successors, FD is 258560
via Redistributed (258560/0)
P 192.66.30.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 192.6.10.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 192.57.30.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 192.43.30.0/24, 1 successors, FD is 435200
via 172.16.85.1 (435200/409600), Ethernet0/2
P 192.74.20.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 10.10.63.0/24, 1 successors, FD is 332800
via 172.16.85.1 (332800/307200), Ethernet0/2
P 192.65.10.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 192.64.30.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 10.10.62.0/24, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 192.64.10.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 192.70.30.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 192.70.10.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 192.62.30.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 192.51.40.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 172.120.30.0/24, 1 successors, FD is 435200
via 172.16.85.1 (435200/409600), Ethernet0/2
P 192.63.30.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 192.43.20.0/24, 1 successors, FD is 435200
via 172.16.85.1 (435200/409600), Ethernet0/2
P 192.74.10.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 192.47.40.0/24, 1 successors, FD is 435200
via 172.16.85.1 (435200/409600), Ethernet0/2
P 192.73.30.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 192.51.10.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 192.62.40.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 192.63.10.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 192.73.20.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 192.43.10.0/24, 1 successors, FD is 435200
via 172.16.85.1 (435200/409600), Ethernet0/2
P 192.64.40.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 10.10.64.0/24, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 192.85.30.0/24, 1 successors, FD is 409600
via 172.16.85.1 (409600/128256), Ethernet0/2
P 192.86.40.0/24, 1 successors, FD is 460800
via 172.16.85.1 (460800/435200), Ethernet0/2
P 10.10.57.0/24, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 192.63.40.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 192.70.20.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 192.64.20.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 192.65.40.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 10.10.74.0/24, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 192.62.20.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 192.74.30.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 10.10.72.0/24, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 192.85.10.0/24, 1 successors, FD is 409600
via 172.16.85.1 (409600/128256), Ethernet0/2
P 192.72.30.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 192.47.30.0/24, 1 successors, FD is 435200
via 172.16.85.1 (435200/409600), Ethernet0/2
P 192.73.10.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 192.57.10.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 10.10.71.0/24, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 192.6.20.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 61.61.61.0/24, 1 successors, FD is 258560
via Redistributed (258560/0)
P 10.10.6.0/24, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 192.66.20.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 192.61.30.0/24, 1 successors, FD is 258560
via Redistributed (258560/0)
P 192.86.30.0/24, 1 successors, FD is 460800
via 172.16.85.1 (460800/435200), Ethernet0/2
P 192.65.30.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 10.10.68.0/24, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 192.68.10.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 192.68.30.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 192.86.20.0/24, 1 successors, FD is 460800
via 172.16.85.1 (460800/435200), Ethernet0/2
P 192.47.10.0/24, 1 successors, FD is 435200
via 172.16.85.1 (435200/409600), Ethernet0/2
P 192.85.20.0/24, 1 successors, FD is 409600
via 172.16.85.1 (409600/128256), Ethernet0/2
P 192.6.30.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 10.10.85.0/24, 1 successors, FD is 307200
via 172.16.85.1 (307200/281600), Ethernet0/2
P 192.51.30.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 192.65.20.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 192.47.20.0/24, 1 successors, FD is 435200
via 172.16.85.1 (435200/409600), Ethernet0/2
P 192.61.10.0/24, 1 successors, FD is 258560
via Redistributed (258560/0)
P 172.120.20.0/24, 1 successors, FD is 435200
via 172.16.85.1 (435200/409600), Ethernet0/2
P 192.63.20.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 192.68.20.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 192.71.10.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 192.71.20.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 10.10.10.0/24, 1 successors, FD is 307200
via 172.16.85.1 (307200/281600), Ethernet0/2
P 192.61.40.0/24, 1 successors, FD is 258560
via Redistributed (258560/0)
P 192.72.10.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 192.70.40.1/32, 1 successors, FD is 563200
via 172.16.85.1 (563200/537600), Ethernet0/2
P 192.86.10.0/24, 1 successors, FD is 460800
via 172.16.85.1 (460800/435200), Ethernet0/2
P 10.10.120.0/24, 1 successors, FD is 307200
via 172.16.85.1 (307200/281600), Ethernet0/2

R61#show ip eigrp nei
EIGRP-IPv4 Neighbors for AS(100)
H Address Interface Hold Uptime SRTT RTO Q Seq
(sec) (ms) Cnt Num
0 172.16.85.1 Et0/2 11 00:04:54 217 1302 0 50

 

hi,

I am getting only routes from R61

R86#sh ip route | in 192.61.
D EX 192.61.10.0/24 [170/335360] via 10.10.47.1, 00:07:47, Ethernet0/0
D EX 192.61.20.0/24 [170/335360] via 10.10.47.1, 00:07:47, Ethernet0/0
D EX 192.61.30.0/24 [170/335360] via 10.10.47.1, 00:07:47, Ethernet0/0
D EX 192.61.40.0/24 [170/335360] via 10.10.47.1, 00:07:47, Ethernet0/0

 

Hi @R Manjunatha ,

You need to add the following command on R61 to make sure ibgp learnt routes will be redistributed in eigrp:

 

router bgp 65002

bgp redistribute-internal

 

Regards,

Regards,
Harold Ritter, CCIE #4168 (EI, SP)

Hi,

Oh .... thanks 

its learning all ibgp routes now. this additional command has been missed 

regards,