ibgp learned routes not advertise to ebgp peers

[Msc Bank]

Dear All,

Please find the attach topology FYR, 

1) i am not able to receive R2 network (20.20.20.0 ) to R3 router 

2) i am not able to receive  R3 Network ( 10.10.10.0 ) to R2

Both network are receive on R1 

R1 having bgp AS 1

R2 & R3 having bgp as 65000

sh run | s bgp
router bgp 65000
no synchronization
bgp log-neighbor-changes
network 10.10.10.0 mask 255.255.255.0
neighbor 192.168.2.1 remote-as 1
no auto-summary

R3#sh ip bgp
BGP table version is 3, local router ID is 192.168.2.2
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
*> 10.10.10.0/24 0.0.0.0 0 32768 i
*> 30.30.30.0/24 192.168.2.1 0 0 1 i

_______________________________________________________________________________________

R2#sh run | s bgp
router bgp 65000
no synchronization
bgp log-neighbor-changes
network 20.20.20.0 mask 255.255.255.0
neighbor 192.168.1.2 remote-as 1
no auto-summary

R2#sh ip bgp
BGP table version is 3, local router ID is 192.168.1.1
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
*> 20.20.20.0/24 0.0.0.0 0 32768 i
*> 30.30.30.0/24 192.168.1.2 0 0 1 i

____________________________________________________________________________________

R1#sh run | s bgp
router bgp 1
no synchronization
bgp log-neighbor-changes
network 30.30.30.0 mask 255.255.255.0
neighbor 192.168.1.1 remote-as 65000
neighbor 192.168.1.1 next-hop-self
neighbor 192.168.2.2 remote-as 65000
neighbor 192.168.2.2 next-hop-self
no auto-summary

R1#sh ip bgp
BGP table version is 4, local router ID is 192.168.1.2
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
*> 10.10.10.0/24 192.168.2.2 0 0 65000 i
*> 20.20.20.0/24 192.168.1.1 0 0 65000 i
*> 30.30.30.0/24 0.0.0.0 0 32768 i

[paul driver]

Hello

R2/R3 are in the same ASN but are at present discontinuous from each other, you need to have a direct connection between these two routers or at least have to IGP(rip/eigrp/opsf) running so these two routers can form an for IBGP  peering over that igp.

The other alternative is not to have them in the same ASN but then they are not ibgp peers.

[Msc Bank]

Hi Paul,
Thanks for your reply.

in which router we have to configure IGP and how can i do this can you please help me with this.

[paul driver]

Hello

Please see below incorporating an RIPv2 however I would like to say I wouldn't suggest this topology as a viable solution.

R1
router rip
no au
ver 2
network 192.168.1.0
network 192.168.2.0

R2
router rip
no au
ver 2
network 192.168.1.0

router bgp 65000
neighbor 192.168.2.2 remote-as 65000

R3
router rip
no au
ver 2
network 192.168.2.0

router bgp 65000
neighbor 192.168.1.1 remote-as 65000